[{"citation":{"mla":"Bauch, David, et al. “On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.” <i>Advanced Quantum Technologies</i>, vol. 7, no. 1, 2300142, Wiley, 2023, doi:<a href=\"https://doi.org/10.1002/qute.202300142\">10.1002/qute.202300142</a>.","ama":"Bauch D, Siebert D, Jöns KD, Förstner J, Schumacher S. On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs. <i>Advanced Quantum Technologies</i>. 2023;7(1). doi:<a href=\"https://doi.org/10.1002/qute.202300142\">10.1002/qute.202300142</a>","bibtex":"@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs}, volume={7}, DOI={<a href=\"https://doi.org/10.1002/qute.202300142\">10.1002/qute.202300142</a>}, number={12300142}, journal={Advanced Quantum Technologies}, publisher={Wiley}, author={Bauch, David and Siebert, Dustin and Jöns, Klaus D. and Förstner, Jens and Schumacher, Stefan}, year={2023} }","apa":"Bauch, D., Siebert, D., Jöns, K. D., Förstner, J., &#38; Schumacher, S. (2023). On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs. <i>Advanced Quantum Technologies</i>, <i>7</i>(1), Article 2300142. <a href=\"https://doi.org/10.1002/qute.202300142\">https://doi.org/10.1002/qute.202300142</a>","ieee":"D. Bauch, D. Siebert, K. D. Jöns, J. Förstner, and S. Schumacher, “On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs,” <i>Advanced Quantum Technologies</i>, vol. 7, no. 1, Art. no. 2300142, 2023, doi: <a href=\"https://doi.org/10.1002/qute.202300142\">10.1002/qute.202300142</a>.","chicago":"Bauch, David, Dustin Siebert, Klaus D. Jöns, Jens Förstner, and Stefan Schumacher. “On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.” <i>Advanced Quantum Technologies</i> 7, no. 1 (2023). <a href=\"https://doi.org/10.1002/qute.202300142\">https://doi.org/10.1002/qute.202300142</a>.","short":"D. Bauch, D. Siebert, K.D. Jöns, J. Förstner, S. Schumacher, Advanced Quantum Technologies 7 (2023)."},"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen","_id":"53"},{"name":"TRR 142 - Project Area B","_id":"55"},{"_id":"56","name":"TRR 142 - Project Area C"},{"_id":"167","name":"TRR 142; TP B06: Ultraschnelle kohärente opto-elektronische Kontrolle eines photonischen Quantensystems"},{"_id":"173","name":"TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch bei Telekom Wellenlängen"},{"name":"PhoQC: Photonisches Quantencomputing","_id":"266"}],"publisher":"Wiley","_id":"61252","user_id":"16199","volume":7,"status":"public","date_created":"2025-09-12T11:11:56Z","type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"642"},{"_id":"61"},{"_id":"230"},{"_id":"35"},{"_id":"34"},{"_id":"429"},{"_id":"27"},{"_id":"623"}],"publication":"Advanced Quantum Technologies","issue":"1","abstract":[{"text":"<jats:title>Abstract</jats:title><jats:p>The biexciton‐exciton emission cascade commonly used in quantum‐dot systems to generate polarization entanglement yields photons with intrinsically limited indistinguishability. In the present work, it focuses on the generation of pairs of photons with high degrees of polarization entanglement and simultaneously high indistinguishability. It achieves this goal by selectively reducing the biexciton lifetime with an optical resonator. It demonstrates that a suitably tailored circular Bragg reflector fulfills the requirements of sufficient selective Purcell enhancement of biexciton emission paired with spectrally broad photon extraction and twofold degenerate optical modes. The in‐depth theoretical study combines (i) the optimization of realistic photonic structures solving Maxwell's equations from which model parameters are extracted as input for (ii) microscopic simulations of quantum‐dot cavity excitation dynamics with full access to photon properties. It reports non‐trivial dependencies on system parameters and use the predictive power of the combined theoretical approach to determine the optimal range of Purcell enhancement that maximizes indistinguishability and entanglement to near unity values, here specifically for the telecom C‐band at 1550 nm.</jats:p>","lang":"eng"}],"article_number":"2300142","language":[{"iso":"eng"}],"doi":"10.1002/qute.202300142","title":"On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs","year":"2023","author":[{"first_name":"David","last_name":"Bauch","full_name":"Bauch, David"},{"full_name":"Siebert, Dustin","first_name":"Dustin","last_name":"Siebert"},{"full_name":"Jöns, Klaus D.","last_name":"Jöns","first_name":"Klaus D.","id":"85353"},{"full_name":"Förstner, Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner","first_name":"Jens","id":"158"},{"id":"27271","first_name":"Stefan","last_name":"Schumacher","orcid":"0000-0003-4042-4951","full_name":"Schumacher, Stefan"}],"publication_identifier":{"issn":["2511-9044","2511-9044"]},"publication_status":"published","date_updated":"2025-09-12T11:16:12Z","intvolume":"         7"},{"project":[{"name":"TRR 142: TRR 142","_id":"53"},{"_id":"56","name":"TRR 142 - C: TRR 142 - Project Area C"},{"_id":"75","name":"TRR 142 - C5: TRR 142 - Subproject C5"}],"citation":{"bibtex":"@article{Widhalm_Golla_Weber_Mackwitz_Zrenner_Meier_2022, title={Electric-field-induced second harmonic generation in silicon dioxide}, volume={30}, DOI={<a href=\"https://doi.org/10.1364/oe.443489\">10.1364/oe.443489</a>}, number={44867}, journal={Optics Express}, publisher={The Optical Society}, author={Widhalm, Alex and Golla, Christian and Weber, Nils and Mackwitz, Peter and Zrenner, Artur and Meier, Cedrik}, year={2022} }","ama":"Widhalm A, Golla C, Weber N, Mackwitz P, Zrenner A, Meier C. Electric-field-induced second harmonic generation in silicon dioxide. <i>Optics Express</i>. 2022;30(4). doi:<a href=\"https://doi.org/10.1364/oe.443489\">10.1364/oe.443489</a>","mla":"Widhalm, Alex, et al. “Electric-Field-Induced Second Harmonic Generation in Silicon Dioxide.” <i>Optics Express</i>, vol. 30, no. 4, 4867, The Optical Society, 2022, doi:<a href=\"https://doi.org/10.1364/oe.443489\">10.1364/oe.443489</a>.","chicago":"Widhalm, Alex, Christian Golla, Nils Weber, Peter Mackwitz, Artur Zrenner, and Cedrik Meier. “Electric-Field-Induced Second Harmonic Generation in Silicon Dioxide.” <i>Optics Express</i> 30, no. 4 (2022). <a href=\"https://doi.org/10.1364/oe.443489\">https://doi.org/10.1364/oe.443489</a>.","short":"A. Widhalm, C. Golla, N. Weber, P. Mackwitz, A. Zrenner, C. Meier, Optics Express 30 (2022).","ieee":"A. Widhalm, C. Golla, N. Weber, P. Mackwitz, A. Zrenner, and C. Meier, “Electric-field-induced second harmonic generation in silicon dioxide,” <i>Optics Express</i>, vol. 30, no. 4, Art. no. 4867, 2022, doi: <a href=\"https://doi.org/10.1364/oe.443489\">10.1364/oe.443489</a>.","apa":"Widhalm, A., Golla, C., Weber, N., Mackwitz, P., Zrenner, A., &#38; Meier, C. (2022). Electric-field-induced second harmonic generation in silicon dioxide. <i>Optics Express</i>, <i>30</i>(4), Article 4867. <a href=\"https://doi.org/10.1364/oe.443489\">https://doi.org/10.1364/oe.443489</a>"},"status":"public","volume":30,"user_id":"20798","publisher":"The Optical Society","_id":"29716","publication":"Optics Express","issue":"4","department":[{"_id":"15"}],"keyword":["Atomic and Molecular Physics","and Optics"],"type":"journal_article","date_created":"2022-02-01T15:36:34Z","intvolume":"        30","publication_status":"published","date_updated":"2022-02-07T14:20:13Z","publication_identifier":{"issn":["1094-4087"]},"author":[{"full_name":"Widhalm, Alex","last_name":"Widhalm","first_name":"Alex"},{"full_name":"Golla, Christian","last_name":"Golla","first_name":"Christian"},{"full_name":"Weber, Nils","last_name":"Weber","first_name":"Nils"},{"first_name":"Peter","last_name":"Mackwitz","full_name":"Mackwitz, Peter"},{"last_name":"Zrenner","first_name":"Artur","orcid":"0000-0002-5190-0944","full_name":"Zrenner, Artur","id":"606"},{"id":"20798","full_name":"Meier, Cedrik","orcid":"https://orcid.org/0000-0002-3787-3572","last_name":"Meier","first_name":"Cedrik"}],"title":"Electric-field-induced second harmonic generation in silicon dioxide","year":"2022","doi":"10.1364/oe.443489","language":[{"iso":"eng"}],"article_number":"4867"},{"date_created":"2022-03-21T10:12:58Z","file":[{"creator":"fossie","date_created":"2022-03-22T18:03:50Z","file_name":"2022-03 Hammer - SPIE Photonics West 2022 - Resonant evanescent excitation of OAM modes in a high-contrast circular (official version).pdf","access_level":"open_access","file_size":2015899,"relation":"main_file","date_updated":"2022-03-22T18:03:50Z","file_id":"30444","content_type":"application/pdf"}],"department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"type":"conference","keyword":["tet_topic_waveguide"],"publication":"Complex Light and Optical Forces XVI","abstract":[{"lang":"eng","text":"Resonant evanescent coupling can be utilized to selectively excite orbital angular momentum (OAM) modes of high angular order supported by a thin circular dielectric rod. Our 2.5-D hybrid-analytical coupled mode model combines the vectorial fields associated with the fundamental TE- and TM-modes of a standard silicon photonics slab waveguide, propagating at oblique angles with respect to the rod axis, and the hybrid modes supported by the rod. One observes an efficient resonant interaction in cases where the common axial wavenumber of the waves in the slab matches the propagation constant of one or more modes of the rod. For certain modes of high angular order, the incident wave is able to transfer its directionality to the field in the fiber, exciting effectively only one of a pair of degenerate OAM modes"}],"language":[{"iso":"eng"}],"doi":"10.1117/12.2612179","author":[{"id":"48077","first_name":"Manfred","orcid":"0000-0002-6331-9348","last_name":"Hammer","full_name":"Hammer, Manfred"},{"id":"40428","full_name":"Ebers, Lena","last_name":"Ebers","first_name":"Lena"},{"id":"158","full_name":"Förstner, Jens","last_name":"Förstner","orcid":"0000-0001-7059-9862","first_name":"Jens"}],"title":"Resonant evanescent excitation of OAM modes in a high-contrast circular step-index fiber","year":"2022","publication_status":"published","date_updated":"2022-03-22T18:04:20Z","oa":"1","citation":{"bibtex":"@inproceedings{Hammer_Ebers_Förstner_2022, title={Resonant evanescent excitation of OAM modes in a high-contrast circular step-index fiber}, DOI={<a href=\"https://doi.org/10.1117/12.2612179\">10.1117/12.2612179</a>}, booktitle={Complex Light and Optical Forces XVI}, publisher={SPIE}, author={Hammer, Manfred and Ebers, Lena and Förstner, Jens}, editor={Andrews, David L. and Galvez, Enrique J. and Rubinsztein-Dunlop, Halina}, year={2022}, pages={120170F} }","ama":"Hammer M, Ebers L, Förstner J. Resonant evanescent excitation of OAM modes in a high-contrast circular step-index fiber. In: Andrews DL, Galvez EJ, Rubinsztein-Dunlop H, eds. <i>Complex Light and Optical Forces XVI</i>. SPIE; 2022:120170F. doi:<a href=\"https://doi.org/10.1117/12.2612179\">10.1117/12.2612179</a>","mla":"Hammer, Manfred, et al. “Resonant Evanescent Excitation of OAM Modes in a High-Contrast Circular Step-Index Fiber.” <i>Complex Light and Optical Forces XVI</i>, edited by David L. Andrews et al., SPIE, 2022, p. 120170F, doi:<a href=\"https://doi.org/10.1117/12.2612179\">10.1117/12.2612179</a>.","short":"M. Hammer, L. Ebers, J. Förstner, in: D.L. Andrews, E.J. Galvez, H. Rubinsztein-Dunlop (Eds.), Complex Light and Optical Forces XVI, SPIE, 2022, p. 120170F.","chicago":"Hammer, Manfred, Lena Ebers, and Jens Förstner. “Resonant Evanescent Excitation of OAM Modes in a High-Contrast Circular Step-Index Fiber.” In <i>Complex Light and Optical Forces XVI</i>, edited by David L. Andrews, Enrique J. Galvez, and Halina Rubinsztein-Dunlop, 120170F. SPIE, 2022. <a href=\"https://doi.org/10.1117/12.2612179\">https://doi.org/10.1117/12.2612179</a>.","ieee":"M. Hammer, L. Ebers, and J. Förstner, “Resonant evanescent excitation of OAM modes in a high-contrast circular step-index fiber,” in <i>Complex Light and Optical Forces XVI</i>, 2022, p. 120170F, doi: <a href=\"https://doi.org/10.1117/12.2612179\">10.1117/12.2612179</a>.","apa":"Hammer, M., Ebers, L., &#38; Förstner, J. (2022). Resonant evanescent excitation of OAM modes in a high-contrast circular step-index fiber. In D. L. Andrews, E. J. Galvez, &#38; H. Rubinsztein-Dunlop (Eds.), <i>Complex Light and Optical Forces XVI</i> (p. 120170F). SPIE. <a href=\"https://doi.org/10.1117/12.2612179\">https://doi.org/10.1117/12.2612179</a>"},"file_date_updated":"2022-03-22T18:03:50Z","project":[{"_id":"56","name":"TRR 142 - C: TRR 142 - Project Area C"},{"name":"TRR 142: TRR 142","_id":"53"},{"name":"TRR 142 - C5: TRR 142 - Subproject C5","_id":"75"}],"_id":"30387","publisher":"SPIE","page":"120170F","editor":[{"full_name":"Andrews, David L.","first_name":"David L.","last_name":"Andrews"},{"full_name":"Galvez, Enrique J.","last_name":"Galvez","first_name":"Enrique J."},{"first_name":"Halina","last_name":"Rubinsztein-Dunlop","full_name":"Rubinsztein-Dunlop, Halina"}],"user_id":"158","ddc":["530"],"status":"public","has_accepted_license":"1"},{"oa":"1","citation":{"bibtex":"@article{Reineke Matsudo_Sain_Carletti_Zhang_Gao_Angelis_Huang_Zentgraf_2022, title={Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces}, volume={9}, DOI={<a href=\"https://doi.org/10.1002/advs.202104508\">10.1002/advs.202104508</a>}, number={122104508}, journal={Advanced Science}, publisher={Wiley}, author={Reineke Matsudo, Bernhard and Sain, Basudeb and Carletti, Luca and Zhang, Xue and Gao, Wenlong and Angelis, Costantino and Huang, Lingling and Zentgraf, Thomas}, year={2022} }","ama":"Reineke Matsudo B, Sain B, Carletti L, et al. Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces. <i>Advanced Science</i>. 2022;9(12). doi:<a href=\"https://doi.org/10.1002/advs.202104508\">10.1002/advs.202104508</a>","mla":"Reineke Matsudo, Bernhard, et al. “Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces.” <i>Advanced Science</i>, vol. 9, no. 12, 2104508, Wiley, 2022, doi:<a href=\"https://doi.org/10.1002/advs.202104508\">10.1002/advs.202104508</a>.","chicago":"Reineke Matsudo, Bernhard, Basudeb Sain, Luca Carletti, Xue Zhang, Wenlong Gao, Costantino Angelis, Lingling Huang, and Thomas Zentgraf. “Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces.” <i>Advanced Science</i> 9, no. 12 (2022). <a href=\"https://doi.org/10.1002/advs.202104508\">https://doi.org/10.1002/advs.202104508</a>.","short":"B. Reineke Matsudo, B. Sain, L. Carletti, X. Zhang, W. Gao, C. Angelis, L. Huang, T. Zentgraf, Advanced Science 9 (2022).","ieee":"B. Reineke Matsudo <i>et al.</i>, “Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces,” <i>Advanced Science</i>, vol. 9, no. 12, Art. no. 2104508, 2022, doi: <a href=\"https://doi.org/10.1002/advs.202104508\">10.1002/advs.202104508</a>.","apa":"Reineke Matsudo, B., Sain, B., Carletti, L., Zhang, X., Gao, W., Angelis, C., Huang, L., &#38; Zentgraf, T. (2022). Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces. <i>Advanced Science</i>, <i>9</i>(12), Article 2104508. <a href=\"https://doi.org/10.1002/advs.202104508\">https://doi.org/10.1002/advs.202104508</a>"},"file_date_updated":"2022-03-03T07:23:15Z","project":[{"_id":"53","name":"TRR 142: TRR 142"},{"_id":"56","name":"TRR 142 - C: TRR 142 - Project Area C"},{"name":"TRR 142 - C5: TRR 142 - Subproject C5","_id":"75"}],"quality_controlled":"1","_id":"29902","publisher":"Wiley","volume":9,"user_id":"30525","ddc":["530"],"status":"public","has_accepted_license":"1","date_created":"2022-02-21T08:09:02Z","file":[{"file_size":1001422,"access_level":"closed","file_name":"2022_ACSPhotonics_NonlinearChiral_Arxiv.pdf","date_updated":"2022-03-03T07:23:15Z","relation":"main_file","content_type":"application/pdf","success":1,"file_id":"30196","creator":"zentgraf","date_created":"2022-03-03T07:23:15Z"}],"department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"}],"keyword":["General Physics and Astronomy","General Engineering","Biochemistry","Genetics and Molecular Biology (miscellaneous)","General Materials Science","General Chemical Engineering","Medicine (miscellaneous)"],"type":"journal_article","issue":"12","publication":"Advanced Science","language":[{"iso":"eng"}],"article_number":"2104508","main_file_link":[{"url":"https://doi.org/10.1002/advs.202104508","open_access":"1"}],"doi":"10.1002/advs.202104508","author":[{"last_name":"Reineke Matsudo","first_name":"Bernhard","full_name":"Reineke Matsudo, Bernhard"},{"last_name":"Sain","first_name":"Basudeb","full_name":"Sain, Basudeb"},{"last_name":"Carletti","first_name":"Luca","full_name":"Carletti, Luca"},{"last_name":"Zhang","first_name":"Xue","full_name":"Zhang, Xue"},{"first_name":"Wenlong","last_name":"Gao","full_name":"Gao, Wenlong"},{"first_name":"Costantino","last_name":"Angelis","full_name":"Angelis, Costantino"},{"last_name":"Huang","first_name":"Lingling","full_name":"Huang, Lingling"},{"first_name":"Thomas","orcid":"0000-0002-8662-1101","last_name":"Zentgraf","full_name":"Zentgraf, Thomas","id":"30525"}],"publication_identifier":{"issn":["2198-3844","2198-3844"]},"year":"2022","title":"Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces","article_type":"original","intvolume":"         9","publication_status":"published","date_updated":"2022-04-25T13:04:44Z"},{"publication":"Journal of the Optical Society of America B","issue":"1","abstract":[{"text":"Optical traveling wave antennas offer unique opportunities to control and selectively guide light into a specific direction, which renders them excellent candidates for optical communication and sensing. These applications require state-of-the-art engineering to reach optimized functionalities such as high directivity and radiation efficiency, low sidelobe levels, broadband and tunable capabilities, and compact design. In this work, we report on the numerical optimization of the directivity of optical traveling wave antennas made from low-loss dielectric materials using full-wave numerical simulations in conjunction with the particle swarm optimization algorithm. The antennas are composed of a reflector and a director deposited on a glass substrate, and an emitter placed in the feed gap between them serves as an internal source of excitation. In particular, we analyze antennas with rectangular- and horn-shaped directors made of either hafnium dioxide or silicon. The optimized antennas produce highly directional emissions due to the presence of two dominant guided TE modes in the director in addition to leaky modes. These guided modes dominate the far-field emission pattern and govern the direction of the main lobe emission, which predominately originates from the end facet of the director. Our work also provides a comprehensive analysis of the modes, radiation patterns, parametric influences, and bandwidths of the antennas, which highlights their robust nature.","lang":"eng"}],"file":[{"content_type":"application/pdf","file_id":"28417","file_size":14029741,"date_updated":"2021-12-08T08:26:57Z","relation":"main_file","embargo":"2022-12-08","creator":"fossie","access_level":"local","file_name":"2021-12 Farheen - JOSA B - Optimization of optical nanoantennas.pdf","date_created":"2021-12-08T08:26:57Z","embargo_to":"open_access"},{"relation":"supplementary_material","date_updated":"2021-12-08T08:29:49Z","file_name":"2021-12 Farheen - JOSA B - Optimization of optical nanoantennas SUPPLEMENTARY MATERIAL.pdf","file_size":655495,"access_level":"open_access","file_id":"28418","content_type":"application/pdf","creator":"fossie","date_created":"2021-12-08T08:29:49Z"}],"date_created":"2021-12-08T07:14:39Z","type":"journal_article","keyword":["tet_topic_opticalantenna"],"department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"title":"Optimization of optical waveguide antennas for directive emission of light","year":"2022","author":[{"id":"53444","orcid":"0000-0001-7730-3489","last_name":"Farheen","first_name":"Henna","full_name":"Farheen, Henna"},{"last_name":"Leuteritz","first_name":"Till","full_name":"Leuteritz, Till"},{"full_name":"Linden, Stefan","last_name":"Linden","first_name":"Stefan"},{"last_name":"Myroshnychenko","first_name":"Viktor","full_name":"Myroshnychenko, Viktor","id":"46371"},{"full_name":"Förstner, Jens","first_name":"Jens","last_name":"Förstner","orcid":"0000-0001-7059-9862","id":"158"}],"publication_identifier":{"issn":["0740-3224","1520-8540"]},"date_updated":"2024-07-22T07:45:12Z","publication_status":"published","intvolume":"        39","language":[{"iso":"eng"}],"doi":"10.1364/josab.438514","file_date_updated":"2021-12-08T08:29:49Z","citation":{"ama":"Farheen H, Leuteritz T, Linden S, Myroshnychenko V, Förstner J. Optimization of optical waveguide antennas for directive emission of light. <i>Journal of the Optical Society of America B</i>. 2022;39(1):83. doi:<a href=\"https://doi.org/10.1364/josab.438514\">10.1364/josab.438514</a>","bibtex":"@article{Farheen_Leuteritz_Linden_Myroshnychenko_Förstner_2022, title={Optimization of optical waveguide antennas for directive emission of light}, volume={39}, DOI={<a href=\"https://doi.org/10.1364/josab.438514\">10.1364/josab.438514</a>}, number={1}, journal={Journal of the Optical Society of America B}, author={Farheen, Henna and Leuteritz, Till and Linden, Stefan and Myroshnychenko, Viktor and Förstner, Jens}, year={2022}, pages={83} }","mla":"Farheen, Henna, et al. “Optimization of Optical Waveguide Antennas for Directive Emission of Light.” <i>Journal of the Optical Society of America B</i>, vol. 39, no. 1, 2022, p. 83, doi:<a href=\"https://doi.org/10.1364/josab.438514\">10.1364/josab.438514</a>.","chicago":"Farheen, Henna, Till Leuteritz, Stefan Linden, Viktor Myroshnychenko, and Jens Förstner. “Optimization of Optical Waveguide Antennas for Directive Emission of Light.” <i>Journal of the Optical Society of America B</i> 39, no. 1 (2022): 83. <a href=\"https://doi.org/10.1364/josab.438514\">https://doi.org/10.1364/josab.438514</a>.","short":"H. Farheen, T. Leuteritz, S. Linden, V. Myroshnychenko, J. Förstner, Journal of the Optical Society of America B 39 (2022) 83.","apa":"Farheen, H., Leuteritz, T., Linden, S., Myroshnychenko, V., &#38; Förstner, J. (2022). Optimization of optical waveguide antennas for directive emission of light. <i>Journal of the Optical Society of America B</i>, <i>39</i>(1), 83. <a href=\"https://doi.org/10.1364/josab.438514\">https://doi.org/10.1364/josab.438514</a>","ieee":"H. Farheen, T. Leuteritz, S. Linden, V. Myroshnychenko, and J. Förstner, “Optimization of optical waveguide antennas for directive emission of light,” <i>Journal of the Optical Society of America B</i>, vol. 39, no. 1, p. 83, 2022, doi: <a href=\"https://doi.org/10.1364/josab.438514\">10.1364/josab.438514</a>."},"project":[{"grant_number":"231447078","_id":"53","name":"TRR 142"},{"_id":"56","name":"TRR 142 - Project Area C"},{"_id":"75","grant_number":"231447078","name":"TRR 142 - Subproject C5"},{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"oa":"1","status":"public","has_accepted_license":"1","page":"83","_id":"28413","ddc":["530"],"user_id":"158","volume":39},{"has_accepted_license":"1","status":"public","editor":[{"full_name":"García-Blanco, Sonia M.","last_name":"García-Blanco","first_name":"Sonia M."},{"full_name":"Cheben, Pavel","last_name":"Cheben","first_name":"Pavel"}],"ddc":["530"],"user_id":"158","publisher":"SPIE","_id":"30389","page":"1200414","project":[{"name":"TRR 142: TRR 142","_id":"53"},{"_id":"56","name":"TRR 142 - C: TRR 142 - Project Area C"},{"name":"TRR 142 - C05: TRR 142 - Subproject C05","_id":"75"}],"citation":{"ieee":"M. Hammer, “Small-scale online simulations in guided-wave photonics,” in <i>Integrated Optics: Devices, Materials, and Technologies XXVI</i>, 2022, p. 1200414, doi: <a href=\"https://doi.org/10.1117/12.2612208\">10.1117/12.2612208</a>.","apa":"Hammer, M. (2022). Small-scale online simulations in guided-wave photonics. In S. M. García-Blanco &#38; P. Cheben (Eds.), <i>Integrated Optics: Devices, Materials, and Technologies XXVI</i> (p. 1200414). SPIE. <a href=\"https://doi.org/10.1117/12.2612208\">https://doi.org/10.1117/12.2612208</a>","short":"M. Hammer, in: S.M. García-Blanco, P. Cheben (Eds.), Integrated Optics: Devices, Materials, and Technologies XXVI, SPIE, 2022, p. 1200414.","chicago":"Hammer, Manfred. “Small-Scale Online Simulations in Guided-Wave Photonics.” In <i>Integrated Optics: Devices, Materials, and Technologies XXVI</i>, edited by Sonia M. García-Blanco and Pavel Cheben, 1200414. SPIE, 2022. <a href=\"https://doi.org/10.1117/12.2612208\">https://doi.org/10.1117/12.2612208</a>.","mla":"Hammer, Manfred. “Small-Scale Online Simulations in Guided-Wave Photonics.” <i>Integrated Optics: Devices, Materials, and Technologies XXVI</i>, edited by Sonia M. García-Blanco and Pavel Cheben, SPIE, 2022, p. 1200414, doi:<a href=\"https://doi.org/10.1117/12.2612208\">10.1117/12.2612208</a>.","bibtex":"@inproceedings{Hammer_2022, title={Small-scale online simulations in guided-wave photonics}, DOI={<a href=\"https://doi.org/10.1117/12.2612208\">10.1117/12.2612208</a>}, booktitle={Integrated Optics: Devices, Materials, and Technologies XXVI}, publisher={SPIE}, author={Hammer, Manfred}, editor={García-Blanco, Sonia M. and Cheben, Pavel}, year={2022}, pages={1200414} }","ama":"Hammer M. Small-scale online simulations in guided-wave photonics. In: García-Blanco SM, Cheben P, eds. <i>Integrated Optics: Devices, Materials, and Technologies XXVI</i>. SPIE; 2022:1200414. doi:<a href=\"https://doi.org/10.1117/12.2612208\">10.1117/12.2612208</a>"},"file_date_updated":"2022-03-22T18:05:02Z","oa":"1","date_updated":"2023-04-20T10:10:55Z","publication_status":"published","author":[{"last_name":"Hammer","first_name":"Manfred","orcid":"0000-0002-6331-9348","full_name":"Hammer, Manfred","id":"48077"}],"title":"Small-scale online simulations in guided-wave photonics","year":"2022","doi":"10.1117/12.2612208","language":[{"iso":"eng"}],"abstract":[{"text":"Online solvers for a series of standard 1-D or 2-D problems in integrated optics will be discussed. Implemented on the basis of HTML/JavaScript/SVG with core routines compiled from well tested C++-sources, the quasi-analytical algorithms require a computational load that can be handled easily even by current mobile devices. So far the series covers the 1-D guided modes of dielectric multilayer slab waveguides and the oblique plane wave reflection from these, the modes of rectangular channel waveguides (in an approximation of effective indices), bend modes of curved multilayer slabs, whispering-gallery resonances (“Quasi-Normal-Modes”) supported by circular dielectric cavities, the hybrid modes of circular multi-step-index optical fibers, bound and leaky modes of 1-D complex multilayers, including plasmonic surface modes, and, with restrictions, quite general rectangular scattering problems in 2-D.","lang":"eng"}],"publication":"Integrated Optics: Devices, Materials, and Technologies XXVI","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"type":"conference","keyword":["tet_topic_waveguide"],"date_created":"2022-03-21T10:17:30Z","file":[{"relation":"main_file","date_updated":"2022-03-22T18:05:02Z","file_name":"2022-03 Hammer - SPIE Photonics West 2022 - Small-scale online simulations in guided-wave photonics (official version).pdf","access_level":"open_access","file_size":868473,"file_id":"30445","content_type":"application/pdf","creator":"fossie","date_created":"2022-03-22T18:05:02Z"}]},{"issue":"3","publication":"Symmetry","abstract":[{"text":"<jats:p>Multimode integrated interferometers have great potential for both spectral engineering and metrological applications. However, the material dispersion of integrated platforms constitutes an obstacle that limits the performance and precision of such interferometers. At the same time, two-colour nonlinear interferometers present an important tool for metrological applications, when measurements in a certain frequency range are difficult. In this manuscript, we theoretically developed and investigated an integrated multimode two-colour SU(1,1) interferometer operating in a supersensitive mode. By ensuring the proper design of the integrated platform, we suppressed the dispersion, thereby significantly increasing the visibility of the interference pattern. The use of a continuous wave pump laser provided the symmetry between the spectral shapes of the signal and idler photons concerning half the pump frequency, despite different photon colours. We demonstrate that such an interferometer overcomes the classical phase sensitivity limit for wide parametric gain ranges, when up to 3×104 photons are generated.</jats:p>","lang":"eng"}],"date_created":"2023-01-26T13:54:00Z","keyword":["Physics and Astronomy (miscellaneous)","General Mathematics","Chemistry (miscellaneous)","Computer Science (miscellaneous)"],"type":"journal_article","department":[{"_id":"15"},{"_id":"569"},{"_id":"170"},{"_id":"429"},{"_id":"230"},{"_id":"9"},{"_id":"27"}],"title":"Two-Colour Spectrally Multimode Integrated SU(1,1) Interferometer","year":"2022","author":[{"first_name":"Alessandro","last_name":"Ferreri","full_name":"Ferreri, Alessandro"},{"id":"60286","full_name":"Sharapova, Polina R.","last_name":"Sharapova","first_name":"Polina R."}],"publication_identifier":{"issn":["2073-8994"]},"date_updated":"2025-12-16T11:27:11Z","publication_status":"published","intvolume":"        14","article_number":"552","language":[{"iso":"eng"}],"doi":"10.3390/sym14030552","citation":{"short":"A. Ferreri, P.R. Sharapova, Symmetry 14 (2022).","chicago":"Ferreri, Alessandro, and Polina R. Sharapova. “Two-Colour Spectrally Multimode Integrated SU(1,1) Interferometer.” <i>Symmetry</i> 14, no. 3 (2022). <a href=\"https://doi.org/10.3390/sym14030552\">https://doi.org/10.3390/sym14030552</a>.","ieee":"A. Ferreri and P. R. Sharapova, “Two-Colour Spectrally Multimode Integrated SU(1,1) Interferometer,” <i>Symmetry</i>, vol. 14, no. 3, Art. no. 552, 2022, doi: <a href=\"https://doi.org/10.3390/sym14030552\">10.3390/sym14030552</a>.","apa":"Ferreri, A., &#38; Sharapova, P. R. (2022). Two-Colour Spectrally Multimode Integrated SU(1,1) Interferometer. <i>Symmetry</i>, <i>14</i>(3), Article 552. <a href=\"https://doi.org/10.3390/sym14030552\">https://doi.org/10.3390/sym14030552</a>","bibtex":"@article{Ferreri_Sharapova_2022, title={Two-Colour Spectrally Multimode Integrated SU(1,1) Interferometer}, volume={14}, DOI={<a href=\"https://doi.org/10.3390/sym14030552\">10.3390/sym14030552</a>}, number={3552}, journal={Symmetry}, publisher={MDPI AG}, author={Ferreri, Alessandro and Sharapova, Polina R.}, year={2022} }","ama":"Ferreri A, Sharapova PR. Two-Colour Spectrally Multimode Integrated SU(1,1) Interferometer. <i>Symmetry</i>. 2022;14(3). doi:<a href=\"https://doi.org/10.3390/sym14030552\">10.3390/sym14030552</a>","mla":"Ferreri, Alessandro, and Polina R. Sharapova. “Two-Colour Spectrally Multimode Integrated SU(1,1) Interferometer.” <i>Symmetry</i>, vol. 14, no. 3, 552, MDPI AG, 2022, doi:<a href=\"https://doi.org/10.3390/sym14030552\">10.3390/sym14030552</a>."},"project":[{"name":"TRR 142: TRR 142","_id":"53"},{"_id":"56","name":"TRR 142 - C: TRR 142 - Project Area C"},{"name":"TRR 142 - C2: TRR 142 - Subproject C2","_id":"72"},{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"status":"public","publisher":"MDPI AG","_id":"40371","user_id":"16199","volume":14},{"type":"journal_article","keyword":["tet_topic_waveguide"],"department":[{"_id":"61"},{"_id":"230"},{"_id":"429"},{"_id":"15"},{"_id":"569"},{"_id":"170"},{"_id":"287"},{"_id":"35"},{"_id":"34"}],"date_created":"2022-03-07T09:51:50Z","abstract":[{"lang":"eng","text":"Lithium niobate on insulator (LNOI) has a great potential for photonic integrated circuits, providing substantial versatility in design of various integrated components. To properly use these components in the implementation of different quantum protocols, photons with different properties are required. In this paper, we theoretically demonstrate a flexible source of correlated photons built on the LNOI waveguide of a special geometry. This source is based on the parametric down-conversion (PDC) process, in which the signal and idler photons are generated at the telecom wavelength and have different spatial profiles and polarizations, but the same group velocities. Distinguishability in polarizations and spatial profiles facilitates the routing and manipulating individual photons, while the equality of their group velocities leads to the absence of temporal walk-off between photons. We show how the spectral properties of the generated photons and the number of their frequency modes can be controlled depending on the pump characteristics and the waveguide length. Finally, we discuss special regimes, in which narrowband light with strong frequency correlations and polarization-entangled Bell states are generated at the telecom wavelength."}],"related_material":{"link":[{"description":"Corrigendum for table C1","url":"https://doi.org/10.1088/2515-7647/acc70c","relation":"erratum"}]},"publication":"Journal of Physics: Photonics","doi":"10.1088/2515-7647/ac5a5b","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2025-12-16T11:31:04Z","intvolume":"         4","title":"Flexible source of correlated photons based on LNOI rib waveguides","year":"2022","publication_identifier":{"issn":["2515-7647"]},"author":[{"first_name":"Lena","last_name":"Ebers","full_name":"Ebers, Lena","id":"40428"},{"id":"65609","full_name":"Ferreri, Alessandro","first_name":"Alessandro","last_name":"Ferreri"},{"id":"48077","first_name":"Manfred","last_name":"Hammer","orcid":"0000-0002-6331-9348","full_name":"Hammer, Manfred"},{"last_name":"Albert","first_name":"Maximilian","full_name":"Albert, Maximilian"},{"last_name":"Meier","first_name":"Cedrik","orcid":"https://orcid.org/0000-0002-3787-3572","full_name":"Meier, Cedrik","id":"20798"},{"full_name":"Förstner, Jens","first_name":"Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner","id":"158"},{"full_name":"Sharapova, Polina R.","first_name":"Polina R.","last_name":"Sharapova","id":"60286"}],"project":[{"name":"TRR 142 - C: TRR 142 - Project Area C","_id":"56"},{"name":"TRR 142 - C5: TRR 142 - Subproject C5","_id":"75"},{"_id":"72","name":"TRR 142 - C2: TRR 142 - Subproject C2"},{"_id":"53","name":"TRR 142: TRR 142"},{"name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen","_id":"53"}],"citation":{"ama":"Ebers L, Ferreri A, Hammer M, et al. Flexible source of correlated photons based on LNOI rib waveguides. <i>Journal of Physics: Photonics</i>. 2022;4:025001. doi:<a href=\"https://doi.org/10.1088/2515-7647/ac5a5b\">10.1088/2515-7647/ac5a5b</a>","bibtex":"@article{Ebers_Ferreri_Hammer_Albert_Meier_Förstner_Sharapova_2022, title={Flexible source of correlated photons based on LNOI rib waveguides}, volume={4}, DOI={<a href=\"https://doi.org/10.1088/2515-7647/ac5a5b\">10.1088/2515-7647/ac5a5b</a>}, journal={Journal of Physics: Photonics}, publisher={IOP Publishing}, author={Ebers, Lena and Ferreri, Alessandro and Hammer, Manfred and Albert, Maximilian and Meier, Cedrik and Förstner, Jens and Sharapova, Polina R.}, year={2022}, pages={025001} }","mla":"Ebers, Lena, et al. “Flexible Source of Correlated Photons Based on LNOI Rib Waveguides.” <i>Journal of Physics: Photonics</i>, vol. 4, IOP Publishing, 2022, p. 025001, doi:<a href=\"https://doi.org/10.1088/2515-7647/ac5a5b\">10.1088/2515-7647/ac5a5b</a>.","chicago":"Ebers, Lena, Alessandro Ferreri, Manfred Hammer, Maximilian Albert, Cedrik Meier, Jens Förstner, and Polina R. Sharapova. “Flexible Source of Correlated Photons Based on LNOI Rib Waveguides.” <i>Journal of Physics: Photonics</i> 4 (2022): 025001. <a href=\"https://doi.org/10.1088/2515-7647/ac5a5b\">https://doi.org/10.1088/2515-7647/ac5a5b</a>.","short":"L. Ebers, A. Ferreri, M. Hammer, M. Albert, C. Meier, J. Förstner, P.R. Sharapova, Journal of Physics: Photonics 4 (2022) 025001.","apa":"Ebers, L., Ferreri, A., Hammer, M., Albert, M., Meier, C., Förstner, J., &#38; Sharapova, P. R. (2022). Flexible source of correlated photons based on LNOI rib waveguides. <i>Journal of Physics: Photonics</i>, <i>4</i>, 025001. <a href=\"https://doi.org/10.1088/2515-7647/ac5a5b\">https://doi.org/10.1088/2515-7647/ac5a5b</a>","ieee":"L. Ebers <i>et al.</i>, “Flexible source of correlated photons based on LNOI rib waveguides,” <i>Journal of Physics: Photonics</i>, vol. 4, p. 025001, 2022, doi: <a href=\"https://doi.org/10.1088/2515-7647/ac5a5b\">10.1088/2515-7647/ac5a5b</a>."},"user_id":"16199","volume":4,"page":"025001","publisher":"IOP Publishing","_id":"30210","status":"public"},{"project":[{"name":"TRR 142 - C: TRR 142 - Project Area C","_id":"56"},{"_id":"53","name":"TRR 142: TRR 142"}],"citation":{"mla":"Held, Philip, et al. “Driven Gaussian Quantum Walks.” <i>Physical Review A</i>, vol. 105, no. 4, 042210, American Physical Society (APS), 2022, doi:<a href=\"https://doi.org/10.1103/physreva.105.042210\">10.1103/physreva.105.042210</a>.","ama":"Held P, Engelkemeier M, De S, Barkhofen S, Sperling J, Silberhorn C. Driven Gaussian quantum walks. <i>Physical Review A</i>. 2022;105(4). doi:<a href=\"https://doi.org/10.1103/physreva.105.042210\">10.1103/physreva.105.042210</a>","bibtex":"@article{Held_Engelkemeier_De_Barkhofen_Sperling_Silberhorn_2022, title={Driven Gaussian quantum walks}, volume={105}, DOI={<a href=\"https://doi.org/10.1103/physreva.105.042210\">10.1103/physreva.105.042210</a>}, number={4042210}, journal={Physical Review A}, publisher={American Physical Society (APS)}, author={Held, Philip and Engelkemeier, Melanie and De, Syamsundar and Barkhofen, Sonja and Sperling, Jan and Silberhorn, Christine}, year={2022} }","apa":"Held, P., Engelkemeier, M., De, S., Barkhofen, S., Sperling, J., &#38; Silberhorn, C. (2022). Driven Gaussian quantum walks. <i>Physical Review A</i>, <i>105</i>(4), Article 042210. <a href=\"https://doi.org/10.1103/physreva.105.042210\">https://doi.org/10.1103/physreva.105.042210</a>","ieee":"P. Held, M. Engelkemeier, S. De, S. Barkhofen, J. Sperling, and C. Silberhorn, “Driven Gaussian quantum walks,” <i>Physical Review A</i>, vol. 105, no. 4, Art. no. 042210, 2022, doi: <a href=\"https://doi.org/10.1103/physreva.105.042210\">10.1103/physreva.105.042210</a>.","chicago":"Held, Philip, Melanie Engelkemeier, Syamsundar De, Sonja Barkhofen, Jan Sperling, and Christine Silberhorn. “Driven Gaussian Quantum Walks.” <i>Physical Review A</i> 105, no. 4 (2022). <a href=\"https://doi.org/10.1103/physreva.105.042210\">https://doi.org/10.1103/physreva.105.042210</a>.","short":"P. Held, M. Engelkemeier, S. De, S. Barkhofen, J. Sperling, C. Silberhorn, Physical Review A 105 (2022)."},"volume":105,"user_id":"68236","_id":"30921","publisher":"American Physical Society (APS)","status":"public","department":[{"_id":"623"},{"_id":"15"},{"_id":"170"},{"_id":"706"},{"_id":"288"},{"_id":"230"},{"_id":"429"},{"_id":"35"}],"type":"journal_article","date_created":"2022-04-20T06:38:07Z","abstract":[{"text":"Quantum walks function as essential means to implement quantum simulators, allowing one to study complex and often directly inaccessible quantum processes in controllable systems. In this contribution, the notion of a driven Gaussian quantum walk is introduced. In contrast to typically considered quantum walks in optical settings, we describe the operation of the walk in terms of a nonlinear map rather than a unitary operation, e.g., by replacing a beam-splitter-type coin with a two-mode squeezer, being a process that is controlled and driven by a pump field. This opens previously unattainable possibilities for quantum walks that include nonlinear elements as core components of their operation, vastly extending their range of applications. A full framework for driven Gaussian quantum walks is developed, including methods to dynamically characterize nonlinear, quantum, and quantum-nonlinear effects. Moreover, driven Gaussian quantum walks are compared with their classically interfering and linear counterparts, which are based on classical coherence of light rather than quantum superpositions. In particular, the generation and boost of highly multimode entanglement, squeezing, and other quantum effects are studied over the duration of the nonlinear walk. Importantly, we prove the quantumness of the evolution itself, regardless of the input state. A scheme for an experimental realization is proposed. Furthermore, nonlinear properties of driven Gaussian quantum walks are explored, such as amplification that leads to an ever increasing number of correlated quantum particles, constituting a source of new walkers during the walk. Therefore, a concept for quantum walks is proposed that leads to—and even produces—directly accessible quantum phenomena, and that renders the quantum simulation of nonlinear processes possible.","lang":"eng"}],"issue":"4","publication":"Physical Review A","doi":"10.1103/physreva.105.042210","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://journals.aps.org/pra/abstract/10.1103/PhysRevA.105.042210"}],"article_number":"042210","intvolume":"       105","article_type":"original","date_updated":"2026-01-09T09:50:22Z","publication_status":"published","publication_identifier":{"issn":["2469-9926","2469-9934"]},"author":[{"id":"68236","full_name":"Held, Philip","first_name":"Philip","last_name":"Held"},{"last_name":"Engelkemeier","first_name":"Melanie","full_name":"Engelkemeier, Melanie"},{"last_name":"De","first_name":"Syamsundar","full_name":"De, Syamsundar"},{"id":"48188","full_name":"Barkhofen, Sonja","first_name":"Sonja","last_name":"Barkhofen"},{"id":"75127","orcid":"0000-0002-5844-3205","first_name":"Jan","last_name":"Sperling","full_name":"Sperling, Jan"},{"full_name":"Silberhorn, Christine","last_name":"Silberhorn","first_name":"Christine","id":"26263"}],"title":"Driven Gaussian quantum walks","year":"2022"},{"publication_status":"published","date_updated":"2022-01-06T06:54:30Z","article_type":"original","intvolume":"       218","title":"Selective Etching of (111)B-Oriented AlxGa1−xAs-Layers for Epitaxial Lift-Off","year":"2021","author":[{"first_name":"Tobias","last_name":"Henksmeier","full_name":"Henksmeier, Tobias"},{"full_name":"Eppinger, Martin","last_name":"Eppinger","first_name":"Martin"},{"full_name":"Reineke, Bernhard","last_name":"Reineke","first_name":"Bernhard"},{"full_name":"Zentgraf, Thomas","last_name":"Zentgraf","orcid":"0000-0002-8662-1101","first_name":"Thomas","id":"30525"},{"full_name":"Meier, Cedrik","orcid":"https://orcid.org/0000-0002-3787-3572","last_name":"Meier","first_name":"Cedrik","id":"20798"},{"full_name":"Reuter, Dirk","last_name":"Reuter","first_name":"Dirk","id":"37763"}],"doi":"https://doi.org/10.1002/pssa.202000408","main_file_link":[{"open_access":"1","url":"https://onlinelibrary.wiley.com/doi/full/10.1002/pssa.202000408"}],"language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"GaAs-(111)-nanostructures exhibiting second harmonic generation are new building blocks in nonlinear optics. Such structures can be fabricated through epitaxial lift-off using selective etching of Al-containing layers and subsequent transfer to glass substrates. Herein, the selective etching of (111)B-oriented AlxGa1−xAs sacrificial layers (10–50 nm thick) with different aluminum concentrations (x = 0.5–1.0) in 10\\% hydrofluoric acid is investigated and compared with standard (100)-oriented structures. The thinner the sacrificial layer and the lower the aluminum content, the lower the lateral etch rate. For both orientations, the lateral etch rates are in the same order of magnitude, but some quantitative differences exist. Furthermore, the epitaxial lift-off, the transfer, and the nanopatterning of thin (111)B-oriented GaAs membranes are demonstrated. Atomic force microscopy and high-resolution X-ray diffraction measurements reveal the high structural quality of the transferred GaAs-(111) films."}],"issue":"3","publication":"physica status solidi (a)","keyword":["epitaxial lift-off","GaAs/AlxGa1−xAs heterostructures","selective etching"],"type":"journal_article","department":[{"_id":"230"},{"_id":"429"}],"date_created":"2020-12-02T09:50:10Z","status":"public","user_id":"30525","volume":218,"page":"2000408","_id":"20592","project":[{"name":"TRR 142","_id":"53"},{"name":"TRR 142 - Project Area A","_id":"54"},{"name":"TRR 142 - Subproject A6","_id":"63"},{"name":"TRR 142 - Project Area C","_id":"56"},{"name":"TRR 142 - Subproject C5","_id":"75"}],"citation":{"mla":"Henksmeier, Tobias, et al. “Selective Etching of (111)B-Oriented AlxGa1−xAs-Layers for Epitaxial Lift-Off.” <i>Physica Status Solidi (A)</i>, vol. 218, no. 3, 2021, p. 2000408, doi:<a href=\"https://doi.org/10.1002/pssa.202000408\">https://doi.org/10.1002/pssa.202000408</a>.","ama":"Henksmeier T, Eppinger M, Reineke B, Zentgraf T, Meier C, Reuter D. Selective Etching of (111)B-Oriented AlxGa1−xAs-Layers for Epitaxial Lift-Off. <i>physica status solidi (a)</i>. 2021;218(3):2000408. doi:<a href=\"https://doi.org/10.1002/pssa.202000408\">https://doi.org/10.1002/pssa.202000408</a>","bibtex":"@article{Henksmeier_Eppinger_Reineke_Zentgraf_Meier_Reuter_2021, title={Selective Etching of (111)B-Oriented AlxGa1−xAs-Layers for Epitaxial Lift-Off}, volume={218}, DOI={<a href=\"https://doi.org/10.1002/pssa.202000408\">https://doi.org/10.1002/pssa.202000408</a>}, number={3}, journal={physica status solidi (a)}, author={Henksmeier, Tobias and Eppinger, Martin and Reineke, Bernhard and Zentgraf, Thomas and Meier, Cedrik and Reuter, Dirk}, year={2021}, pages={2000408} }","apa":"Henksmeier, T., Eppinger, M., Reineke, B., Zentgraf, T., Meier, C., &#38; Reuter, D. (2021). Selective Etching of (111)B-Oriented AlxGa1−xAs-Layers for Epitaxial Lift-Off. <i>Physica Status Solidi (A)</i>, <i>218</i>(3), 2000408. <a href=\"https://doi.org/10.1002/pssa.202000408\">https://doi.org/10.1002/pssa.202000408</a>","ieee":"T. Henksmeier, M. Eppinger, B. Reineke, T. Zentgraf, C. Meier, and D. Reuter, “Selective Etching of (111)B-Oriented AlxGa1−xAs-Layers for Epitaxial Lift-Off,” <i>physica status solidi (a)</i>, vol. 218, no. 3, p. 2000408, 2021.","short":"T. Henksmeier, M. Eppinger, B. Reineke, T. Zentgraf, C. Meier, D. Reuter, Physica Status Solidi (A) 218 (2021) 2000408.","chicago":"Henksmeier, Tobias, Martin Eppinger, Bernhard Reineke, Thomas Zentgraf, Cedrik Meier, and Dirk Reuter. “Selective Etching of (111)B-Oriented AlxGa1−xAs-Layers for Epitaxial Lift-Off.” <i>Physica Status Solidi (A)</i> 218, no. 3 (2021): 2000408. <a href=\"https://doi.org/10.1002/pssa.202000408\">https://doi.org/10.1002/pssa.202000408</a>."},"oa":"1"},{"publication_status":"published","date_updated":"2022-01-06T06:55:20Z","intvolume":"        38","year":"2021","title":"Resonant evanescent excitation of guided waves with high-order optical angular momentum","author":[{"id":"48077","orcid":"0000-0002-6331-9348","first_name":"Manfred","last_name":"Hammer","full_name":"Hammer, Manfred"},{"full_name":"Ebers, Lena","last_name":"Ebers","first_name":"Lena","id":"40428"},{"full_name":"Förstner, Jens","last_name":"Förstner","first_name":"Jens","orcid":"0000-0001-7059-9862","id":"158"}],"publication_identifier":{"issn":["0740-3224","1520-8540"]},"doi":"10.1364/josab.422731","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Gaussian-beam-like bundles of semi-guided waves propagating in a dielectric slab can excite modes with high-order optical angular momentum supported by a circular fiber. We consider a multimode step-index fiber with a high-index coating, where the waves in the slab are evanescently coupled to the modes of the fiber. Conditions for effective resonant interaction are identified. Based on a hybrid analytical–numerical coupled mode model, our simulations predict that substantial fractions of the input power can be focused into waves with specific orbital angular momentum, of excellent purity, with a clear distinction between degenerate modes with opposite vorticity."}],"issue":"5","publication":"Journal of the Optical Society of America B","type":"journal_article","keyword":["tet_topic_waveguides"],"department":[{"_id":"61"},{"_id":"230"}],"file":[{"date_updated":"2021-04-30T11:57:14Z","relation":"main_file","access_level":"open_access","file_size":1963211,"file_name":"oamex.pdf","content_type":"application/pdf","file_id":"21933","creator":"fossie","date_created":"2021-04-30T11:57:14Z"},{"file_name":"2021-04 Hammer - JOSA B - Resonant evanescent excitation of guides waves with high-order angular momentum.pdf","access_level":"local","embargo_to":"open_access","date_created":"2021-04-30T11:59:16Z","file_size":7750006,"relation":"main_file","embargo":"2022-05-01","date_updated":"2021-04-30T11:59:16Z","file_id":"21934","content_type":"application/pdf","creator":"fossie"}],"date_created":"2021-04-30T11:54:03Z","has_accepted_license":"1","status":"public","user_id":"158","ddc":["530"],"volume":38,"page":"1717","_id":"21932","project":[{"_id":"56","name":"TRR 142 - Project Area C"},{"_id":"53","name":"TRR 142"},{"_id":"75","name":"TRR 142 - Subproject C5"}],"file_date_updated":"2021-04-30T11:59:16Z","citation":{"mla":"Hammer, Manfred, et al. “Resonant Evanescent Excitation of Guided Waves with High-Order Optical Angular Momentum.” <i>Journal of the Optical Society of America B</i>, vol. 38, no. 5, 2021, p. 1717, doi:<a href=\"https://doi.org/10.1364/josab.422731\">10.1364/josab.422731</a>.","bibtex":"@article{Hammer_Ebers_Förstner_2021, title={Resonant evanescent excitation of guided waves with high-order optical angular momentum}, volume={38}, DOI={<a href=\"https://doi.org/10.1364/josab.422731\">10.1364/josab.422731</a>}, number={5}, journal={Journal of the Optical Society of America B}, author={Hammer, Manfred and Ebers, Lena and Förstner, Jens}, year={2021}, pages={1717} }","ama":"Hammer M, Ebers L, Förstner J. Resonant evanescent excitation of guided waves with high-order optical angular momentum. <i>Journal of the Optical Society of America B</i>. 2021;38(5):1717. doi:<a href=\"https://doi.org/10.1364/josab.422731\">10.1364/josab.422731</a>","ieee":"M. Hammer, L. Ebers, and J. Förstner, “Resonant evanescent excitation of guided waves with high-order optical angular momentum,” <i>Journal of the Optical Society of America B</i>, vol. 38, no. 5, p. 1717, 2021.","apa":"Hammer, M., Ebers, L., &#38; Förstner, J. (2021). Resonant evanescent excitation of guided waves with high-order optical angular momentum. <i>Journal of the Optical Society of America B</i>, <i>38</i>(5), 1717. <a href=\"https://doi.org/10.1364/josab.422731\">https://doi.org/10.1364/josab.422731</a>","short":"M. Hammer, L. Ebers, J. Förstner, Journal of the Optical Society of America B 38 (2021) 1717.","chicago":"Hammer, Manfred, Lena Ebers, and Jens Förstner. “Resonant Evanescent Excitation of Guided Waves with High-Order Optical Angular Momentum.” <i>Journal of the Optical Society of America B</i> 38, no. 5 (2021): 1717. <a href=\"https://doi.org/10.1364/josab.422731\">https://doi.org/10.1364/josab.422731</a>."},"oa":"1"},{"date_created":"2021-11-30T20:04:57Z","file":[{"file_id":"28197","content_type":"application/pdf","relation":"main_file","date_updated":"2021-11-30T20:19:15Z","file_name":"2021-11 Hammer - OSA Continuum - Trenches.pdf","file_size":6618403,"access_level":"open_access","date_created":"2021-11-30T20:07:53Z","creator":"fossie"}],"department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"keyword":["tet_topic_waveguide"],"type":"journal_article","publication":"OSA Continuum","issue":"12","abstract":[{"lang":"eng","text":"We show that narrow trenches in a high-contrast silicon-photonics slab can act as lossless power dividers for semi-guided waves. Reflectance and transmittance can be easily configured by selecting the trench width. At sufficiently high angles of incidence, the devices are lossless, apart from material attenuation and scattering due to surface roughness. We numerically simulate a series of devices within the full 0-to-1-range of splitting ratios, for semi-guided plane wave incidence as well as for excitation by focused Gaussian wave bundles. Straightforward cascading of the trenches leads to concepts for 1×M-power dividers and a polarization beam splitter."}],"language":[{"iso":"eng"}],"doi":"10.1364/osac.437549","author":[{"orcid":"0000-0002-6331-9348","first_name":"Manfred","last_name":"Hammer","full_name":"Hammer, Manfred","id":"48077"},{"id":"40428","full_name":"Ebers, Lena","last_name":"Ebers","first_name":"Lena"},{"id":"158","full_name":"Förstner, Jens","last_name":"Förstner","first_name":"Jens","orcid":"0000-0001-7059-9862"}],"publication_identifier":{"issn":["2578-7519"]},"year":"2021","title":"Configurable lossless broadband beam splitters for semi-guided waves in integrated silicon photonics","intvolume":"         4","publication_status":"published","date_updated":"2022-11-18T09:58:03Z","oa":"1","citation":{"ama":"Hammer M, Ebers L, Förstner J. Configurable lossless broadband beam splitters for semi-guided waves in integrated silicon photonics. <i>OSA Continuum</i>. 2021;4(12):3081. doi:<a href=\"https://doi.org/10.1364/osac.437549\">10.1364/osac.437549</a>","bibtex":"@article{Hammer_Ebers_Förstner_2021, title={Configurable lossless broadband beam splitters for semi-guided waves in integrated silicon photonics}, volume={4}, DOI={<a href=\"https://doi.org/10.1364/osac.437549\">10.1364/osac.437549</a>}, number={12}, journal={OSA Continuum}, author={Hammer, Manfred and Ebers, Lena and Förstner, Jens}, year={2021}, pages={3081} }","mla":"Hammer, Manfred, et al. “Configurable Lossless Broadband Beam Splitters for Semi-Guided Waves in Integrated Silicon Photonics.” <i>OSA Continuum</i>, vol. 4, no. 12, 2021, p. 3081, doi:<a href=\"https://doi.org/10.1364/osac.437549\">10.1364/osac.437549</a>.","chicago":"Hammer, Manfred, Lena Ebers, and Jens Förstner. “Configurable Lossless Broadband Beam Splitters for Semi-Guided Waves in Integrated Silicon Photonics.” <i>OSA Continuum</i> 4, no. 12 (2021): 3081. <a href=\"https://doi.org/10.1364/osac.437549\">https://doi.org/10.1364/osac.437549</a>.","short":"M. Hammer, L. Ebers, J. Förstner, OSA Continuum 4 (2021) 3081.","apa":"Hammer, M., Ebers, L., &#38; Förstner, J. (2021). Configurable lossless broadband beam splitters for semi-guided waves in integrated silicon photonics. <i>OSA Continuum</i>, <i>4</i>(12), 3081. <a href=\"https://doi.org/10.1364/osac.437549\">https://doi.org/10.1364/osac.437549</a>","ieee":"M. Hammer, L. Ebers, and J. Förstner, “Configurable lossless broadband beam splitters for semi-guided waves in integrated silicon photonics,” <i>OSA Continuum</i>, vol. 4, no. 12, p. 3081, 2021, doi: <a href=\"https://doi.org/10.1364/osac.437549\">10.1364/osac.437549</a>."},"file_date_updated":"2021-11-30T20:19:15Z","project":[{"name":"TRR 142","_id":"53"},{"name":"TRR 142 - Project Area C","_id":"56"}],"_id":"28196","page":"3081","volume":4,"user_id":"477","ddc":["530"],"status":"public","has_accepted_license":"1"},{"publication":"Optics Express","issue":"10","abstract":[{"text":"We present a combined experimental and numerical study of the far-field emission properties of optical travelling wave antennas made from low-loss dielectric materials. The antennas considered here are composed of two simple building blocks, a director and a reflector, deposited on a glass substrate. Colloidal quantum dots placed in the feed gap between the two elements serve as internal light source. The emission profile of the antenna is mainly formed by the director while the reflector suppresses backward emission. Systematic studies of the director dimensions as well as variation of antenna material show that the effective refractive index of the director primarily governs the far-field emission pattern. Below cut off, i.e., if the director’s effective refractive index is smaller than the refractive index of the substrate, the main lobe results from leaky wave emission along the director. In contrast, if the director supports a guided mode, the emission predominately originates from the end facet of the director.","lang":"eng"}],"date_created":"2021-04-29T06:56:40Z","file":[{"content_type":"application/pdf","success":1,"file_id":"21822","file_size":7464073,"access_level":"closed","file_name":"2021-04 Leuteritz - Optics Express - Dielectric travelling wave antennas.pdf","date_updated":"2021-04-29T06:59:39Z","relation":"main_file","date_created":"2021-04-29T06:59:39Z","creator":"fossie"}],"department":[{"_id":"61"},{"_id":"230"},{"_id":"429"},{"_id":"15"},{"_id":"289"}],"type":"journal_article","keyword":["tet_topic_opticalantenna"],"publication_identifier":{"issn":["1094-4087"]},"author":[{"full_name":"Leuteritz, T.","last_name":"Leuteritz","first_name":"T."},{"id":"53444","orcid":"0000-0001-7730-3489","last_name":"Farheen","first_name":"Henna","full_name":"Farheen, Henna"},{"full_name":"Qiao, S.","last_name":"Qiao","first_name":"S."},{"full_name":"Spreyer, F.","first_name":"F.","last_name":"Spreyer"},{"id":"59792","full_name":"Schlickriede, Christian","last_name":"Schlickriede","first_name":"Christian"},{"orcid":"0000-0002-8662-1101","last_name":"Zentgraf","first_name":"Thomas","full_name":"Zentgraf, Thomas","id":"30525"},{"id":"46371","full_name":"Myroshnychenko, Viktor","last_name":"Myroshnychenko","first_name":"Viktor"},{"last_name":"Förstner","first_name":"Jens","orcid":"0000-0001-7059-9862","full_name":"Förstner, Jens","id":"158"},{"full_name":"Linden, S.","first_name":"S.","last_name":"Linden"}],"title":"Dielectric travelling wave antennas for directional light emission","year":"2021","intvolume":"        29","date_updated":"2024-07-22T07:45:22Z","publication_status":"published","language":[{"iso":"eng"}],"article_number":"14694","doi":"10.1364/oe.422984","citation":{"short":"T. Leuteritz, H. Farheen, S. Qiao, F. Spreyer, C. Schlickriede, T. Zentgraf, V. Myroshnychenko, J. Förstner, S. Linden, Optics Express 29 (2021).","chicago":"Leuteritz, T., Henna Farheen, S. Qiao, F. Spreyer, Christian Schlickriede, Thomas Zentgraf, Viktor Myroshnychenko, Jens Förstner, and S. Linden. “Dielectric Travelling Wave Antennas for Directional Light Emission.” <i>Optics Express</i> 29, no. 10 (2021). <a href=\"https://doi.org/10.1364/oe.422984\">https://doi.org/10.1364/oe.422984</a>.","apa":"Leuteritz, T., Farheen, H., Qiao, S., Spreyer, F., Schlickriede, C., Zentgraf, T., Myroshnychenko, V., Förstner, J., &#38; Linden, S. (2021). Dielectric travelling wave antennas for directional light emission. <i>Optics Express</i>, <i>29</i>(10), Article 14694. <a href=\"https://doi.org/10.1364/oe.422984\">https://doi.org/10.1364/oe.422984</a>","ieee":"T. Leuteritz <i>et al.</i>, “Dielectric travelling wave antennas for directional light emission,” <i>Optics Express</i>, vol. 29, no. 10, Art. no. 14694, 2021, doi: <a href=\"https://doi.org/10.1364/oe.422984\">10.1364/oe.422984</a>.","ama":"Leuteritz T, Farheen H, Qiao S, et al. Dielectric travelling wave antennas for directional light emission. <i>Optics Express</i>. 2021;29(10). doi:<a href=\"https://doi.org/10.1364/oe.422984\">10.1364/oe.422984</a>","bibtex":"@article{Leuteritz_Farheen_Qiao_Spreyer_Schlickriede_Zentgraf_Myroshnychenko_Förstner_Linden_2021, title={Dielectric travelling wave antennas for directional light emission}, volume={29}, DOI={<a href=\"https://doi.org/10.1364/oe.422984\">10.1364/oe.422984</a>}, number={1014694}, journal={Optics Express}, author={Leuteritz, T. and Farheen, Henna and Qiao, S. and Spreyer, F. and Schlickriede, Christian and Zentgraf, Thomas and Myroshnychenko, Viktor and Förstner, Jens and Linden, S.}, year={2021} }","mla":"Leuteritz, T., et al. “Dielectric Travelling Wave Antennas for Directional Light Emission.” <i>Optics Express</i>, vol. 29, no. 10, 14694, 2021, doi:<a href=\"https://doi.org/10.1364/oe.422984\">10.1364/oe.422984</a>."},"file_date_updated":"2021-04-29T06:59:39Z","project":[{"grant_number":"231447078","_id":"53","name":"TRR 142"},{"_id":"56","name":"TRR 142 - Project Area C"},{"name":"TRR 142 - Subproject C5","grant_number":"231447078","_id":"75"}],"status":"public","has_accepted_license":"1","_id":"21821","volume":29,"ddc":["530"],"user_id":"158"},{"doi":"10.1103/physreva.104.043707","user_id":"16199","language":[{"iso":"eng"}],"_id":"26889","date_updated":"2023-04-20T15:08:25Z","publication_status":"published","author":[{"id":"36389","full_name":"Luo, Kai Hong","last_name":"Luo","orcid":"0000-0003-1008-4976","first_name":"Kai Hong"},{"id":"55095","first_name":"Matteo","last_name":"Santandrea","orcid":"0000-0001-5718-358X","full_name":"Santandrea, Matteo"},{"full_name":"Stefszky, Michael","first_name":"Michael","last_name":"Stefszky","id":"42777"},{"orcid":"0000-0002-5844-3205","first_name":"Jan","last_name":"Sperling","full_name":"Sperling, Jan","id":"75127"},{"id":"59545","full_name":"Massaro, Marcello","last_name":"Massaro","first_name":"Marcello","orcid":"0000-0002-2539-7652"},{"last_name":"Ferreri","first_name":"Alessandro","full_name":"Ferreri, Alessandro","id":"65609"},{"last_name":"Sharapova","first_name":"Polina","full_name":"Sharapova, Polina","id":"60286"},{"full_name":"Herrmann, Harald","last_name":"Herrmann","first_name":"Harald","id":"216"},{"id":"26263","full_name":"Silberhorn, Christine","first_name":"Christine","last_name":"Silberhorn"}],"publication_identifier":{"issn":["2469-9926","2469-9934"]},"title":"Quantum optical coherence: From linear to nonlinear interferometers","status":"public","year":"2021","department":[{"_id":"15"},{"_id":"170"},{"_id":"569"},{"_id":"706"},{"_id":"288"},{"_id":"230"},{"_id":"429"},{"_id":"35"}],"type":"journal_article","date_created":"2021-10-26T12:42:16Z","project":[{"name":"TRR 142: TRR 142","_id":"53"},{"name":"TRR 142 - C: TRR 142 - Project Area C","_id":"56"},{"name":"TRR 142 - C2: TRR 142 - Subproject C2","_id":"72"}],"citation":{"short":"K.H. Luo, M. Santandrea, M. Stefszky, J. Sperling, M. Massaro, A. Ferreri, P. Sharapova, H. Herrmann, C. Silberhorn, Physical Review A (2021).","chicago":"Luo, Kai Hong, Matteo Santandrea, Michael Stefszky, Jan Sperling, Marcello Massaro, Alessandro Ferreri, Polina Sharapova, Harald Herrmann, and Christine Silberhorn. “Quantum Optical Coherence: From Linear to Nonlinear Interferometers.” <i>Physical Review A</i>, 2021. <a href=\"https://doi.org/10.1103/physreva.104.043707\">https://doi.org/10.1103/physreva.104.043707</a>.","ieee":"K. H. Luo <i>et al.</i>, “Quantum optical coherence: From linear to nonlinear interferometers,” <i>Physical Review A</i>, 2021, doi: <a href=\"https://doi.org/10.1103/physreva.104.043707\">10.1103/physreva.104.043707</a>.","apa":"Luo, K. H., Santandrea, M., Stefszky, M., Sperling, J., Massaro, M., Ferreri, A., Sharapova, P., Herrmann, H., &#38; Silberhorn, C. (2021). Quantum optical coherence: From linear to nonlinear interferometers. <i>Physical Review A</i>. <a href=\"https://doi.org/10.1103/physreva.104.043707\">https://doi.org/10.1103/physreva.104.043707</a>","bibtex":"@article{Luo_Santandrea_Stefszky_Sperling_Massaro_Ferreri_Sharapova_Herrmann_Silberhorn_2021, title={Quantum optical coherence: From linear to nonlinear interferometers}, DOI={<a href=\"https://doi.org/10.1103/physreva.104.043707\">10.1103/physreva.104.043707</a>}, journal={Physical Review A}, author={Luo, Kai Hong and Santandrea, Matteo and Stefszky, Michael and Sperling, Jan and Massaro, Marcello and Ferreri, Alessandro and Sharapova, Polina and Herrmann, Harald and Silberhorn, Christine}, year={2021} }","ama":"Luo KH, Santandrea M, Stefszky M, et al. Quantum optical coherence: From linear to nonlinear interferometers. <i>Physical Review A</i>. Published online 2021. doi:<a href=\"https://doi.org/10.1103/physreva.104.043707\">10.1103/physreva.104.043707</a>","mla":"Luo, Kai Hong, et al. “Quantum Optical Coherence: From Linear to Nonlinear Interferometers.” <i>Physical Review A</i>, 2021, doi:<a href=\"https://doi.org/10.1103/physreva.104.043707\">10.1103/physreva.104.043707</a>."},"publication":"Physical Review A"},{"publication_status":"published","date_updated":"2023-04-20T14:58:35Z","intvolume":"        29","year":"2021","title":"Bright correlated twin-beam generation and radiation shaping in high-gain parametric down-conversion with anisotropy","publication_identifier":{"issn":["1094-4087"]},"author":[{"full_name":"Riabinin, M.","first_name":"M.","last_name":"Riabinin"},{"id":"60286","full_name":"Sharapova, Polina","first_name":"Polina","last_name":"Sharapova"},{"id":"344","full_name":"Meier, Torsten","last_name":"Meier","first_name":"Torsten","orcid":"0000-0001-8864-2072"}],"doi":"10.1364/oe.424977","language":[{"iso":"eng"}],"abstract":[{"text":"<jats:p>Uniaxial anisotropy in nonlinear birefringent crystals limits the efficiency of nonlinear optical interactions and breaks the spatial symmetry of light generated in the parametric down-conversion (PDC) process. Therefore, this effect is usually undesirable and must be compensated for. However, high gain may be used to overcome the destructive role of anisotropy in order to generate bright two-mode correlated twin-beams. In this work, we provide a rigorous theoretical description of the spatial properties of bright squeezed light in the presence of strong anisotropy. We investigate a single crystal and a system of two crystals with an air gap (corresponding to a nonlinear SU(1,1) interferometer) and demonstrate the generation of bright correlated twin-beams in such configurations at high gain due to anisotropy. We explore the mode structure of the generated light and show how anisotropy, together with crystal spacing, can be used for radiation shaping.</jats:p>","lang":"eng"}],"publication":"Optics Express","issue":"14","type":"journal_article","keyword":["Atomic and Molecular Physics","and Optics"],"department":[{"_id":"15"},{"_id":"569"},{"_id":"170"},{"_id":"293"},{"_id":"230"},{"_id":"35"}],"date_created":"2023-01-18T11:31:53Z","status":"public","user_id":"16199","volume":29,"page":"21876-21890","_id":"37334","publisher":"Optica Publishing Group","project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"name":"TRR 142: TRR 142","_id":"53"},{"name":"TRR 142 - C: TRR 142 - Project Area C","_id":"56"},{"_id":"76","name":"TRR 142 - C6: TRR 142 - Subproject C6"}],"citation":{"chicago":"Riabinin, M., Polina Sharapova, and Torsten Meier. “Bright Correlated Twin-Beam Generation and Radiation Shaping in High-Gain Parametric down-Conversion with Anisotropy.” <i>Optics Express</i> 29, no. 14 (2021): 21876–90. <a href=\"https://doi.org/10.1364/oe.424977\">https://doi.org/10.1364/oe.424977</a>.","short":"M. Riabinin, P. Sharapova, T. Meier, Optics Express 29 (2021) 21876–21890.","ieee":"M. Riabinin, P. Sharapova, and T. Meier, “Bright correlated twin-beam generation and radiation shaping in high-gain parametric down-conversion with anisotropy,” <i>Optics Express</i>, vol. 29, no. 14, pp. 21876–21890, 2021, doi: <a href=\"https://doi.org/10.1364/oe.424977\">10.1364/oe.424977</a>.","apa":"Riabinin, M., Sharapova, P., &#38; Meier, T. (2021). Bright correlated twin-beam generation and radiation shaping in high-gain parametric down-conversion with anisotropy. <i>Optics Express</i>, <i>29</i>(14), 21876–21890. <a href=\"https://doi.org/10.1364/oe.424977\">https://doi.org/10.1364/oe.424977</a>","bibtex":"@article{Riabinin_Sharapova_Meier_2021, title={Bright correlated twin-beam generation and radiation shaping in high-gain parametric down-conversion with anisotropy}, volume={29}, DOI={<a href=\"https://doi.org/10.1364/oe.424977\">10.1364/oe.424977</a>}, number={14}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Riabinin, M. and Sharapova, Polina and Meier, Torsten}, year={2021}, pages={21876–21890} }","ama":"Riabinin M, Sharapova P, Meier T. Bright correlated twin-beam generation and radiation shaping in high-gain parametric down-conversion with anisotropy. <i>Optics Express</i>. 2021;29(14):21876-21890. doi:<a href=\"https://doi.org/10.1364/oe.424977\">10.1364/oe.424977</a>","mla":"Riabinin, M., et al. “Bright Correlated Twin-Beam Generation and Radiation Shaping in High-Gain Parametric down-Conversion with Anisotropy.” <i>Optics Express</i>, vol. 29, no. 14, Optica Publishing Group, 2021, pp. 21876–90, doi:<a href=\"https://doi.org/10.1364/oe.424977\">10.1364/oe.424977</a>."}},{"volume":5,"user_id":"16199","doi":"10.1088/2399-6528/abeec2","language":[{"iso":"eng"}],"_id":"21547","intvolume":"         5","publication_status":"published","date_updated":"2023-04-21T11:15:28Z","publication_identifier":{"issn":["2399-6528"]},"author":[{"full_name":"Riabinin, Matvei","last_name":"Riabinin","first_name":"Matvei"},{"id":"60286","full_name":"Sharapova, Polina","last_name":"Sharapova","first_name":"Polina"},{"id":"49683","last_name":"Bartley","first_name":"Tim","full_name":"Bartley, Tim"},{"id":"344","last_name":"Meier","first_name":"Torsten","orcid":"0000-0001-8864-2072","full_name":"Meier, Torsten"}],"title":"Generating two-mode squeezing with multimode measurement-induced nonlinearity","status":"public","year":"2021","department":[{"_id":"15"},{"_id":"569"},{"_id":"170"},{"_id":"293"},{"_id":"230"},{"_id":"623"},{"_id":"429"},{"_id":"482"},{"_id":"35"}],"type":"journal_article","date_created":"2021-03-22T08:49:03Z","project":[{"_id":"53","name":"TRR 142"},{"_id":"56","name":"TRR 142 - Project Area C"},{"name":"TRR 142 - Subproject C2","_id":"72"},{"_id":"76","name":"TRR 142 - Subproject C6"},{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"citation":{"ama":"Riabinin M, Sharapova P, Bartley T, Meier T. Generating two-mode squeezing with multimode measurement-induced nonlinearity. <i>Journal of Physics Communications</i>. 2021;5(4). doi:<a href=\"https://doi.org/10.1088/2399-6528/abeec2\">10.1088/2399-6528/abeec2</a>","bibtex":"@article{Riabinin_Sharapova_Bartley_Meier_2021, title={Generating two-mode squeezing with multimode measurement-induced nonlinearity}, volume={5}, DOI={<a href=\"https://doi.org/10.1088/2399-6528/abeec2\">10.1088/2399-6528/abeec2</a>}, number={4}, journal={Journal of Physics Communications}, author={Riabinin, Matvei and Sharapova, Polina and Bartley, Tim and Meier, Torsten}, year={2021} }","mla":"Riabinin, Matvei, et al. “Generating Two-Mode Squeezing with Multimode Measurement-Induced Nonlinearity.” <i>Journal of Physics Communications</i>, vol. 5, no. 4, 2021, doi:<a href=\"https://doi.org/10.1088/2399-6528/abeec2\">10.1088/2399-6528/abeec2</a>.","chicago":"Riabinin, Matvei, Polina Sharapova, Tim Bartley, and Torsten Meier. “Generating Two-Mode Squeezing with Multimode Measurement-Induced Nonlinearity.” <i>Journal of Physics Communications</i> 5, no. 4 (2021). <a href=\"https://doi.org/10.1088/2399-6528/abeec2\">https://doi.org/10.1088/2399-6528/abeec2</a>.","short":"M. Riabinin, P. Sharapova, T. Bartley, T. Meier, Journal of Physics Communications 5 (2021).","apa":"Riabinin, M., Sharapova, P., Bartley, T., &#38; Meier, T. (2021). Generating two-mode squeezing with multimode measurement-induced nonlinearity. <i>Journal of Physics Communications</i>, <i>5</i>(4). <a href=\"https://doi.org/10.1088/2399-6528/abeec2\">https://doi.org/10.1088/2399-6528/abeec2</a>","ieee":"M. Riabinin, P. Sharapova, T. Bartley, and T. Meier, “Generating two-mode squeezing with multimode measurement-induced nonlinearity,” <i>Journal of Physics Communications</i>, vol. 5, no. 4, 2021, doi: <a href=\"https://doi.org/10.1088/2399-6528/abeec2\">10.1088/2399-6528/abeec2</a>."},"issue":"4","publication":"Journal of Physics Communications"},{"publication_status":"published","date_updated":"2026-01-16T10:22:10Z","year":"2021","title":"Spectrally multimode integrated SU(1,1) interferometer","status":"public","publication_identifier":{"issn":["2521-327X"]},"author":[{"id":"65609","full_name":"Ferreri, Alessandro","last_name":"Ferreri","first_name":"Alessandro"},{"id":"55095","full_name":"Santandrea, Matteo","orcid":"0000-0001-5718-358X","first_name":"Matteo","last_name":"Santandrea"},{"id":"42777","first_name":"Michael","last_name":"Stefszky","full_name":"Stefszky, Michael"},{"full_name":"Luo, Kai Hong","last_name":"Luo","first_name":"Kai Hong","orcid":"0000-0003-1008-4976","id":"36389"},{"id":"216","last_name":"Herrmann","first_name":"Harald","full_name":"Herrmann, Harald"},{"id":"26263","last_name":"Silberhorn","first_name":"Christine","full_name":"Silberhorn, Christine"},{"last_name":"Sharapova","first_name":"Polina R.","full_name":"Sharapova, Polina R.","id":"60286"}],"user_id":"42777","doi":"10.22331/q-2021-05-27-461","article_number":"461","_id":"26077","language":[{"iso":"eng"}],"abstract":[{"text":"<jats:p>Nonlinear SU(1,1) interferometers are fruitful and promising tools for spectral engineering and precise measurements with phase sensitivity below the classical bound. Such interferometers have been successfully realized in bulk and fiber-based configurations. However, rapidly developing integrated technologies provide higher efficiencies, smaller footprints, and pave the way to quantum-enhanced on-chip interferometry. In this work, we theoretically realised an integrated architecture of the multimode SU(1,1) interferometer which can be applied to various integrated platforms. The presented interferometer includes a polarization converter between two photon sources and utilizes a continuous-wave (CW) pump. Based on the potassium titanyl phosphate (KTP) platform, we show that this configuration results in almost perfect destructive interference at the output and supersensitivity regions below the classical limit. In addition, we discuss the fundamental difference between single-mode and highly multimode SU(1,1) interferometers in the properties of phase sensitivity and its limits. Finally, we explore how to improve the phase sensitivity by filtering the output radiation and using different seeding states in different modes with various detection strategies.</jats:p>","lang":"eng"}],"project":[{"name":"TRR 142 - C: TRR 142 - Project Area C","_id":"56"}],"publication":"Quantum","citation":{"apa":"Ferreri, A., Santandrea, M., Stefszky, M., Luo, K. H., Herrmann, H., Silberhorn, C., &#38; Sharapova, P. R. (2021). Spectrally multimode integrated SU(1,1) interferometer. <i>Quantum</i>, Article 461. <a href=\"https://doi.org/10.22331/q-2021-05-27-461\">https://doi.org/10.22331/q-2021-05-27-461</a>","ieee":"A. Ferreri <i>et al.</i>, “Spectrally multimode integrated SU(1,1) interferometer,” <i>Quantum</i>, Art. no. 461, 2021, doi: <a href=\"https://doi.org/10.22331/q-2021-05-27-461\">10.22331/q-2021-05-27-461</a>.","chicago":"Ferreri, Alessandro, Matteo Santandrea, Michael Stefszky, Kai Hong Luo, Harald Herrmann, Christine Silberhorn, and Polina R. Sharapova. “Spectrally Multimode Integrated SU(1,1) Interferometer.” <i>Quantum</i>, 2021. <a href=\"https://doi.org/10.22331/q-2021-05-27-461\">https://doi.org/10.22331/q-2021-05-27-461</a>.","short":"A. Ferreri, M. Santandrea, M. Stefszky, K.H. Luo, H. Herrmann, C. Silberhorn, P.R. Sharapova, Quantum (2021).","mla":"Ferreri, Alessandro, et al. “Spectrally Multimode Integrated SU(1,1) Interferometer.” <i>Quantum</i>, 461, 2021, doi:<a href=\"https://doi.org/10.22331/q-2021-05-27-461\">10.22331/q-2021-05-27-461</a>.","ama":"Ferreri A, Santandrea M, Stefszky M, et al. Spectrally multimode integrated SU(1,1) interferometer. <i>Quantum</i>. Published online 2021. doi:<a href=\"https://doi.org/10.22331/q-2021-05-27-461\">10.22331/q-2021-05-27-461</a>","bibtex":"@article{Ferreri_Santandrea_Stefszky_Luo_Herrmann_Silberhorn_Sharapova_2021, title={Spectrally multimode integrated SU(1,1) interferometer}, DOI={<a href=\"https://doi.org/10.22331/q-2021-05-27-461\">10.22331/q-2021-05-27-461</a>}, number={461}, journal={Quantum}, author={Ferreri, Alessandro and Santandrea, Matteo and Stefszky, Michael and Luo, Kai Hong and Herrmann, Harald and Silberhorn, Christine and Sharapova, Polina R.}, year={2021} }"},"type":"journal_article","department":[{"_id":"15"},{"_id":"288"}],"date_created":"2021-10-12T08:46:46Z"},{"date_updated":"2025-12-16T11:13:18Z","publication_status":"published","author":[{"last_name":"Ferreri","first_name":"A.","full_name":"Ferreri, A."},{"full_name":"Santandrea, Matteo","last_name":"Santandrea","orcid":"0000-0001-5718-358X","first_name":"Matteo","id":"55095"},{"last_name":"Stefszky","first_name":"Michael","full_name":"Stefszky, Michael","id":"42777"},{"id":"36389","full_name":"Luo, Kai Hong","orcid":"0000-0003-1008-4976","first_name":"Kai Hong","last_name":"Luo"},{"first_name":"Harald","last_name":"Herrmann","full_name":"Herrmann, Harald","id":"216"},{"full_name":"Silberhorn, Christine","last_name":"Silberhorn","first_name":"Christine","id":"26263"},{"id":"60286","last_name":"Sharapova","first_name":"Polina","full_name":"Sharapova, Polina"}],"title":"Multimode integrated SU(1,1) interferometer","year":"2021","status":"public","doi":"10.1364/cleo_qels.2021.ftu1n.6","user_id":"16199","publisher":"Optica Publishing Group","_id":"40374","language":[{"iso":"eng"}],"project":[{"name":"TRR 142: TRR 142","_id":"53"},{"_id":"56","name":"TRR 142 - C: TRR 142 - Project Area C"},{"name":"TRR 142 - C2: TRR 142 - Subproject C2","_id":"72"}],"abstract":[{"lang":"eng","text":"<jats:p>We present a frequency multimode integrated SU (1,1) interferometer with a polarization converter and strong signal-idler photon correlations. Phase sensitivity below the shot noise limit is demonstrated, various filtering and seeding strategies are discussed.</jats:p>"}],"citation":{"bibtex":"@inproceedings{Ferreri_Santandrea_Stefszky_Luo_Herrmann_Silberhorn_Sharapova_2021, title={Multimode integrated SU(1,1) interferometer}, DOI={<a href=\"https://doi.org/10.1364/cleo_qels.2021.ftu1n.6\">10.1364/cleo_qels.2021.ftu1n.6</a>}, booktitle={Conference on Lasers and Electro-Optics}, publisher={Optica Publishing Group}, author={Ferreri, A. and Santandrea, Matteo and Stefszky, Michael and Luo, Kai Hong and Herrmann, Harald and Silberhorn, Christine and Sharapova, Polina}, year={2021} }","ama":"Ferreri A, Santandrea M, Stefszky M, et al. Multimode integrated SU(1,1) interferometer. In: <i>Conference on Lasers and Electro-Optics</i>. Optica Publishing Group; 2021. doi:<a href=\"https://doi.org/10.1364/cleo_qels.2021.ftu1n.6\">10.1364/cleo_qels.2021.ftu1n.6</a>","mla":"Ferreri, A., et al. “Multimode Integrated SU(1,1) Interferometer.” <i>Conference on Lasers and Electro-Optics</i>, Optica Publishing Group, 2021, doi:<a href=\"https://doi.org/10.1364/cleo_qels.2021.ftu1n.6\">10.1364/cleo_qels.2021.ftu1n.6</a>.","chicago":"Ferreri, A., Matteo Santandrea, Michael Stefszky, Kai Hong Luo, Harald Herrmann, Christine Silberhorn, and Polina Sharapova. “Multimode Integrated SU(1,1) Interferometer.” In <i>Conference on Lasers and Electro-Optics</i>. Optica Publishing Group, 2021. <a href=\"https://doi.org/10.1364/cleo_qels.2021.ftu1n.6\">https://doi.org/10.1364/cleo_qels.2021.ftu1n.6</a>.","short":"A. Ferreri, M. Santandrea, M. Stefszky, K.H. Luo, H. Herrmann, C. Silberhorn, P. Sharapova, in: Conference on Lasers and Electro-Optics, Optica Publishing Group, 2021.","ieee":"A. Ferreri <i>et al.</i>, “Multimode integrated SU(1,1) interferometer,” 2021, doi: <a href=\"https://doi.org/10.1364/cleo_qels.2021.ftu1n.6\">10.1364/cleo_qels.2021.ftu1n.6</a>.","apa":"Ferreri, A., Santandrea, M., Stefszky, M., Luo, K. H., Herrmann, H., Silberhorn, C., &#38; Sharapova, P. (2021). Multimode integrated SU(1,1) interferometer. <i>Conference on Lasers and Electro-Optics</i>. <a href=\"https://doi.org/10.1364/cleo_qels.2021.ftu1n.6\">https://doi.org/10.1364/cleo_qels.2021.ftu1n.6</a>"},"publication":"Conference on Lasers and Electro-Optics","department":[{"_id":"15"},{"_id":"569"},{"_id":"170"},{"_id":"230"},{"_id":"288"},{"_id":"429"},{"_id":"35"},{"_id":"429"}],"type":"conference","date_created":"2023-01-26T13:57:47Z"},{"abstract":[{"lang":"eng","text":"A dielectric step-index optical fiber with tube-like profile is considered, being positioned with a small gap on top of a dielectric slab waveguide. We propose a 2.5-D hybrid analytical/numerical coupled mode model for the evanescent excitation of the tube through semi-guided waves propagating in the slab at oblique angles. The model combines the directional polarized modes supported by the slab with analytic solutions for the TE-, TM-, and orbital-angular-momentum (OAM) modes of the tube-shaped fiber. Implementational details of the scheme are discussed, complemented by finite-element simulations for verification purposes. Our results include configurations with resonant in-fiber excitation of OAM modes with large orbital angular momentum and strong field enhancement."}],"publication":"Optical and Quantum Electronics","keyword":["tet_topic_waveguides"],"type":"journal_article","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"file":[{"date_created":"2020-10-24T08:11:40Z","creator":"fossie","content_type":"application/pdf","success":1,"file_id":"20190","access_level":"closed","file_size":2212769,"file_name":"2020-10 Hammer - OQE - Hybrid Coupled Mode Modelling Dielectric Tube.pdf","date_updated":"2020-10-24T08:11:40Z","relation":"main_file"}],"date_created":"2020-10-24T08:03:58Z","date_updated":"2022-01-06T06:54:22Z","publication_status":"published","intvolume":"        52","title":"Hybrid coupled mode modelling of the evanescent excitation of a dielectric tube by semi-guided waves at oblique angles","year":"2020","publication_identifier":{"issn":["0306-8919","1572-817X"]},"author":[{"full_name":"Hammer, Manfred","first_name":"Manfred","last_name":"Hammer","orcid":"0000-0002-6331-9348","id":"48077"},{"id":"40428","full_name":"Ebers, Lena","last_name":"Ebers","first_name":"Lena"},{"id":"158","first_name":"Jens","last_name":"Förstner","orcid":"0000-0001-7059-9862","full_name":"Förstner, Jens"}],"doi":"10.1007/s11082-020-02595-z","article_number":"472","language":[{"iso":"eng"}],"project":[{"_id":"56","name":"TRR 142 - Project Area C"},{"name":"TRR 142 - Subproject C5","_id":"75"},{"_id":"53","name":"TRR 142"}],"file_date_updated":"2020-10-24T08:11:40Z","citation":{"short":"M. Hammer, L. Ebers, J. Förstner, Optical and Quantum Electronics 52 (2020).","chicago":"Hammer, Manfred, Lena Ebers, and Jens Förstner. “Hybrid Coupled Mode Modelling of the Evanescent Excitation of a Dielectric Tube by Semi-Guided Waves at Oblique Angles.” <i>Optical and Quantum Electronics</i> 52 (2020). <a href=\"https://doi.org/10.1007/s11082-020-02595-z\">https://doi.org/10.1007/s11082-020-02595-z</a>.","ieee":"M. Hammer, L. Ebers, and J. Förstner, “Hybrid coupled mode modelling of the evanescent excitation of a dielectric tube by semi-guided waves at oblique angles,” <i>Optical and Quantum Electronics</i>, vol. 52, 2020.","apa":"Hammer, M., Ebers, L., &#38; Förstner, J. (2020). Hybrid coupled mode modelling of the evanescent excitation of a dielectric tube by semi-guided waves at oblique angles. <i>Optical and Quantum Electronics</i>, <i>52</i>. <a href=\"https://doi.org/10.1007/s11082-020-02595-z\">https://doi.org/10.1007/s11082-020-02595-z</a>","bibtex":"@article{Hammer_Ebers_Förstner_2020, title={Hybrid coupled mode modelling of the evanescent excitation of a dielectric tube by semi-guided waves at oblique angles}, volume={52}, DOI={<a href=\"https://doi.org/10.1007/s11082-020-02595-z\">10.1007/s11082-020-02595-z</a>}, number={472}, journal={Optical and Quantum Electronics}, author={Hammer, Manfred and Ebers, Lena and Förstner, Jens}, year={2020} }","ama":"Hammer M, Ebers L, Förstner J. Hybrid coupled mode modelling of the evanescent excitation of a dielectric tube by semi-guided waves at oblique angles. <i>Optical and Quantum Electronics</i>. 2020;52. doi:<a href=\"https://doi.org/10.1007/s11082-020-02595-z\">10.1007/s11082-020-02595-z</a>","mla":"Hammer, Manfred, et al. “Hybrid Coupled Mode Modelling of the Evanescent Excitation of a Dielectric Tube by Semi-Guided Waves at Oblique Angles.” <i>Optical and Quantum Electronics</i>, vol. 52, 472, 2020, doi:<a href=\"https://doi.org/10.1007/s11082-020-02595-z\">10.1007/s11082-020-02595-z</a>."},"has_accepted_license":"1","status":"public","ddc":["530"],"user_id":"158","volume":52,"_id":"20189"},{"keyword":["tet_topic_waveguides"],"type":"journal_article","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"date_created":"2020-11-17T09:52:47Z","abstract":[{"lang":"eng","text":"A stepwise angular spectrum method (SASM) for curved interfaces is presented to calculate the wave propagation in planar lens-like integrated optical structures based on photonic slab waveguides. The method is derived and illustrated for an effective 2D setup first and then for 3D slab waveguide lenses. We employ slab waveguides of different thicknesses connected by curved surfaces to realize a lens-like structure. To simulate the wave propagation in 3D including reflection and scattering losses, the stepwise angular spectrum method is combined with full vectorial finite element computations for subproblems with lower complexity. Our SASM results show excellent agreement with rigorous numerical simulations of the full structures with a substantially lower computational effort and can be utilized for the simulation-based design and optimization of complex and large scale setups."}],"issue":"24","publication":"Optics Express","doi":"10.1364/oe.409612","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2022-01-06T06:54:26Z","intvolume":"        28","title":"Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method","year":"2020","publication_identifier":{"issn":["1094-4087"]},"author":[{"first_name":"Lena","last_name":"Ebers","full_name":"Ebers, Lena","id":"40428"},{"id":"48077","full_name":"Hammer, Manfred","first_name":"Manfred","orcid":"0000-0002-6331-9348","last_name":"Hammer"},{"last_name":"Förstner","orcid":"0000-0001-7059-9862","first_name":"Jens","full_name":"Förstner, Jens","id":"158"}],"project":[{"_id":"53","name":"TRR 142"},{"name":"TRR 142 - Project Area C","_id":"56"},{"name":"TRR 142 - Subproject C4","_id":"74"},{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"citation":{"ieee":"L. Ebers, M. Hammer, and J. Förstner, “Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method,” <i>Optics Express</i>, vol. 28, no. 24, p. 36361, 2020.","apa":"Ebers, L., Hammer, M., &#38; Förstner, J. (2020). Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method. <i>Optics Express</i>, <i>28</i>(24), 36361. <a href=\"https://doi.org/10.1364/oe.409612\">https://doi.org/10.1364/oe.409612</a>","chicago":"Ebers, Lena, Manfred Hammer, and Jens Förstner. “Light Diffraction in Slab Waveguide Lenses Simulated with the Stepwise Angular Spectrum Method.” <i>Optics Express</i> 28, no. 24 (2020): 36361. <a href=\"https://doi.org/10.1364/oe.409612\">https://doi.org/10.1364/oe.409612</a>.","short":"L. Ebers, M. Hammer, J. Förstner, Optics Express 28 (2020) 36361.","mla":"Ebers, Lena, et al. “Light Diffraction in Slab Waveguide Lenses Simulated with the Stepwise Angular Spectrum Method.” <i>Optics Express</i>, vol. 28, no. 24, 2020, p. 36361, doi:<a href=\"https://doi.org/10.1364/oe.409612\">10.1364/oe.409612</a>.","bibtex":"@article{Ebers_Hammer_Förstner_2020, title={Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method}, volume={28}, DOI={<a href=\"https://doi.org/10.1364/oe.409612\">10.1364/oe.409612</a>}, number={24}, journal={Optics Express}, author={Ebers, Lena and Hammer, Manfred and Förstner, Jens}, year={2020}, pages={36361} }","ama":"Ebers L, Hammer M, Förstner J. Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method. <i>Optics Express</i>. 2020;28(24):36361. doi:<a href=\"https://doi.org/10.1364/oe.409612\">10.1364/oe.409612</a>"},"user_id":"158","volume":28,"page":"36361","_id":"20372","status":"public"}]