[{"ddc":["530"],"keyword":["tet_topic_waveguide"],"language":[{"iso":"eng"}],"abstract":[{"text":"Lateral leakage of TM modes in dielectric optical waveguides of rib/ridge or strip-loaded types can be fully suppressed, if the waveguide core is formed not through a strip that protrudes at one side (up) from the remaining lateral guiding slab, but through parallel strips on both sides (up and down), such that the resulting cross section becomes vertically symmetric. The fairly general arguments underlying the leakage suppression apply to TM modes of all orders simultaneously, and are independent of wavelength. These plus-shaped waveguides support strictly guided, non-leaky TM modes for, in principle, arbitrarily shallow etching.","lang":"eng"}],"file":[{"relation":"main_file","content_type":"application/pdf","file_name":"2024-08 Farheen - JOSA B - Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching.pdf","access_level":"local","file_id":"55752","file_size":920206,"date_created":"2024-08-25T10:30:28Z","creator":"fossie","date_updated":"2024-08-25T10:30:28Z"},{"relation":"main_file","content_type":"application/pdf","access_level":"open_access","file_name":"2024-08 Farheen - JOSA B - Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching (preprint).pdf","file_id":"55753","file_size":931810,"title":"(preprint)","date_created":"2024-08-25T10:48:05Z","creator":"fossie","date_updated":"2024-08-25T10:48:05Z"}],"publication":"Journal of the Optical Society of America B","title":"Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching","publisher":"Optica Publishing Group","date_created":"2024-08-25T10:24:58Z","year":"2024","issue":"9","article_type":"original","file_date_updated":"2024-08-25T10:48:05Z","project":[{"name":"PhoQC: PhoQC: Photonisches Quantencomputing","_id":"266","grant_number":"PROFILNRW-2020-067"},{"_id":"167","name":"TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle eines photonischen Quantensystems (B06*)","grant_number":"231447078"}],"_id":"55751","user_id":"158","department":[{"_id":"61"},{"_id":"429"}],"status":"public","type":"journal_article","doi":"10.1364/josab.528729","date_updated":"2024-08-25T10:48:42Z","oa":"1","author":[{"last_name":"Üstün","full_name":"Üstün, Necati","first_name":"Necati"},{"id":"53444","full_name":"Farheen, Henna","last_name":"Farheen","orcid":"0000-0001-7730-3489","first_name":"Henna"},{"first_name":"Manfred","id":"48077","full_name":"Hammer, Manfred","orcid":"0000-0002-6331-9348","last_name":"Hammer"},{"first_name":"Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner","full_name":"Förstner, Jens","id":"158"}],"volume":41,"citation":{"short":"N. Üstün, H. Farheen, M. Hammer, J. Förstner, Journal of the Optical Society of America B 41 (2024) 2077.","mla":"Üstün, Necati, et al. “Symmetry-Protected TM Modes in Rib-like, plus-Shaped Optical Waveguides with Shallow Etching.” <i>Journal of the Optical Society of America B</i>, vol. 41, no. 9, Optica Publishing Group, 2024, p. 2077, doi:<a href=\"https://doi.org/10.1364/josab.528729\">10.1364/josab.528729</a>.","bibtex":"@article{Üstün_Farheen_Hammer_Förstner_2024, title={Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching}, volume={41}, DOI={<a href=\"https://doi.org/10.1364/josab.528729\">10.1364/josab.528729</a>}, number={9}, journal={Journal of the Optical Society of America B}, publisher={Optica Publishing Group}, author={Üstün, Necati and Farheen, Henna and Hammer, Manfred and Förstner, Jens}, year={2024}, pages={2077} }","apa":"Üstün, N., Farheen, H., Hammer, M., &#38; Förstner, J. (2024). Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching. <i>Journal of the Optical Society of America B</i>, <i>41</i>(9), 2077. <a href=\"https://doi.org/10.1364/josab.528729\">https://doi.org/10.1364/josab.528729</a>","ama":"Üstün N, Farheen H, Hammer M, Förstner J. Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching. <i>Journal of the Optical Society of America B</i>. 2024;41(9):2077. doi:<a href=\"https://doi.org/10.1364/josab.528729\">10.1364/josab.528729</a>","chicago":"Üstün, Necati, Henna Farheen, Manfred Hammer, and Jens Förstner. “Symmetry-Protected TM Modes in Rib-like, plus-Shaped Optical Waveguides with Shallow Etching.” <i>Journal of the Optical Society of America B</i> 41, no. 9 (2024): 2077. <a href=\"https://doi.org/10.1364/josab.528729\">https://doi.org/10.1364/josab.528729</a>.","ieee":"N. Üstün, H. Farheen, M. Hammer, and J. Förstner, “Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching,” <i>Journal of the Optical Society of America B</i>, vol. 41, no. 9, p. 2077, 2024, doi: <a href=\"https://doi.org/10.1364/josab.528729\">10.1364/josab.528729</a>."},"page":"2077","intvolume":"        41","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["0740-3224","1520-8540"]}},{"author":[{"first_name":"Bertram","last_name":"Schwind","full_name":"Schwind, Bertram"},{"first_name":"Xia","last_name":"Wu","full_name":"Wu, Xia"},{"first_name":"Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","id":"23547","full_name":"Tiemann, Michael"},{"full_name":"Fabritius, Helge-Otto","last_name":"Fabritius","first_name":"Helge-Otto"}],"volume":40,"date_updated":"2024-05-22T14:29:39Z","doi":"10.1364/josab.474899","publication_status":"published","publication_identifier":{"issn":["0740-3224","1520-8540"]},"citation":{"chicago":"Schwind, Bertram, Xia Wu, Michael Tiemann, and Helge-Otto Fabritius. “Broadband Mie Scattering Effects by Structural Features of Setae from the Saharan Silver Ant Cataglyphis Bombycina.” <i>Journal of the Optical Society of America B</i> 40, no. 3 (2023): B49–58. <a href=\"https://doi.org/10.1364/josab.474899\">https://doi.org/10.1364/josab.474899</a>.","ieee":"B. Schwind, X. Wu, M. Tiemann, and H.-O. Fabritius, “Broadband Mie scattering effects by structural features of setae from the Saharan silver ant Cataglyphis bombycina,” <i>Journal of the Optical Society of America B</i>, vol. 40, no. 3, pp. B49–B58, 2023, doi: <a href=\"https://doi.org/10.1364/josab.474899\">10.1364/josab.474899</a>.","ama":"Schwind B, Wu X, Tiemann M, Fabritius H-O. Broadband Mie scattering effects by structural features of setae from the Saharan silver ant Cataglyphis bombycina. <i>Journal of the Optical Society of America B</i>. 2023;40(3):B49-B58. doi:<a href=\"https://doi.org/10.1364/josab.474899\">10.1364/josab.474899</a>","apa":"Schwind, B., Wu, X., Tiemann, M., &#38; Fabritius, H.-O. (2023). Broadband Mie scattering effects by structural features of setae from the Saharan silver ant Cataglyphis bombycina. <i>Journal of the Optical Society of America B</i>, <i>40</i>(3), B49–B58. <a href=\"https://doi.org/10.1364/josab.474899\">https://doi.org/10.1364/josab.474899</a>","mla":"Schwind, Bertram, et al. “Broadband Mie Scattering Effects by Structural Features of Setae from the Saharan Silver Ant Cataglyphis Bombycina.” <i>Journal of the Optical Society of America B</i>, vol. 40, no. 3, Optica Publishing Group, 2023, pp. B49–58, doi:<a href=\"https://doi.org/10.1364/josab.474899\">10.1364/josab.474899</a>.","bibtex":"@article{Schwind_Wu_Tiemann_Fabritius_2023, title={Broadband Mie scattering effects by structural features of setae from the Saharan silver ant Cataglyphis bombycina}, volume={40}, DOI={<a href=\"https://doi.org/10.1364/josab.474899\">10.1364/josab.474899</a>}, number={3}, journal={Journal of the Optical Society of America B}, publisher={Optica Publishing Group}, author={Schwind, Bertram and Wu, Xia and Tiemann, Michael and Fabritius, Helge-Otto}, year={2023}, pages={B49–B58} }","short":"B. Schwind, X. Wu, M. Tiemann, H.-O. Fabritius, Journal of the Optical Society of America B 40 (2023) B49–B58."},"page":"B49 - B58","intvolume":"        40","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"},{"_id":"230"}],"_id":"42679","article_type":"original","type":"journal_article","status":"public","date_created":"2023-03-02T17:48:38Z","publisher":"Optica Publishing Group","title":"Broadband Mie scattering effects by structural features of setae from the Saharan silver ant Cataglyphis bombycina","issue":"3","quality_controlled":"1","year":"2023","language":[{"iso":"eng"}],"keyword":["Atomic and Molecular Physics","and Optics","Statistical and Nonlinear Physics"],"publication":"Journal of the Optical Society of America B","abstract":[{"lang":"eng","text":"The Saharan desert ant Cataglyphis bombycina is densely covered with shiny silver setae (hair-like structures). Their appearance was explained by geometric optics and total internal reflection. The setae also increase the emissivity of the ant, as they form an effective medium. This work provides additional data on microstructural details of the setae that are used to simulate the scattering of an individual seta to explain their influence on the optical properties. This is achieved by characterization of their structure using light microscopy and scanning/transmission electron microscopy. How the microstructural features influence scattering is investigated wave-optically within the limits of finite-difference time-domain simulations from the ultraviolet to the mid-infrared spectral range to elucidate the optical effects beyond ray optics and effective medium theory. The results show that Mie scattering plays an important role in protecting the ant from solar radiation and could be relevant for its thermal tolerance."}]},{"language":[{"iso":"eng"}],"ddc":["530"],"keyword":["tet_topic_waveguide"],"publication":"Journal of the Optical Society of America B","file":[{"file_name":"ogr-afterreview.pdf","file_id":"43247","access_level":"open_access","file_size":1982311,"date_created":"2023-03-31T13:14:59Z","creator":"fossie","date_updated":"2023-03-31T13:14:59Z","relation":"main_file","content_type":"application/pdf"}],"abstract":[{"text":"High-contrast slab waveguide Bragg gratings with 1D periodicity are investigated. For specific oblique excitation by semi-guided waves at sufficiently high angles of incidence, the idealized structures do not exhibit any radiative losses, such that reflectance and transmittance for the single port mode add strictly up to one. We consider a series of symmetric, fully and partly etched finite gratings, for parameters found in integrated silicon photonics. These can act as spectral filters with a reasonably flattop response. Apodization can lead to more box shaped reflectance and transmittance spectra. Together with a narrowband Fabry–Perot filter, these configurations are characterized by reflection bands, or transmittance peaks, with widths that span three orders of magnitude.","lang":"eng"}],"date_created":"2023-03-31T13:04:43Z","publisher":"Optica Publishing Group","title":"How to suppress radiative losses in high-contrast integrated Bragg gratings","issue":"4","year":"2023","user_id":"158","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"project":[{"grant_number":"231447078","name":"TRR 142: TRR 142","_id":"53"},{"name":"TRR 142 - B: TRR 142 - Project Area B","_id":"55"},{"_id":"167","name":"TRR 142 - B06: TRR 142 - Subproject B06","grant_number":"231447078"}],"_id":"43245","file_date_updated":"2023-03-31T13:14:59Z","type":"journal_article","status":"public","author":[{"first_name":"Manfred","last_name":"Hammer","orcid":"0000-0002-6331-9348","full_name":"Hammer, Manfred","id":"48077"},{"id":"53444","full_name":"Farheen, Henna","orcid":"0000-0001-7730-3489","last_name":"Farheen","first_name":"Henna"},{"last_name":"Förstner","orcid":"0000-0001-7059-9862","id":"158","full_name":"Förstner, Jens","first_name":"Jens"}],"volume":40,"oa":"1","date_updated":"2024-07-22T07:44:38Z","doi":"10.1364/josab.485725","publication_status":"published","publication_identifier":{"issn":["0740-3224","1520-8540"]},"has_accepted_license":"1","citation":{"bibtex":"@article{Hammer_Farheen_Förstner_2023, title={How to suppress radiative losses in high-contrast integrated Bragg gratings}, volume={40}, DOI={<a href=\"https://doi.org/10.1364/josab.485725\">10.1364/josab.485725</a>}, number={4}, journal={Journal of the Optical Society of America B}, publisher={Optica Publishing Group}, author={Hammer, Manfred and Farheen, Henna and Förstner, Jens}, year={2023}, pages={862} }","mla":"Hammer, Manfred, et al. “How to Suppress Radiative Losses in High-Contrast Integrated Bragg Gratings.” <i>Journal of the Optical Society of America B</i>, vol. 40, no. 4, Optica Publishing Group, 2023, p. 862, doi:<a href=\"https://doi.org/10.1364/josab.485725\">10.1364/josab.485725</a>.","short":"M. Hammer, H. Farheen, J. Förstner, Journal of the Optical Society of America B 40 (2023) 862.","apa":"Hammer, M., Farheen, H., &#38; Förstner, J. (2023). How to suppress radiative losses in high-contrast integrated Bragg gratings. <i>Journal of the Optical Society of America B</i>, <i>40</i>(4), 862. <a href=\"https://doi.org/10.1364/josab.485725\">https://doi.org/10.1364/josab.485725</a>","ama":"Hammer M, Farheen H, Förstner J. How to suppress radiative losses in high-contrast integrated Bragg gratings. <i>Journal of the Optical Society of America B</i>. 2023;40(4):862. doi:<a href=\"https://doi.org/10.1364/josab.485725\">10.1364/josab.485725</a>","chicago":"Hammer, Manfred, Henna Farheen, and Jens Förstner. “How to Suppress Radiative Losses in High-Contrast Integrated Bragg Gratings.” <i>Journal of the Optical Society of America B</i> 40, no. 4 (2023): 862. <a href=\"https://doi.org/10.1364/josab.485725\">https://doi.org/10.1364/josab.485725</a>.","ieee":"M. Hammer, H. Farheen, and J. Förstner, “How to suppress radiative losses in high-contrast integrated Bragg gratings,” <i>Journal of the Optical Society of America B</i>, vol. 40, no. 4, p. 862, 2023, doi: <a href=\"https://doi.org/10.1364/josab.485725\">10.1364/josab.485725</a>."},"page":"862","intvolume":"        40"},{"keyword":["tet_topic_opticalantenna"],"ddc":["530"],"language":[{"iso":"eng"}],"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":[{"file_size":14029741,"embargo":"2022-12-08","access_level":"local","file_id":"28417","file_name":"2021-12 Farheen - JOSA B - Optimization of optical nanoantennas.pdf","date_updated":"2021-12-08T08:26:57Z","date_created":"2021-12-08T08:26:57Z","creator":"fossie","relation":"main_file","embargo_to":"open_access","content_type":"application/pdf"},{"date_updated":"2021-12-08T08:29:49Z","creator":"fossie","date_created":"2021-12-08T08:29:49Z","file_size":655495,"file_name":"2021-12 Farheen - JOSA B - Optimization of optical nanoantennas SUPPLEMENTARY MATERIAL.pdf","file_id":"28418","access_level":"open_access","content_type":"application/pdf","relation":"supplementary_material"}],"publication":"Journal of the Optical Society of America B","title":"Optimization of optical waveguide antennas for directive emission of light","date_created":"2021-12-08T07:14:39Z","year":"2022","issue":"1","file_date_updated":"2021-12-08T08:29:49Z","_id":"28413","project":[{"grant_number":"231447078","_id":"53","name":"TRR 142"},{"_id":"56","name":"TRR 142 - Project Area C"},{"_id":"75","name":"TRR 142 - Subproject C5","grant_number":"231447078"},{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"user_id":"158","status":"public","type":"journal_article","doi":"10.1364/josab.438514","date_updated":"2024-07-22T07:45:12Z","oa":"1","volume":39,"author":[{"id":"53444","full_name":"Farheen, Henna","orcid":"0000-0001-7730-3489","last_name":"Farheen","first_name":"Henna"},{"first_name":"Till","full_name":"Leuteritz, Till","last_name":"Leuteritz"},{"full_name":"Linden, Stefan","last_name":"Linden","first_name":"Stefan"},{"first_name":"Viktor","last_name":"Myroshnychenko","full_name":"Myroshnychenko, Viktor","id":"46371"},{"first_name":"Jens","last_name":"Förstner","orcid":"0000-0001-7059-9862","full_name":"Förstner, Jens","id":"158"}],"page":"83","intvolume":"        39","citation":{"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>.","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>.","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>","short":"H. Farheen, T. Leuteritz, S. Linden, V. Myroshnychenko, J. Förstner, Journal of the Optical Society of America B 39 (2022) 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>.","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} }","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>"},"has_accepted_license":"1","publication_identifier":{"issn":["0740-3224","1520-8540"]},"publication_status":"published"},{"year":"2021","issue":"5","title":"Resonant evanescent excitation of guided waves with high-order optical angular momentum","date_created":"2021-04-30T11:54:03Z","file":[{"relation":"main_file","content_type":"application/pdf","file_size":1963211,"file_id":"21933","access_level":"open_access","file_name":"oamex.pdf","date_updated":"2021-04-30T11:57:14Z","creator":"fossie","date_created":"2021-04-30T11:57:14Z"},{"content_type":"application/pdf","embargo_to":"open_access","relation":"main_file","date_created":"2021-04-30T11:59:16Z","creator":"fossie","date_updated":"2021-04-30T11:59:16Z","access_level":"local","file_id":"21934","embargo":"2022-05-01","file_name":"2021-04 Hammer - JOSA B - Resonant evanescent excitation of guides waves with high-order angular momentum.pdf","file_size":7750006}],"abstract":[{"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.","lang":"eng"}],"publication":"Journal of the Optical Society of America B","language":[{"iso":"eng"}],"ddc":["530"],"keyword":["tet_topic_waveguides"],"citation":{"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>","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} }","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>.","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.","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>"},"intvolume":"        38","page":"1717","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["0740-3224","1520-8540"]},"doi":"10.1364/josab.422731","author":[{"first_name":"Manfred","last_name":"Hammer","orcid":"0000-0002-6331-9348","id":"48077","full_name":"Hammer, Manfred"},{"last_name":"Ebers","id":"40428","full_name":"Ebers, Lena","first_name":"Lena"},{"first_name":"Jens","last_name":"Förstner","orcid":"0000-0001-7059-9862","id":"158","full_name":"Förstner, Jens"}],"volume":38,"date_updated":"2022-01-06T06:55:20Z","oa":"1","status":"public","type":"journal_article","file_date_updated":"2021-04-30T11:59:16Z","user_id":"158","department":[{"_id":"61"},{"_id":"230"}],"project":[{"name":"TRR 142 - Project Area C","_id":"56"},{"_id":"53","name":"TRR 142"},{"name":"TRR 142 - Subproject C5","_id":"75"}],"_id":"21932"},{"status":"public","type":"journal_article","file_date_updated":"2019-08-09T07:09:04Z","project":[{"_id":"53","name":"TRR 142"},{"name":"TRR 142 - Project Area C","_id":"56"},{"_id":"75","name":"TRR 142 - Subproject C5"}],"_id":"12908","user_id":"158","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"citation":{"ama":"Hammer M, Ebers L, Förstner J. Oblique quasi-lossless excitation of a thin silicon slab waveguide: a guided-wave variant of an anti-reflection coating. <i>Journal of the Optical Society of America B</i>. 2019;36:2395. doi:<a href=\"https://doi.org/10.1364/josab.36.002395\">10.1364/josab.36.002395</a>","ieee":"M. Hammer, L. Ebers, and J. Förstner, “Oblique quasi-lossless excitation of a thin silicon slab waveguide: a guided-wave variant of an anti-reflection coating,” <i>Journal of the Optical Society of America B</i>, vol. 36, p. 2395, 2019.","chicago":"Hammer, Manfred, Lena Ebers, and Jens Förstner. “Oblique Quasi-Lossless Excitation of a Thin Silicon Slab Waveguide: A Guided-Wave Variant of an Anti-Reflection Coating.” <i>Journal of the Optical Society of America B</i> 36 (2019): 2395. <a href=\"https://doi.org/10.1364/josab.36.002395\">https://doi.org/10.1364/josab.36.002395</a>.","apa":"Hammer, M., Ebers, L., &#38; Förstner, J. (2019). Oblique quasi-lossless excitation of a thin silicon slab waveguide: a guided-wave variant of an anti-reflection coating. <i>Journal of the Optical Society of America B</i>, <i>36</i>, 2395. <a href=\"https://doi.org/10.1364/josab.36.002395\">https://doi.org/10.1364/josab.36.002395</a>","mla":"Hammer, Manfred, et al. “Oblique Quasi-Lossless Excitation of a Thin Silicon Slab Waveguide: A Guided-Wave Variant of an Anti-Reflection Coating.” <i>Journal of the Optical Society of America B</i>, vol. 36, 2019, p. 2395, doi:<a href=\"https://doi.org/10.1364/josab.36.002395\">10.1364/josab.36.002395</a>.","short":"M. Hammer, L. Ebers, J. Förstner, Journal of the Optical Society of America B 36 (2019) 2395.","bibtex":"@article{Hammer_Ebers_Förstner_2019, title={Oblique quasi-lossless excitation of a thin silicon slab waveguide: a guided-wave variant of an anti-reflection coating}, volume={36}, DOI={<a href=\"https://doi.org/10.1364/josab.36.002395\">10.1364/josab.36.002395</a>}, journal={Journal of the Optical Society of America B}, author={Hammer, Manfred and Ebers, Lena and Förstner, Jens}, year={2019}, pages={2395} }"},"page":"2395","intvolume":"        36","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["0740-3224","1520-8540"]},"doi":"10.1364/josab.36.002395","oa":"1","date_updated":"2022-01-06T06:51:24Z","author":[{"first_name":"Manfred","id":"48077","full_name":"Hammer, Manfred","orcid":"0000-0002-6331-9348","last_name":"Hammer"},{"full_name":"Ebers, Lena","id":"40428","last_name":"Ebers","first_name":"Lena"},{"orcid":"0000-0001-7059-9862","last_name":"Förstner","full_name":"Förstner, Jens","id":"158","first_name":"Jens"}],"volume":36,"file":[{"date_updated":"2019-08-09T07:09:04Z","date_created":"2019-08-09T07:09:04Z","creator":"fossie","file_size":728533,"file_id":"12909","access_level":"open_access","file_name":"2019-07 Hammer - JOSA B - Oblique Quasi-Lossless Excitation of a Thin Silicon Slab Waveguide (preprint).pdf","content_type":"application/pdf","relation":"main_file"}],"publication":"Journal of the Optical Society of America B","ddc":["530"],"keyword":["tet_topic_waveguides"],"language":[{"iso":"eng"}],"year":"2019","title":"Oblique quasi-lossless excitation of a thin silicon slab waveguide: a guided-wave variant of an anti-reflection coating","date_created":"2019-08-09T07:07:45Z"},{"language":[{"iso":"eng"}],"article_number":"146","user_id":"16199","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"230"},{"_id":"429"},{"_id":"27"},{"_id":"35"}],"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"_id":"13348","status":"public","type":"journal_article","publication":"Journal of the Optical Society of America B","doi":"10.1364/josab.35.000146","title":"Theory of optically controlled anisotropic polariton transport in semiconductor double microcavities","author":[{"last_name":"Luk","full_name":"Luk, Samuel M. H.","first_name":"Samuel M. H."},{"last_name":"Lewandowski","full_name":"Lewandowski, P.","first_name":"P."},{"last_name":"Kwong","full_name":"Kwong, N. H.","first_name":"N. H."},{"first_name":"E.","last_name":"Baudin","full_name":"Baudin, E."},{"first_name":"O.","full_name":"Lafont, O.","last_name":"Lafont"},{"first_name":"J.","last_name":"Tignon","full_name":"Tignon, J."},{"full_name":"Leung, P. T.","last_name":"Leung","first_name":"P. T."},{"first_name":"Ch. K. P.","last_name":"Chan","full_name":"Chan, Ch. K. P."},{"first_name":"M.","full_name":"Babilon, M.","last_name":"Babilon"},{"first_name":"Stefan","full_name":"Schumacher, Stefan","id":"27271","last_name":"Schumacher","orcid":"0000-0003-4042-4951"},{"first_name":"R.","last_name":"Binder","full_name":"Binder, R."}],"date_created":"2019-09-19T13:50:06Z","volume":35,"date_updated":"2025-12-05T14:33:42Z","citation":{"apa":"Luk, S. M. H., Lewandowski, P., Kwong, N. H., Baudin, E., Lafont, O., Tignon, J., Leung, P. T., Chan, Ch. K. P., Babilon, M., Schumacher, S., &#38; Binder, R. (2018). Theory of optically controlled anisotropic polariton transport in semiconductor double microcavities. <i>Journal of the Optical Society of America B</i>, <i>35</i>(1), Article 146. <a href=\"https://doi.org/10.1364/josab.35.000146\">https://doi.org/10.1364/josab.35.000146</a>","short":"S.M.H. Luk, P. Lewandowski, N.H. Kwong, E. Baudin, O. Lafont, J. Tignon, P.T. Leung, Ch.K.P. Chan, M. Babilon, S. Schumacher, R. Binder, Journal of the Optical Society of America B 35 (2018).","bibtex":"@article{Luk_Lewandowski_Kwong_Baudin_Lafont_Tignon_Leung_Chan_Babilon_Schumacher_et al._2018, title={Theory of optically controlled anisotropic polariton transport in semiconductor double microcavities}, volume={35}, DOI={<a href=\"https://doi.org/10.1364/josab.35.000146\">10.1364/josab.35.000146</a>}, number={1146}, journal={Journal of the Optical Society of America B}, author={Luk, Samuel M. H. and Lewandowski, P. and Kwong, N. H. and Baudin, E. and Lafont, O. and Tignon, J. and Leung, P. T. and Chan, Ch. K. P. and Babilon, M. and Schumacher, Stefan and et al.}, year={2018} }","mla":"Luk, Samuel M. H., et al. “Theory of Optically Controlled Anisotropic Polariton Transport in Semiconductor Double Microcavities.” <i>Journal of the Optical Society of America B</i>, vol. 35, no. 1, 146, 2018, doi:<a href=\"https://doi.org/10.1364/josab.35.000146\">10.1364/josab.35.000146</a>.","chicago":"Luk, Samuel M. H., P. Lewandowski, N. H. Kwong, E. Baudin, O. Lafont, J. Tignon, P. T. Leung, et al. “Theory of Optically Controlled Anisotropic Polariton Transport in Semiconductor Double Microcavities.” <i>Journal of the Optical Society of America B</i> 35, no. 1 (2018). <a href=\"https://doi.org/10.1364/josab.35.000146\">https://doi.org/10.1364/josab.35.000146</a>.","ieee":"S. M. H. Luk <i>et al.</i>, “Theory of optically controlled anisotropic polariton transport in semiconductor double microcavities,” <i>Journal of the Optical Society of America B</i>, vol. 35, no. 1, Art. no. 146, 2018, doi: <a href=\"https://doi.org/10.1364/josab.35.000146\">10.1364/josab.35.000146</a>.","ama":"Luk SMH, Lewandowski P, Kwong NH, et al. Theory of optically controlled anisotropic polariton transport in semiconductor double microcavities. <i>Journal of the Optical Society of America B</i>. 2018;35(1). doi:<a href=\"https://doi.org/10.1364/josab.35.000146\">10.1364/josab.35.000146</a>"},"intvolume":"        35","year":"2018","issue":"1","publication_status":"published","publication_identifier":{"issn":["0740-3224","1520-8540"]}},{"_id":"3828","user_id":"158","department":[{"_id":"61"}],"article_type":"original","file_date_updated":"2018-09-03T14:09:04Z","type":"journal_article","urn":"38287","status":"public","date_updated":"2022-01-06T06:59:38Z","oa":"1","author":[{"orcid":"0000-0002-6331-9348","last_name":"Hammer","id":"48077","full_name":"Hammer, Manfred","first_name":"Manfred"},{"first_name":"Samer","full_name":"Alhaddad, Samer","last_name":"Alhaddad"},{"first_name":"Jens","id":"158","full_name":"Förstner, Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner"}],"volume":34,"doi":"10.1364/josab.34.000613","publication_status":"published","publication_identifier":{"issn":["0740-3224","1520-8540"]},"has_accepted_license":"1","citation":{"bibtex":"@article{Hammer_Alhaddad_Förstner_2017, title={Hybrid coupled-mode modeling in 3D: perturbed and coupled channels, and waveguide crossings}, volume={34}, DOI={<a href=\"https://doi.org/10.1364/josab.34.000613\">10.1364/josab.34.000613</a>}, number={3}, journal={Journal of the Optical Society of America B}, publisher={The Optical Society}, author={Hammer, Manfred and Alhaddad, Samer and Förstner, Jens}, year={2017}, pages={613–624} }","short":"M. Hammer, S. Alhaddad, J. Förstner, Journal of the Optical Society of America B 34 (2017) 613–624.","mla":"Hammer, Manfred, et al. “Hybrid Coupled-Mode Modeling in 3D: Perturbed and Coupled Channels, and Waveguide Crossings.” <i>Journal of the Optical Society of America B</i>, vol. 34, no. 3, The Optical Society, 2017, pp. 613–24, doi:<a href=\"https://doi.org/10.1364/josab.34.000613\">10.1364/josab.34.000613</a>.","apa":"Hammer, M., Alhaddad, S., &#38; Förstner, J. (2017). Hybrid coupled-mode modeling in 3D: perturbed and coupled channels, and waveguide crossings. <i>Journal of the Optical Society of America B</i>, <i>34</i>(3), 613–624. <a href=\"https://doi.org/10.1364/josab.34.000613\">https://doi.org/10.1364/josab.34.000613</a>","ama":"Hammer M, Alhaddad S, Förstner J. Hybrid coupled-mode modeling in 3D: perturbed and coupled channels, and waveguide crossings. <i>Journal of the Optical Society of America B</i>. 2017;34(3):613-624. doi:<a href=\"https://doi.org/10.1364/josab.34.000613\">10.1364/josab.34.000613</a>","ieee":"M. Hammer, S. Alhaddad, and J. Förstner, “Hybrid coupled-mode modeling in 3D: perturbed and coupled channels, and waveguide crossings,” <i>Journal of the Optical Society of America B</i>, vol. 34, no. 3, pp. 613–624, 2017.","chicago":"Hammer, Manfred, Samer Alhaddad, and Jens Förstner. “Hybrid Coupled-Mode Modeling in 3D: Perturbed and Coupled Channels, and Waveguide Crossings.” <i>Journal of the Optical Society of America B</i> 34, no. 3 (2017): 613–24. <a href=\"https://doi.org/10.1364/josab.34.000613\">https://doi.org/10.1364/josab.34.000613</a>."},"page":"613-624","intvolume":"        34","ddc":["530"],"keyword":["tet_topic_waveguide","tet_topic_numerics"],"language":[{"iso":"eng"}],"publication":"Journal of the Optical Society of America B","abstract":[{"lang":"eng","text":"The 3D implementation of a hybrid analytical/numerical variant of the coupled-mode theory is discussed.\r\nEigenmodes of the constituting dielectric channels are computed numerically. The frequency-domain\r\ncoupled-mode models then combine these into fully vectorial approximations for the optical electromagnetic\r\nfields of the composite structure. Following a discretization of amplitude functions by 1D finite elements, pro-\r\ncedures from the realm of finite-element numerics are applied to establish systems of linear equations for the then-\r\ndiscrete modal amplitudes. Examples substantiate the functioning of the technique and allow for some numerical\r\nassessment. The full 3D simulations are highly efficient in memory consumption, moderately demanding in com-\r\nputational time, and, in regimes of low radiative losses, sufficiently accurate for practical design. Our results\r\ninclude the perturbation of guided modes by changes of the refractive indices, the interaction of waves in parallel,\r\nhorizontally or vertically coupled straight waveguides, and a series of crossings of potentially overlapping channels\r\nwith fairly arbitrary relative positions and orientations."}],"file":[{"creator":"hclaudia","date_created":"2018-08-07T09:46:13Z","date_updated":"2018-09-03T14:09:04Z","access_level":"open_access","file_id":"3829","file_name":"2017-02 Hammer_Hybrid coupled mode modelling in 3D_Perturbed and coupled channels and waveguide crossings_Coupled Mode Theory JOSA B.pdf","file_size":5539592,"content_type":"application/pdf","relation":"main_file"}],"publisher":"The Optical Society","date_created":"2018-08-07T08:40:41Z","title":"Hybrid coupled-mode modeling in 3D: perturbed and coupled channels, and waveguide crossings","issue":"3","year":"2017"},{"type":"journal_article","publication":"Journal of the Optical Society of America B","status":"public","project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"_id":"15855","user_id":"16199","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"230"},{"_id":"27"}],"article_number":"C153","language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"issn":["0740-3224","1520-8540"]},"year":"2016","citation":{"chicago":"Kwong, N. H., C. Y. Tsang, M. H. Luk, Y. C. Tse, P. Lewandowski, Chris K. P. Chan, P. T. Leung, Stefan Schumacher, and R. Binder. “Patterns and Switching Dynamics in Polaritonic Quantum Fluids in Semiconductor Microcavities [Invited].” <i>Journal of the Optical Society of America B</i>, 2016. <a href=\"https://doi.org/10.1364/josab.33.00c153\">https://doi.org/10.1364/josab.33.00c153</a>.","ieee":"N. H. Kwong <i>et al.</i>, “Patterns and switching dynamics in polaritonic quantum fluids in semiconductor microcavities [Invited],” <i>Journal of the Optical Society of America B</i>, Art. no. C153, 2016, doi: <a href=\"https://doi.org/10.1364/josab.33.00c153\">10.1364/josab.33.00c153</a>.","ama":"Kwong NH, Tsang CY, Luk MH, et al. Patterns and switching dynamics in polaritonic quantum fluids in semiconductor microcavities [Invited]. <i>Journal of the Optical Society of America B</i>. Published online 2016. doi:<a href=\"https://doi.org/10.1364/josab.33.00c153\">10.1364/josab.33.00c153</a>","bibtex":"@article{Kwong_Tsang_Luk_Tse_Lewandowski_Chan_Leung_Schumacher_Binder_2016, title={Patterns and switching dynamics in polaritonic quantum fluids in semiconductor microcavities [Invited]}, DOI={<a href=\"https://doi.org/10.1364/josab.33.00c153\">10.1364/josab.33.00c153</a>}, number={C153}, journal={Journal of the Optical Society of America B}, author={Kwong, N. H. and Tsang, C. Y. and Luk, M. H. and Tse, Y. C. and Lewandowski, P. and Chan, Chris K. P. and Leung, P. T. and Schumacher, Stefan and Binder, R.}, year={2016} }","mla":"Kwong, N. H., et al. “Patterns and Switching Dynamics in Polaritonic Quantum Fluids in Semiconductor Microcavities [Invited].” <i>Journal of the Optical Society of America B</i>, C153, 2016, doi:<a href=\"https://doi.org/10.1364/josab.33.00c153\">10.1364/josab.33.00c153</a>.","short":"N.H. Kwong, C.Y. Tsang, M.H. Luk, Y.C. Tse, P. Lewandowski, C.K.P. Chan, P.T. Leung, S. Schumacher, R. Binder, Journal of the Optical Society of America B (2016).","apa":"Kwong, N. H., Tsang, C. Y., Luk, M. H., Tse, Y. C., Lewandowski, P., Chan, C. K. P., Leung, P. T., Schumacher, S., &#38; Binder, R. (2016). Patterns and switching dynamics in polaritonic quantum fluids in semiconductor microcavities [Invited]. <i>Journal of the Optical Society of America B</i>, Article C153. <a href=\"https://doi.org/10.1364/josab.33.00c153\">https://doi.org/10.1364/josab.33.00c153</a>"},"date_updated":"2025-12-05T14:42:03Z","date_created":"2020-02-10T11:43:44Z","author":[{"last_name":"Kwong","full_name":"Kwong, N. H.","first_name":"N. H."},{"first_name":"C. Y.","full_name":"Tsang, C. Y.","last_name":"Tsang"},{"last_name":"Luk","full_name":"Luk, M. H.","first_name":"M. H."},{"first_name":"Y. C.","last_name":"Tse","full_name":"Tse, Y. C."},{"full_name":"Lewandowski, P.","last_name":"Lewandowski","first_name":"P."},{"last_name":"Chan","full_name":"Chan, Chris K. P.","first_name":"Chris K. P."},{"last_name":"Leung","full_name":"Leung, P. T.","first_name":"P. T."},{"first_name":"Stefan","last_name":"Schumacher","orcid":"0000-0003-4042-4951","id":"27271","full_name":"Schumacher, Stefan"},{"first_name":"R.","full_name":"Binder, R.","last_name":"Binder"}],"title":"Patterns and switching dynamics in polaritonic quantum fluids in semiconductor microcavities [Invited]","doi":"10.1364/josab.33.00c153"},{"publication":"Journal of the Optical Society of America B","file":[{"date_created":"2018-08-20T10:00:33Z","creator":"hclaudia","date_updated":"2018-08-20T10:00:33Z","file_id":"3938","access_level":"closed","file_name":"2014_07_Hoekstra,Hammer_General relation for group delay and the relevance of group delay for refractometric sensing_OSA.pdf","file_size":364221,"content_type":"application/pdf","relation":"main_file","success":1}],"abstract":[{"lang":"eng","text":"The relevance of our definition for sensitivity in refractometric sensing, being the relative change in the transmittance\r\nof a certain output channel of an optical device over the change in the refractive index of the probed\r\nmaterial, is discussed. It is compared to one based on spectral shift per refractive index unit change. Further, there\r\nis discussion on how group delay and sensitivity are interrelated and can be converted into each other and which\r\nphysical quantities are relevant for high sensitivity. As a by-product of the theory presented, a general expression\r\nrelating group delay and the ratio of the time-averaged optical energy and the input power is presented."}],"language":[{"iso":"eng"}],"ddc":["530"],"keyword":["tet_topic_waveguide"],"issue":"7","year":"2014","date_created":"2018-08-20T09:59:35Z","publisher":"The Optical Society","title":"General relation for group delay and the relevance of group delay for refractometric sensing","type":"journal_article","status":"public","user_id":"55706","department":[{"_id":"61"}],"_id":"3937","file_date_updated":"2018-08-20T10:00:33Z","article_type":"original","article_number":"1561-1567","publication_status":"published","publication_identifier":{"issn":["0740-3224","1520-8540"]},"has_accepted_license":"1","citation":{"chicago":"Hoekstra, Hugo J. W. M., and Manfred Hammer. “General Relation for Group Delay and the Relevance of Group Delay for Refractometric Sensing.” <i>Journal of the Optical Society of America B</i> 31, no. 7 (2014). <a href=\"https://doi.org/10.1364/josab.31.001561\">https://doi.org/10.1364/josab.31.001561</a>.","ieee":"H. J. W. M. Hoekstra and M. Hammer, “General relation for group delay and the relevance of group delay for refractometric sensing,” <i>Journal of the Optical Society of America B</i>, vol. 31, no. 7, 2014.","ama":"Hoekstra HJWM, Hammer M. General relation for group delay and the relevance of group delay for refractometric sensing. <i>Journal of the Optical Society of America B</i>. 2014;31(7). doi:<a href=\"https://doi.org/10.1364/josab.31.001561\">10.1364/josab.31.001561</a>","apa":"Hoekstra, H. J. W. M., &#38; Hammer, M. (2014). General relation for group delay and the relevance of group delay for refractometric sensing. <i>Journal of the Optical Society of America B</i>, <i>31</i>(7). <a href=\"https://doi.org/10.1364/josab.31.001561\">https://doi.org/10.1364/josab.31.001561</a>","mla":"Hoekstra, Hugo J. W. M., and Manfred Hammer. “General Relation for Group Delay and the Relevance of Group Delay for Refractometric Sensing.” <i>Journal of the Optical Society of America B</i>, vol. 31, no. 7, 1561–1567, The Optical Society, 2014, doi:<a href=\"https://doi.org/10.1364/josab.31.001561\">10.1364/josab.31.001561</a>.","bibtex":"@article{Hoekstra_Hammer_2014, title={General relation for group delay and the relevance of group delay for refractometric sensing}, volume={31}, DOI={<a href=\"https://doi.org/10.1364/josab.31.001561\">10.1364/josab.31.001561</a>}, number={71561–1567}, journal={Journal of the Optical Society of America B}, publisher={The Optical Society}, author={Hoekstra, Hugo J. W. M. and Hammer, Manfred}, year={2014} }","short":"H.J.W.M. Hoekstra, M. Hammer, Journal of the Optical Society of America B 31 (2014)."},"intvolume":"        31","author":[{"last_name":"Hoekstra","full_name":"Hoekstra, Hugo J. W. M.","first_name":"Hugo J. W. M."},{"first_name":"Manfred","last_name":"Hammer","orcid":"0000-0002-6331-9348","full_name":"Hammer, Manfred","id":"48077"}],"volume":31,"date_updated":"2022-01-06T06:59:57Z","doi":"10.1364/josab.31.001561"},{"year":"2012","intvolume":"        29","citation":{"ieee":"M. Reichelt, A. Walther, and T. Meier, “Tailoring the high-harmonic emission in two-level systems and semiconductors by pulse shaping,” <i>Journal of the Optical Society of America B</i>, vol. 29, no. 2, Art. no. A36, 2012, doi: <a href=\"https://doi.org/10.1364/josab.29.000a36\">10.1364/josab.29.000a36</a>.","chicago":"Reichelt, Matthias, Andrea Walther, and Torsten Meier. “Tailoring the High-Harmonic Emission in Two-Level Systems and Semiconductors by Pulse Shaping.” <i>Journal of the Optical Society of America B</i> 29, no. 2 (2012). <a href=\"https://doi.org/10.1364/josab.29.000a36\">https://doi.org/10.1364/josab.29.000a36</a>.","ama":"Reichelt M, Walther A, Meier T. Tailoring the high-harmonic emission in two-level systems and semiconductors by pulse shaping. <i>Journal of the Optical Society of America B</i>. 2012;29(2). doi:<a href=\"https://doi.org/10.1364/josab.29.000a36\">10.1364/josab.29.000a36</a>","apa":"Reichelt, M., Walther, A., &#38; Meier, T. (2012). Tailoring the high-harmonic emission in two-level systems and semiconductors by pulse shaping. <i>Journal of the Optical Society of America B</i>, <i>29</i>(2), Article A36. <a href=\"https://doi.org/10.1364/josab.29.000a36\">https://doi.org/10.1364/josab.29.000a36</a>","bibtex":"@article{Reichelt_Walther_Meier_2012, title={Tailoring the high-harmonic emission in two-level systems and semiconductors by pulse shaping}, volume={29}, DOI={<a href=\"https://doi.org/10.1364/josab.29.000a36\">10.1364/josab.29.000a36</a>}, number={2A36}, journal={Journal of the Optical Society of America B}, author={Reichelt, Matthias and Walther, Andrea and Meier, Torsten}, year={2012} }","short":"M. Reichelt, A. Walther, T. Meier, Journal of the Optical Society of America B 29 (2012).","mla":"Reichelt, Matthias, et al. “Tailoring the High-Harmonic Emission in Two-Level Systems and Semiconductors by Pulse Shaping.” <i>Journal of the Optical Society of America B</i>, vol. 29, no. 2, A36, 2012, doi:<a href=\"https://doi.org/10.1364/josab.29.000a36\">10.1364/josab.29.000a36</a>."},"publication_identifier":{"issn":["0740-3224","1520-8540"]},"publication_status":"published","issue":"2","title":"Tailoring the high-harmonic emission in two-level systems and semiconductors by pulse shaping","doi":"10.1364/josab.29.000a36","date_updated":"2023-04-16T22:31:17Z","volume":29,"date_created":"2021-08-06T09:00:31Z","author":[{"first_name":"Matthias","last_name":"Reichelt","id":"138","full_name":"Reichelt, Matthias"},{"first_name":"Andrea","last_name":"Walther","full_name":"Walther, Andrea"},{"orcid":"0000-0001-8864-2072","last_name":"Meier","full_name":"Meier, Torsten","id":"344","first_name":"Torsten"}],"abstract":[{"lang":"eng","text":"The generation of specific high harmonics for an optical two-level system is elucidated. The desired emitted radiation can be induced by a carefully designed excitation pulse, which is found by a multiparameter optimization procedure. The presented mechanism can also be applied to semiconductor structures for which the calculations result in much higher emission frequencies. The optimization procedure is either performed using a genetic algorithm or a rigorous mathematical optimization technique."}],"status":"public","publication":"Journal of the Optical Society of America B","type":"journal_article","article_number":"A36","language":[{"iso":"eng"}],"_id":"22953","project":[{"_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"}],"department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"230"}],"user_id":"49063"},{"_id":"23493","user_id":"49063","department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"230"}],"extern":"1","language":[{"iso":"eng"}],"type":"journal_article","publication":"Journal of the Optical Society of America B","abstract":[{"text":"A microscopic analysis is presented for the extreme nonlinear optical response of semiconductor quantum wells and wires after intense excitation with femtosecond laser pulses. In this regime, the light–matter interaction is the dominant eneregy scale, leading to a number of interesting effects such as carrier-wave Rabi flopping, Mollow splitting, and the creation of higher harmonics. The results presented here were obtained by evaluating the semiconductor Bloch equations without the rotating wave approximation. The electronic dispersion of semiconductor nanostructures is shown to have a characteristic influence on the extreme nonlinear optical response, whereas the relative importance of the carrier Coulomb interaction decreases with increasing excitation intensities.","lang":"eng"}],"status":"public","date_updated":"2023-04-24T05:39:11Z","author":[{"first_name":"Daniel","last_name":"Golde","full_name":"Golde, Daniel"},{"last_name":"Meier","orcid":"0000-0001-8864-2072","full_name":"Meier, Torsten","id":"344","first_name":"Torsten"},{"last_name":"Koch","full_name":"Koch, Stephan W.","first_name":"Stephan W."}],"date_created":"2021-08-24T09:16:21Z","volume":23,"title":"Microscopic analysis of extreme nonlinear optics in semiconductor nanostructures","doi":"10.1364/josab.23.002559","publication_status":"published","publication_identifier":{"issn":["0740-3224","1520-8540"]},"issue":"12","year":"2006","citation":{"ama":"Golde D, Meier T, Koch SW. Microscopic analysis of extreme nonlinear optics in semiconductor nanostructures. <i>Journal of the Optical Society of America B</i>. 2006;23(12):2559-2565. doi:<a href=\"https://doi.org/10.1364/josab.23.002559\">10.1364/josab.23.002559</a>","ieee":"D. Golde, T. Meier, and S. W. Koch, “Microscopic analysis of extreme nonlinear optics in semiconductor nanostructures,” <i>Journal of the Optical Society of America B</i>, vol. 23, no. 12, pp. 2559–2565, 2006, doi: <a href=\"https://doi.org/10.1364/josab.23.002559\">10.1364/josab.23.002559</a>.","chicago":"Golde, Daniel, Torsten Meier, and Stephan W. Koch. “Microscopic Analysis of Extreme Nonlinear Optics in Semiconductor Nanostructures.” <i>Journal of the Optical Society of America B</i> 23, no. 12 (2006): 2559–65. <a href=\"https://doi.org/10.1364/josab.23.002559\">https://doi.org/10.1364/josab.23.002559</a>.","bibtex":"@article{Golde_Meier_Koch_2006, title={Microscopic analysis of extreme nonlinear optics in semiconductor nanostructures}, volume={23}, DOI={<a href=\"https://doi.org/10.1364/josab.23.002559\">10.1364/josab.23.002559</a>}, number={12}, journal={Journal of the Optical Society of America B}, author={Golde, Daniel and Meier, Torsten and Koch, Stephan W.}, year={2006}, pages={2559–2565} }","mla":"Golde, Daniel, et al. “Microscopic Analysis of Extreme Nonlinear Optics in Semiconductor Nanostructures.” <i>Journal of the Optical Society of America B</i>, vol. 23, no. 12, 2006, pp. 2559–65, doi:<a href=\"https://doi.org/10.1364/josab.23.002559\">10.1364/josab.23.002559</a>.","short":"D. Golde, T. Meier, S.W. Koch, Journal of the Optical Society of America B 23 (2006) 2559–2565.","apa":"Golde, D., Meier, T., &#38; Koch, S. W. (2006). Microscopic analysis of extreme nonlinear optics in semiconductor nanostructures. <i>Journal of the Optical Society of America B</i>, <i>23</i>(12), 2559–2565. <a href=\"https://doi.org/10.1364/josab.23.002559\">https://doi.org/10.1364/josab.23.002559</a>"},"intvolume":"        23","page":"2559-2565"},{"_id":"23506","user_id":"49063","department":[{"_id":"15"},{"_id":"170"},{"_id":"293"}],"language":[{"iso":"eng"}],"extern":"1","type":"journal_article","publication":"Journal of the Optical Society of America B","abstract":[{"text":"The optical properties of semiconductor quantum wells embedded in one-dimensional photonic crystal structures are analyzed by a self-consistent solution of Maxwell’s equations and a microscopic many-body theory of the material excitations. For a field mode spectrally below the photonic band edge it is shown that the optical absorption and gain are enhanced, exceeding by more than 1 order of magnitude the values of a homogeneous medium. For the photonic crystal structure inside a microcavity the gain increases superlinearly with the number of wells and for more than five wells exceeds the gain of a corresponding vertical-cavity surface-emitting laser.","lang":"eng"}],"status":"public","date_updated":"2023-04-24T06:02:06Z","date_created":"2021-08-24T09:28:32Z","author":[{"first_name":"Bernhard","last_name":"Pasenow","full_name":"Pasenow, Bernhard"},{"first_name":"Matthias","full_name":"Reichelt, Matthias","id":"138","last_name":"Reichelt"},{"last_name":"Stroucken","full_name":"Stroucken, Tineke","first_name":"Tineke"},{"id":"344","full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","first_name":"Torsten"},{"full_name":"Koch, Stephan W.","last_name":"Koch","first_name":"Stephan W."},{"last_name":"Zakharian","full_name":"Zakharian, Aramis R.","first_name":"Aramis R."},{"full_name":"Moloney, Jerome V.","last_name":"Moloney","first_name":"Jerome V."}],"volume":22,"title":"Enhanced light-matter interaction in semiconductor heterostructures embedded in one-dimensional photonic crystals","doi":"10.1364/josab.22.002039","publication_status":"published","publication_identifier":{"issn":["0740-3224","1520-8540"]},"issue":"9","year":"2005","citation":{"apa":"Pasenow, B., Reichelt, M., Stroucken, T., Meier, T., Koch, S. W., Zakharian, A. R., &#38; Moloney, J. V. (2005). Enhanced light-matter interaction in semiconductor heterostructures embedded in one-dimensional photonic crystals. <i>Journal of the Optical Society of America B</i>, <i>22</i>(9), 2039–2048. <a href=\"https://doi.org/10.1364/josab.22.002039\">https://doi.org/10.1364/josab.22.002039</a>","bibtex":"@article{Pasenow_Reichelt_Stroucken_Meier_Koch_Zakharian_Moloney_2005, title={Enhanced light-matter interaction in semiconductor heterostructures embedded in one-dimensional photonic crystals}, volume={22}, DOI={<a href=\"https://doi.org/10.1364/josab.22.002039\">10.1364/josab.22.002039</a>}, number={9}, journal={Journal of the Optical Society of America B}, author={Pasenow, Bernhard and Reichelt, Matthias and Stroucken, Tineke and Meier, Torsten and Koch, Stephan W. and Zakharian, Aramis R. and Moloney, Jerome V.}, year={2005}, pages={2039–2048} }","short":"B. Pasenow, M. Reichelt, T. Stroucken, T. Meier, S.W. Koch, A.R. Zakharian, J.V. Moloney, Journal of the Optical Society of America B 22 (2005) 2039–2048.","mla":"Pasenow, Bernhard, et al. “Enhanced Light-Matter Interaction in Semiconductor Heterostructures Embedded in One-Dimensional Photonic Crystals.” <i>Journal of the Optical Society of America B</i>, vol. 22, no. 9, 2005, pp. 2039–48, doi:<a href=\"https://doi.org/10.1364/josab.22.002039\">10.1364/josab.22.002039</a>.","ama":"Pasenow B, Reichelt M, Stroucken T, et al. Enhanced light-matter interaction in semiconductor heterostructures embedded in one-dimensional photonic crystals. <i>Journal of the Optical Society of America B</i>. 2005;22(9):2039-2048. doi:<a href=\"https://doi.org/10.1364/josab.22.002039\">10.1364/josab.22.002039</a>","chicago":"Pasenow, Bernhard, Matthias Reichelt, Tineke Stroucken, Torsten Meier, Stephan W. Koch, Aramis R. Zakharian, and Jerome V. Moloney. “Enhanced Light-Matter Interaction in Semiconductor Heterostructures Embedded in One-Dimensional Photonic Crystals.” <i>Journal of the Optical Society of America B</i> 22, no. 9 (2005): 2039–48. <a href=\"https://doi.org/10.1364/josab.22.002039\">https://doi.org/10.1364/josab.22.002039</a>.","ieee":"B. Pasenow <i>et al.</i>, “Enhanced light-matter interaction in semiconductor heterostructures embedded in one-dimensional photonic crystals,” <i>Journal of the Optical Society of America B</i>, vol. 22, no. 9, pp. 2039–2048, 2005, doi: <a href=\"https://doi.org/10.1364/josab.22.002039\">10.1364/josab.22.002039</a>."},"page":"2039-2048","intvolume":"        22"}]