[{"publication_status":"published","date_updated":"2026-08-31T12:11:43Z","article_type":"original","intvolume":"        34","title":"High-performance photon-pair source using a two-photon-polymerized strip-loaded lithium niobate waveguide","year":"2026","publication_identifier":{"issn":["1094-4087"]},"author":[{"full_name":"Sewidan, Muhamed A.","first_name":"Muhamed A.","last_name":"Sewidan"},{"first_name":"Alexandra","last_name":"Rittmeier","full_name":"Rittmeier, Alexandra"},{"id":"61375","full_name":"Bollmers, Laura","last_name":"Bollmers","first_name":"Laura"},{"id":"63231","last_name":"Babel","orcid":"https://orcid.org/0000-0002-1568-2580","first_name":"Silia","full_name":"Babel, Silia"},{"full_name":"Chatzizyrli, Elisavet","first_name":"Elisavet","last_name":"Chatzizyrli"},{"last_name":"Duran Gomez","first_name":"Juan S. S.","full_name":"Duran Gomez, Juan S. S."},{"id":"40300","full_name":"Padberg, Laura","first_name":"Laura","last_name":"Padberg"},{"id":"13244","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","first_name":"Christof","full_name":"Eigner, Christof"},{"id":"26263","first_name":"Christine","last_name":"Silberhorn","full_name":"Silberhorn, Christine"},{"last_name":"Bremner","first_name":"Douglas","full_name":"Bremner, Douglas"},{"first_name":"Andreas","last_name":"Wienke","full_name":"Wienke, Andreas"},{"first_name":"Dietmar","last_name":"Kracht","full_name":"Kracht, Dietmar"},{"first_name":"Moritz","last_name":"Hinkelmann","full_name":"Hinkelmann, Moritz"},{"first_name":"Michael","last_name":"Kues","full_name":"Kues, Michael"}],"doi":"10.1364/oe.596879","article_number":"29244","main_file_link":[{"url":"https://opg.optica.org/oe/fulltext.cfm?uri=oe-34-16-29244","open_access":"1"}],"language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Integrated photon-pair sources, providing scalability solutions, are crucial for large-scale realizations of quantum photonic technologies. Their traditional fabrication techniques, such as etching, are often complex, require long development cycles, and are resource inefficient in case of fabrication imperfections or failures. The two-photon polymerization (2PP) technique can offer a rapid, efficient, and reproducible alternative for the fabrication of integrated photonic devices. Here, we demonstrate an integrated photon-pair source based on a 2PP-defined strip-loaded waveguide on a periodically poled thin-film lithium niobate (TFLN) platform. The device generates photon pairs through type-II spontaneous parametric down-conversion (SPDC), employing first-order quasi-phase matching (QPM) with TM-polarized excitation light. The device achieves an on-chip pair generation rate of 4.357 MHz and a coincidence-to-accidental ratio (CAR) of ∼404. To prove the flexibility and versatility of the fabrication technique, the waveguides were erased from the LN substrate and reprinted, reaching comparable performance. This work demonstrates the potential of 2PP as a rapid production technique for high-performance integrated photon-pair sources, offering a practical solution to the limitations of traditional fabrication techniques and showcasing both reproducibility of the fabrication and the reusability of the substrate."}],"publication":"Optics Express","issue":"16","type":"journal_article","department":[{"_id":"15"},{"_id":"623"},{"_id":"288"}],"date_created":"2026-08-31T12:02:48Z","status":"public","user_id":"63231","volume":34,"publisher":"Optica Publishing Group","_id":"66877","citation":{"apa":"Sewidan, M. A., Rittmeier, A., Bollmers, L., Babel, S., Chatzizyrli, E., Duran Gomez, J. S. S., Padberg, L., Eigner, C., Silberhorn, C., Bremner, D., Wienke, A., Kracht, D., Hinkelmann, M., &#38; Kues, M. (2026). High-performance photon-pair source using a two-photon-polymerized strip-loaded lithium niobate waveguide. <i>Optics Express</i>, <i>34</i>(16), Article 29244. <a href=\"https://doi.org/10.1364/oe.596879\">https://doi.org/10.1364/oe.596879</a>","ieee":"M. A. Sewidan <i>et al.</i>, “High-performance photon-pair source using a two-photon-polymerized strip-loaded lithium niobate waveguide,” <i>Optics Express</i>, vol. 34, no. 16, Art. no. 29244, 2026, doi: <a href=\"https://doi.org/10.1364/oe.596879\">10.1364/oe.596879</a>.","short":"M.A. Sewidan, A. Rittmeier, L. Bollmers, S. Babel, E. Chatzizyrli, J.S.S. Duran Gomez, L. Padberg, C. Eigner, C. Silberhorn, D. Bremner, A. Wienke, D. Kracht, M. Hinkelmann, M. Kues, Optics Express 34 (2026).","chicago":"Sewidan, Muhamed A., Alexandra Rittmeier, Laura Bollmers, Silia Babel, Elisavet Chatzizyrli, Juan S. S. Duran Gomez, Laura Padberg, et al. “High-Performance Photon-Pair Source Using a Two-Photon-Polymerized Strip-Loaded Lithium Niobate Waveguide.” <i>Optics Express</i> 34, no. 16 (2026). <a href=\"https://doi.org/10.1364/oe.596879\">https://doi.org/10.1364/oe.596879</a>.","mla":"Sewidan, Muhamed A., et al. “High-Performance Photon-Pair Source Using a Two-Photon-Polymerized Strip-Loaded Lithium Niobate Waveguide.” <i>Optics Express</i>, vol. 34, no. 16, 29244, Optica Publishing Group, 2026, doi:<a href=\"https://doi.org/10.1364/oe.596879\">10.1364/oe.596879</a>.","ama":"Sewidan MA, Rittmeier A, Bollmers L, et al. High-performance photon-pair source using a two-photon-polymerized strip-loaded lithium niobate waveguide. <i>Optics Express</i>. 2026;34(16). doi:<a href=\"https://doi.org/10.1364/oe.596879\">10.1364/oe.596879</a>","bibtex":"@article{Sewidan_Rittmeier_Bollmers_Babel_Chatzizyrli_Duran Gomez_Padberg_Eigner_Silberhorn_Bremner_et al._2026, title={High-performance photon-pair source using a two-photon-polymerized strip-loaded lithium niobate waveguide}, volume={34}, DOI={<a href=\"https://doi.org/10.1364/oe.596879\">10.1364/oe.596879</a>}, number={1629244}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Sewidan, Muhamed A. and Rittmeier, Alexandra and Bollmers, Laura and Babel, Silia and Chatzizyrli, Elisavet and Duran Gomez, Juan S. S. and Padberg, Laura and Eigner, Christof and Silberhorn, Christine and Bremner, Douglas and et al.}, year={2026} }"},"oa":"1"},{"status":"public","volume":33,"user_id":"63231","publisher":"Optica Publishing Group","_id":"63091","citation":{"mla":"Babel, Silia, et al. “Ultrabright, Two-Color Photon Pair Source Based on Thin-Film Lithium Niobate for Bridging Visible and Telecom Wavelengths.” <i>Optics Express</i>, vol. 33, no. 25, 52729, Optica Publishing Group, 2025, doi:<a href=\"https://doi.org/10.1364/oe.571605\">10.1364/oe.571605</a>.","ama":"Babel S, Bollmers L, Roeder F, et al. Ultrabright, two-color photon pair source based on thin-film lithium niobate for bridging visible and telecom wavelengths. <i>Optics Express</i>. 2025;33(25). doi:<a href=\"https://doi.org/10.1364/oe.571605\">10.1364/oe.571605</a>","bibtex":"@article{Babel_Bollmers_Roeder_Ridder_Golla_Köthemann_Reineke_Herrmann_Brecht_Eigner_et al._2025, title={Ultrabright, two-color photon pair source based on thin-film lithium niobate for bridging visible and telecom wavelengths}, volume={33}, DOI={<a href=\"https://doi.org/10.1364/oe.571605\">10.1364/oe.571605</a>}, number={2552729}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Babel, Silia and Bollmers, Laura and Roeder, Franz and Ridder, Werner and Golla, Christian and Köthemann, Ronja and Reineke, Bernhard and Herrmann, Harald and Brecht, Benjamin and Eigner, Christof and et al.}, year={2025} }","apa":"Babel, S., Bollmers, L., Roeder, F., Ridder, W., Golla, C., Köthemann, R., Reineke, B., Herrmann, H., Brecht, B., Eigner, C., Padberg, L., &#38; Silberhorn, C. (2025). Ultrabright, two-color photon pair source based on thin-film lithium niobate for bridging visible and telecom wavelengths. <i>Optics Express</i>, <i>33</i>(25), Article 52729. <a href=\"https://doi.org/10.1364/oe.571605\">https://doi.org/10.1364/oe.571605</a>","ieee":"S. Babel <i>et al.</i>, “Ultrabright, two-color photon pair source based on thin-film lithium niobate for bridging visible and telecom wavelengths,” <i>Optics Express</i>, vol. 33, no. 25, Art. no. 52729, 2025, doi: <a href=\"https://doi.org/10.1364/oe.571605\">10.1364/oe.571605</a>.","short":"S. Babel, L. Bollmers, F. Roeder, W. Ridder, C. Golla, R. Köthemann, B. Reineke, H. Herrmann, B. Brecht, C. Eigner, L. Padberg, C. Silberhorn, Optics Express 33 (2025).","chicago":"Babel, Silia, Laura Bollmers, Franz Roeder, Werner Ridder, Christian Golla, Ronja Köthemann, Bernhard Reineke, et al. “Ultrabright, Two-Color Photon Pair Source Based on Thin-Film Lithium Niobate for Bridging Visible and Telecom Wavelengths.” <i>Optics Express</i> 33, no. 25 (2025). <a href=\"https://doi.org/10.1364/oe.571605\">https://doi.org/10.1364/oe.571605</a>."},"oa":"1","article_type":"original","intvolume":"        33","publication_status":"published","date_updated":"2026-01-07T11:28:35Z","author":[{"id":"63231","orcid":"https://orcid.org/0000-0002-1568-2580","first_name":"Silia","last_name":"Babel","full_name":"Babel, Silia"},{"id":"61375","full_name":"Bollmers, Laura","last_name":"Bollmers","first_name":"Laura"},{"full_name":"Roeder, Franz","last_name":"Roeder","first_name":"Franz","id":"88149"},{"id":"63574","full_name":"Ridder, Werner","last_name":"Ridder","first_name":"Werner"},{"full_name":"Golla, Christian","last_name":"Golla","first_name":"Christian","id":"40420"},{"last_name":"Köthemann","first_name":"Ronja","full_name":"Köthemann, Ronja"},{"id":"29821","first_name":"Bernhard","last_name":"Reineke","full_name":"Reineke, Bernhard"},{"id":"216","full_name":"Herrmann, Harald","last_name":"Herrmann","first_name":"Harald"},{"first_name":"Benjamin","orcid":"0000-0003-4140-0556 ","last_name":"Brecht","full_name":"Brecht, Benjamin","id":"27150"},{"id":"13244","full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083","first_name":"Christof","last_name":"Eigner"},{"id":"40300","first_name":"Laura","last_name":"Padberg","full_name":"Padberg, Laura"},{"full_name":"Silberhorn, Christine","last_name":"Silberhorn","first_name":"Christine","id":"26263"}],"publication_identifier":{"issn":["1094-4087"]},"year":"2025","title":"Ultrabright, two-color photon pair source based on thin-film lithium niobate for bridging visible and telecom wavelengths","doi":"10.1364/oe.571605","language":[{"iso":"eng"}],"article_number":"52729","main_file_link":[{"open_access":"1","url":"https://opg.optica.org/oe/fulltext.cfm?uri=oe-33-25-52729"}],"abstract":[{"lang":"eng","text":"We present the design and characterization of a guided-wave, bright, and highly frequency non-degenerate parametric down-conversion (PDC) source in thin-film lithium niobate. The source generates photon pairs with wavelengths of 815 nm and 1550 nm, linking the visible wavelength regime with telecommunication wavelengths. We confirm the high quality of the generated single photons by determining a value for the heralded second-order correlation function as low as g_h^(2)=(6.7+/-1.1)*10^8-3). Furthermore, we achieve a high spectral brightness of 0.44·10pairs/(smWGHz) which is two orders of magnitude higher than sources based on weakly guiding waveguides. The shape of the PDC spectrum and the strong agreement between the effective and nominal bandwidth highlight our high fabrication quality of periodically poled waveguides. The good agreement between the measured and simulated spectral characteristics of our source demonstrates our excellent understanding of the PDC process. Our result is a valuable step towards practical and scalable quantum communication networks as well as photonic quantum computing."}],"publication":"Optics Express","issue":"25","department":[{"_id":"288"},{"_id":"623"}],"type":"journal_article","date_created":"2025-12-15T07:20:36Z"},{"intvolume":"        32","publication_status":"published","date_updated":"2024-07-22T07:43:02Z","publication_identifier":{"issn":["1094-4087"]},"author":[{"last_name":"Hammer","orcid":"0000-0002-6331-9348","first_name":"Manfred","full_name":"Hammer, Manfred","id":"48077"},{"full_name":"Babel, Silia","orcid":"https://orcid.org/0000-0002-1568-2580","first_name":"Silia","last_name":"Babel","id":"63231"},{"id":"53444","last_name":"Farheen","first_name":"Henna","orcid":"0000-0001-7730-3489","full_name":"Farheen, Henna"},{"id":"40300","full_name":"Padberg, Laura","first_name":"Laura","last_name":"Padberg"},{"last_name":"Scheytt","orcid":"0000-0002-5950-6618 ","first_name":"J. Christoph","full_name":"Scheytt, J. Christoph","id":"37144"},{"first_name":"Christine","last_name":"Silberhorn","full_name":"Silberhorn, Christine","id":"26263"},{"id":"158","full_name":"Förstner, Jens","orcid":"0000-0001-7059-9862","first_name":"Jens","last_name":"Förstner"}],"title":"Estimation of losses caused by sidewall roughness in thin-film lithium niobate rib and strip waveguides","year":"2024","doi":"10.1364/oe.521766","language":[{"iso":"eng"}],"abstract":[{"text":"Samples of dielectric optical waveguides of rib or strip type in thin-film lithium niobate (TFLN) technology are characterized with respect to their optical loss using the Fabry-Pérot method. Attributing the losses mainly to sidewall roughness, we employ a simple perturbational procedure, based on rigorously computed mode profiles of idealized channels, to estimate the attenuation for waveguides with different cross sections. A single fit parameter suffices for an adequate modelling of the effect of the waveguide geometry on the loss levels.","lang":"eng"}],"publication":"Optics Express","issue":"13","department":[{"_id":"61"},{"_id":"429"},{"_id":"623"},{"_id":"263"},{"_id":"288"}],"type":"journal_article","keyword":["tet_topic_waveguide"],"date_created":"2024-06-10T11:18:06Z","file":[{"file_name":"2024-06 Hammer - Optics Express - Estimation of losses caused by sidewall roughness in thin-film lithium niobate rib and strip waveguides.pdf","access_level":"open_access","file_size":4004782,"relation":"main_file","date_updated":"2024-06-10T11:25:00Z","file_id":"54669","content_type":"application/pdf","creator":"fossie","date_created":"2024-06-10T11:25:00Z"}],"has_accepted_license":"1","status":"public","volume":32,"user_id":"158","ddc":["530"],"_id":"54668","publisher":"Optica Publishing Group","page":"22878","project":[{"grant_number":"231447078","_id":"53","name":"TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"grant_number":"231447078","_id":"175","name":"TRR 142 - C11: TRR 142 - Kompakte Photonenpaar-Quelle mit ultraschnellen Modulatoren auf Basis von CMOS und LNOI (C11*)"},{"name":"TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle eines photonischen Quantensystems (B06*)","_id":"167","grant_number":"231447078"},{"name":"PhoQC: PhoQC: Photonisches Quantencomputing","_id":"266","grant_number":"PROFILNRW-2020-067"}],"citation":{"mla":"Hammer, Manfred, et al. “Estimation of Losses Caused by Sidewall Roughness in Thin-Film Lithium Niobate Rib and Strip Waveguides.” <i>Optics Express</i>, vol. 32, no. 13, Optica Publishing Group, 2024, p. 22878, doi:<a href=\"https://doi.org/10.1364/oe.521766\">10.1364/oe.521766</a>.","ama":"Hammer M, Babel S, Farheen H, et al. Estimation of losses caused by sidewall roughness in thin-film lithium niobate rib and strip waveguides. <i>Optics Express</i>. 2024;32(13):22878. doi:<a href=\"https://doi.org/10.1364/oe.521766\">10.1364/oe.521766</a>","bibtex":"@article{Hammer_Babel_Farheen_Padberg_Scheytt_Silberhorn_Förstner_2024, title={Estimation of losses caused by sidewall roughness in thin-film lithium niobate rib and strip waveguides}, volume={32}, DOI={<a href=\"https://doi.org/10.1364/oe.521766\">10.1364/oe.521766</a>}, number={13}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Hammer, Manfred and Babel, Silia and Farheen, Henna and Padberg, Laura and Scheytt, J. Christoph and Silberhorn, Christine and Förstner, Jens}, year={2024}, pages={22878} }","apa":"Hammer, M., Babel, S., Farheen, H., Padberg, L., Scheytt, J. C., Silberhorn, C., &#38; Förstner, J. (2024). Estimation of losses caused by sidewall roughness in thin-film lithium niobate rib and strip waveguides. <i>Optics Express</i>, <i>32</i>(13), 22878. <a href=\"https://doi.org/10.1364/oe.521766\">https://doi.org/10.1364/oe.521766</a>","ieee":"M. Hammer <i>et al.</i>, “Estimation of losses caused by sidewall roughness in thin-film lithium niobate rib and strip waveguides,” <i>Optics Express</i>, vol. 32, no. 13, p. 22878, 2024, doi: <a href=\"https://doi.org/10.1364/oe.521766\">10.1364/oe.521766</a>.","chicago":"Hammer, Manfred, Silia Babel, Henna Farheen, Laura Padberg, J. Christoph Scheytt, Christine Silberhorn, and Jens Förstner. “Estimation of Losses Caused by Sidewall Roughness in Thin-Film Lithium Niobate Rib and Strip Waveguides.” <i>Optics Express</i> 32, no. 13 (2024): 22878. <a href=\"https://doi.org/10.1364/oe.521766\">https://doi.org/10.1364/oe.521766</a>.","short":"M. Hammer, S. Babel, H. Farheen, L. Padberg, J.C. Scheytt, C. Silberhorn, J. Förstner, Optics Express 32 (2024) 22878."},"file_date_updated":"2024-06-10T11:25:00Z","oa":"1"},{"issue":"14","publication":"Optics Express","abstract":[{"lang":"eng","text":"Interference between single photons is key for many quantum optics experiments and applications in quantum technologies, such as quantum communication or computation. It is advantageous to operate the systems at telecommunication wavelengths and to integrate the setups for these applications in order to improve stability, compactness and scalability. A new promising material platform for integrated quantum optics is lithium niobate on insulator (LNOI). Here, we realise Hong-Ou-Mandel (HOM) interference between telecom photons from an engineered parametric down-conversion source in an LNOI directional coupler. The coupler has been designed and fabricated in house and provides close to perfect balanced beam splitting. We obtain a raw HOM visibility of (93.5 ± 0.7) %, limited mainly by the source performance and in good agreement with off-chip measurements. This lays the foundation for more sophisticated quantum experiments in LNOI."}],"date_created":"2023-07-03T14:08:36Z","department":[{"_id":"15"},{"_id":"230"},{"_id":"623"},{"_id":"288"}],"type":"journal_article","keyword":["Atomic and Molecular Physics","and Optics"],"author":[{"id":"63231","first_name":"Silia","orcid":"https://orcid.org/0000-0002-1568-2580","last_name":"Babel","full_name":"Babel, Silia"},{"full_name":"Bollmers, Laura","last_name":"Bollmers","first_name":"Laura","id":"61375"},{"id":"59545","last_name":"Massaro","first_name":"Marcello","orcid":"0000-0002-2539-7652","full_name":"Massaro, Marcello"},{"last_name":"Luo","first_name":"Kai Hong","orcid":"0000-0003-1008-4976","full_name":"Luo, Kai Hong","id":"36389"},{"id":"42777","full_name":"Stefszky, Michael","first_name":"Michael","last_name":"Stefszky"},{"first_name":"Federico","last_name":"Pegoraro","full_name":"Pegoraro, Federico","id":"88928"},{"id":"68236","first_name":"Philip","last_name":"Held","full_name":"Held, Philip"},{"first_name":"Harald","last_name":"Herrmann","full_name":"Herrmann, Harald","id":"216"},{"id":"13244","orcid":"https://orcid.org/0000-0002-5693-3083","first_name":"Christof","last_name":"Eigner","full_name":"Eigner, Christof"},{"id":"27150","full_name":"Brecht, Benjamin","first_name":"Benjamin","orcid":"0000-0003-4140-0556 ","last_name":"Brecht"},{"last_name":"Padberg","first_name":"Laura","full_name":"Padberg, Laura","id":"40300"},{"id":"26263","last_name":"Silberhorn","first_name":"Christine","full_name":"Silberhorn, Christine"}],"publication_identifier":{"issn":["1094-4087"]},"title":"Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler","year":"2023","intvolume":"        31","publication_status":"published","date_updated":"2023-07-05T07:58:31Z","language":[{"iso":"eng"}],"article_number":"23140","doi":"10.1364/oe.484126","citation":{"ama":"Babel S, Bollmers L, Massaro M, et al. Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler. <i>Optics Express</i>. 2023;31(14). doi:<a href=\"https://doi.org/10.1364/oe.484126\">10.1364/oe.484126</a>","bibtex":"@article{Babel_Bollmers_Massaro_Luo_Stefszky_Pegoraro_Held_Herrmann_Eigner_Brecht_et al._2023, title={Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler}, volume={31}, DOI={<a href=\"https://doi.org/10.1364/oe.484126\">10.1364/oe.484126</a>}, number={1423140}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Babel, Silia and Bollmers, Laura and Massaro, Marcello and Luo, Kai Hong and Stefszky, Michael and Pegoraro, Federico and Held, Philip and Herrmann, Harald and Eigner, Christof and Brecht, Benjamin and et al.}, year={2023} }","mla":"Babel, Silia, et al. “Demonstration of Hong-Ou-Mandel Interference in an LNOI Directional Coupler.” <i>Optics Express</i>, vol. 31, no. 14, 23140, Optica Publishing Group, 2023, doi:<a href=\"https://doi.org/10.1364/oe.484126\">10.1364/oe.484126</a>.","short":"S. Babel, L. Bollmers, M. Massaro, K.H. Luo, M. Stefszky, F. Pegoraro, P. Held, H. Herrmann, C. Eigner, B. Brecht, L. Padberg, C. Silberhorn, Optics Express 31 (2023).","chicago":"Babel, Silia, Laura Bollmers, Marcello Massaro, Kai Hong Luo, Michael Stefszky, Federico Pegoraro, Philip Held, et al. “Demonstration of Hong-Ou-Mandel Interference in an LNOI Directional Coupler.” <i>Optics Express</i> 31, no. 14 (2023). <a href=\"https://doi.org/10.1364/oe.484126\">https://doi.org/10.1364/oe.484126</a>.","apa":"Babel, S., Bollmers, L., Massaro, M., Luo, K. H., Stefszky, M., Pegoraro, F., Held, P., Herrmann, H., Eigner, C., Brecht, B., Padberg, L., &#38; Silberhorn, C. (2023). Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler. <i>Optics Express</i>, <i>31</i>(14), Article 23140. <a href=\"https://doi.org/10.1364/oe.484126\">https://doi.org/10.1364/oe.484126</a>","ieee":"S. Babel <i>et al.</i>, “Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler,” <i>Optics Express</i>, vol. 31, no. 14, Art. no. 23140, 2023, doi: <a href=\"https://doi.org/10.1364/oe.484126\">10.1364/oe.484126</a>."},"status":"public","_id":"45850","publisher":"Optica Publishing Group","volume":31,"user_id":"63231"}]