--- _id: '41035' article_number: '2200408' author: - first_name: Polina R. full_name: Sharapova, Polina R. id: '60286' last_name: Sharapova - first_name: Sergey S. full_name: Kruk, Sergey S. last_name: Kruk - first_name: Alexander S. full_name: Solntsev, Alexander S. last_name: Solntsev citation: ama: 'Sharapova PR, Kruk SS, Solntsev AS. Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons. Laser &amp; Photonics Reviews. Published online 2023. doi:10.1002/lpor.202200408' apa: 'Sharapova, P. R., Kruk, S. S., & Solntsev, A. S. (2023). Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons. Laser &amp; Photonics Reviews, Article 2200408. https://doi.org/10.1002/lpor.202200408' bibtex: '@article{Sharapova_Kruk_Solntsev_2023, title={Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons}, DOI={10.1002/lpor.202200408}, number={2200408}, journal={Laser &amp; Photonics Reviews}, publisher={Wiley}, author={Sharapova, Polina R. and Kruk, Sergey S. and Solntsev, Alexander S.}, year={2023} }' chicago: 'Sharapova, Polina R., Sergey S. Kruk, and Alexander S. Solntsev. “Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons.” Laser &amp; Photonics Reviews, 2023. https://doi.org/10.1002/lpor.202200408.' ieee: 'P. R. Sharapova, S. S. Kruk, and A. S. Solntsev, “Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons,” Laser &amp; Photonics Reviews, Art. no. 2200408, 2023, doi: 10.1002/lpor.202200408.' mla: 'Sharapova, Polina R., et al. “Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons.” Laser &amp; Photonics Reviews, 2200408, Wiley, 2023, doi:10.1002/lpor.202200408.' short: P.R. Sharapova, S.S. Kruk, A.S. Solntsev, Laser &amp; Photonics Reviews (2023). date_created: 2023-01-30T18:24:45Z date_updated: 2023-02-10T15:46:53Z department: - _id: '15' - _id: '170' - _id: '230' - _id: '569' - _id: '429' doi: 10.1002/lpor.202200408 keyword: - Condensed Matter Physics - Atomic and Molecular Physics - and Optics - Electronic - Optical and Magnetic Materials language: - iso: eng publication: Laser & Photonics Reviews publication_identifier: issn: - 1863-8880 - 1863-8899 publication_status: published publisher: Wiley status: public title: 'Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons' type: journal_article user_id: '14931' year: '2023' ... --- _id: '36416' author: - first_name: Jianbo full_name: De, Jianbo last_name: De - first_name: Xuekai full_name: Ma, Xuekai id: '59416' last_name: Ma - first_name: Fan full_name: Yin, Fan last_name: Yin - first_name: Jiahuan full_name: Ren, Jiahuan last_name: Ren - first_name: Jiannian full_name: Yao, Jiannian last_name: Yao - first_name: Stefan full_name: Schumacher, Stefan id: '27271' last_name: Schumacher orcid: 0000-0003-4042-4951 - first_name: Qing full_name: Liao, Qing last_name: Liao - first_name: Hongbing full_name: Fu, Hongbing last_name: Fu - first_name: Guillaume full_name: Malpuech, Guillaume last_name: Malpuech - first_name: Dmitry full_name: Solnyshkov, Dmitry last_name: Solnyshkov citation: ama: De J, Ma X, Yin F, et al. Room-Temperature Electrical Field-Enhanced Ultrafast Switch in Organic Microcavity Polariton Condensates. Journal of the American Chemical Society (JACS). 2023;145(3):1557-1563. doi:10.1021/jacs.2c07557 apa: De, J., Ma, X., Yin, F., Ren, J., Yao, J., Schumacher, S., Liao, Q., Fu, H., Malpuech, G., & Solnyshkov, D. (2023). Room-Temperature Electrical Field-Enhanced Ultrafast Switch in Organic Microcavity Polariton Condensates. Journal of the American Chemical Society (JACS), 145(3), 1557–1563. https://doi.org/10.1021/jacs.2c07557 bibtex: '@article{De_Ma_Yin_Ren_Yao_Schumacher_Liao_Fu_Malpuech_Solnyshkov_2023, title={Room-Temperature Electrical Field-Enhanced Ultrafast Switch in Organic Microcavity Polariton Condensates}, volume={145}, DOI={10.1021/jacs.2c07557}, number={3}, journal={Journal of the American Chemical Society (JACS)}, publisher={American Chemical Society (ACS)}, author={De, Jianbo and Ma, Xuekai and Yin, Fan and Ren, Jiahuan and Yao, Jiannian and Schumacher, Stefan and Liao, Qing and Fu, Hongbing and Malpuech, Guillaume and Solnyshkov, Dmitry}, year={2023}, pages={1557–1563} }' chicago: 'De, Jianbo, Xuekai Ma, Fan Yin, Jiahuan Ren, Jiannian Yao, Stefan Schumacher, Qing Liao, Hongbing Fu, Guillaume Malpuech, and Dmitry Solnyshkov. “Room-Temperature Electrical Field-Enhanced Ultrafast Switch in Organic Microcavity Polariton Condensates.” Journal of the American Chemical Society (JACS) 145, no. 3 (2023): 1557–63. https://doi.org/10.1021/jacs.2c07557.' ieee: 'J. De et al., “Room-Temperature Electrical Field-Enhanced Ultrafast Switch in Organic Microcavity Polariton Condensates,” Journal of the American Chemical Society (JACS), vol. 145, no. 3, pp. 1557–1563, 2023, doi: 10.1021/jacs.2c07557.' mla: De, Jianbo, et al. “Room-Temperature Electrical Field-Enhanced Ultrafast Switch in Organic Microcavity Polariton Condensates.” Journal of the American Chemical Society (JACS), vol. 145, no. 3, American Chemical Society (ACS), 2023, pp. 1557–63, doi:10.1021/jacs.2c07557. short: J. De, X. Ma, F. Yin, J. Ren, J. Yao, S. Schumacher, Q. Liao, H. Fu, G. Malpuech, D. Solnyshkov, Journal of the American Chemical Society (JACS) 145 (2023) 1557–1563. date_created: 2023-01-12T12:07:52Z date_updated: 2023-04-20T15:17:54Z department: - _id: '15' - _id: '170' - _id: '705' - _id: '297' - _id: '230' - _id: '429' - _id: '35' doi: 10.1021/jacs.2c07557 intvolume: ' 145' issue: '3' keyword: - Colloid and Surface Chemistry - Biochemistry - General Chemistry - Catalysis language: - iso: eng page: 1557-1563 project: - _id: '53' name: 'TRR 142: TRR 142' - _id: '54' name: 'TRR 142 - A: TRR 142 - Project Area A' - _id: '61' name: 'TRR 142 - A4: TRR 142 - Subproject A4' publication: Journal of the American Chemical Society (JACS) publication_identifier: issn: - 0002-7863 - 1520-5126 publication_status: published publisher: American Chemical Society (ACS) status: public title: Room-Temperature Electrical Field-Enhanced Ultrafast Switch in Organic Microcavity Polariton Condensates type: journal_article user_id: '16199' volume: 145 year: '2023' ... --- _id: '43051' abstract: - lang: eng text: We demonstrate the numerical and experimental realization of optimized optical traveling-wave antennas made of low-loss dielectric materials. These antennas exhibit highly directive radiation patterns and our studies reveal that this nature comes from two dominant guided TE modes excited in the waveguide-like director of the antenna, in addition to the leaky modes. The optimized antennas possess a broadband nature and have a nearunity radiation efficiency at an operational wavelength of 780 nm. Compared to the previously studied plasmonic antennas for photon emission, our all-dielectric approach demonstrates a new class of highly directional, low-loss, and broadband optical antennas. author: - first_name: Henna full_name: Farheen, Henna last_name: Farheen - first_name: Lok-Yee full_name: Yan, Lok-Yee last_name: Yan - first_name: Till full_name: Leuteritz, Till last_name: Leuteritz - first_name: Siqi full_name: Qiao, Siqi last_name: Qiao - first_name: Florian full_name: Spreyer, Florian last_name: Spreyer - first_name: Christian full_name: Schlickriede, Christian last_name: Schlickriede - first_name: Viktor full_name: Quiring, Viktor last_name: Quiring - first_name: Christof full_name: Eigner, Christof last_name: Eigner - first_name: Christine full_name: Silberhorn, Christine id: '26263' last_name: Silberhorn - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Stefan full_name: Linden, Stefan last_name: Linden - first_name: Viktor full_name: Myroshnychenko, Viktor id: '46371' last_name: Myroshnychenko - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: 'Farheen H, Yan L-Y, Leuteritz T, et al. Tailoring the directive nature of optical waveguide antennas. In: García-Blanco SM, Cheben P, eds. Integrated Optics: Devices, Materials, and Technologies XXVII. SPIE; 2023:124241E. doi:10.1117/12.2658921' apa: 'Farheen, H., Yan, L.-Y., Leuteritz, T., Qiao, S., Spreyer, F., Schlickriede, C., Quiring, V., Eigner, C., Silberhorn, C., Zentgraf, T., Linden, S., Myroshnychenko, V., & Förstner, J. (2023). Tailoring the directive nature of optical waveguide antennas. In S. M. García-Blanco & P. Cheben (Eds.), Integrated Optics: Devices, Materials, and Technologies XXVII (p. 124241E). SPIE. https://doi.org/10.1117/12.2658921' bibtex: '@inproceedings{Farheen_Yan_Leuteritz_Qiao_Spreyer_Schlickriede_Quiring_Eigner_Silberhorn_Zentgraf_et al._2023, title={Tailoring the directive nature of optical waveguide antennas}, DOI={10.1117/12.2658921}, booktitle={Integrated Optics: Devices, Materials, and Technologies XXVII}, publisher={SPIE}, author={Farheen, Henna and Yan, Lok-Yee and Leuteritz, Till and Qiao, Siqi and Spreyer, Florian and Schlickriede, Christian and Quiring, Viktor and Eigner, Christof and Silberhorn, Christine and Zentgraf, Thomas and et al.}, editor={García-Blanco, Sonia M. and Cheben, Pavel}, year={2023}, pages={124241E} }' chicago: 'Farheen, Henna, Lok-Yee Yan, Till Leuteritz, Siqi Qiao, Florian Spreyer, Christian Schlickriede, Viktor Quiring, et al. “Tailoring the Directive Nature of Optical Waveguide Antennas.” In Integrated Optics: Devices, Materials, and Technologies XXVII, edited by Sonia M. García-Blanco and Pavel Cheben, 124241E. SPIE, 2023. https://doi.org/10.1117/12.2658921.' ieee: 'H. Farheen et al., “Tailoring the directive nature of optical waveguide antennas,” in Integrated Optics: Devices, Materials, and Technologies XXVII, 2023, p. 124241E, doi: 10.1117/12.2658921.' mla: 'Farheen, Henna, et al. “Tailoring the Directive Nature of Optical Waveguide Antennas.” Integrated Optics: Devices, Materials, and Technologies XXVII, edited by Sonia M. García-Blanco and Pavel Cheben, SPIE, 2023, p. 124241E, doi:10.1117/12.2658921.' short: 'H. Farheen, L.-Y. Yan, T. Leuteritz, S. Qiao, F. Spreyer, C. Schlickriede, V. Quiring, C. Eigner, C. Silberhorn, T. Zentgraf, S. Linden, V. Myroshnychenko, J. Förstner, in: S.M. García-Blanco, P. Cheben (Eds.), Integrated Optics: Devices, Materials, and Technologies XXVII, SPIE, 2023, p. 124241E.' date_created: 2023-03-21T12:28:31Z date_updated: 2023-03-22T09:26:25Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' doi: 10.1117/12.2658921 editor: - first_name: Sonia M. full_name: García-Blanco, Sonia M. last_name: García-Blanco - first_name: Pavel full_name: Cheben, Pavel last_name: Cheben file: - access_level: local content_type: application/pdf creator: fossie date_created: 2023-03-22T09:25:57Z date_updated: 2023-03-22T09:25:57Z file_id: '43062' file_name: 2023-01 Poster Photonics West Henna OWA_A0.pdf file_size: 1426599 relation: main_file file_date_updated: 2023-03-22T09:25:57Z has_accepted_license: '1' keyword: - tet_topic_opticalantenna language: - iso: eng page: 124241E publication: 'Integrated Optics: Devices, Materials, and Technologies XXVII' publication_status: published publisher: SPIE status: public title: Tailoring the directive nature of optical waveguide antennas type: conference user_id: '158' year: '2023' ... --- _id: '43052' abstract: - lang: eng text: We demonstrate a large-scale two dimensional silicon-based optical phased array (OPA) composed of nanoantennas with circular gratings that are balanced in power and aligned in phase, required for producing desired radiation patterns in the far-field. The OPAs are numerically optimized to have an upward efficiency of up to 90%, targeting radiation concentration mainly in the field of view. We envision that our OPAs have the ability of generating complex holographic images, rendering them an attractive candidate for a wide range of applications like LiDAR sensors, optical trapping, optogenetic stimulation and augmented-reality displays. author: - first_name: Henna full_name: Farheen, Henna last_name: Farheen - first_name: Andreas full_name: Strauch, Andreas last_name: Strauch - first_name: J. Christoph full_name: Scheytt, J. Christoph id: '37144' last_name: Scheytt orcid: https://orcid.org/0000-0002-5950-6618 - first_name: Viktor full_name: Myroshnychenko, Viktor id: '46371' last_name: Myroshnychenko - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: 'Farheen H, Strauch A, Scheytt JC, Myroshnychenko V, Förstner J. Optimized silicon antennas for optical phased arrays. In: García-Blanco SM, Cheben P, eds. Integrated Optics: Devices, Materials, and Technologies XXVII. SPIE; 2023:124241D. doi:10.1117/12.2658716' apa: 'Farheen, H., Strauch, A., Scheytt, J. C., Myroshnychenko, V., & Förstner, J. (2023). Optimized silicon antennas for optical phased arrays. In S. M. García-Blanco & P. Cheben (Eds.), Integrated Optics: Devices, Materials, and Technologies XXVII (p. 124241D). SPIE. https://doi.org/10.1117/12.2658716' bibtex: '@inproceedings{Farheen_Strauch_Scheytt_Myroshnychenko_Förstner_2023, title={Optimized silicon antennas for optical phased arrays}, DOI={10.1117/12.2658716}, booktitle={Integrated Optics: Devices, Materials, and Technologies XXVII}, publisher={SPIE}, author={Farheen, Henna and Strauch, Andreas and Scheytt, J. Christoph and Myroshnychenko, Viktor and Förstner, Jens}, editor={García-Blanco, Sonia M. and Cheben, Pavel}, year={2023}, pages={124241D} }' chicago: 'Farheen, Henna, Andreas Strauch, J. Christoph Scheytt, Viktor Myroshnychenko, and Jens Förstner. “Optimized Silicon Antennas for Optical Phased Arrays.” In Integrated Optics: Devices, Materials, and Technologies XXVII, edited by Sonia M. García-Blanco and Pavel Cheben, 124241D. SPIE, 2023. https://doi.org/10.1117/12.2658716.' ieee: 'H. Farheen, A. Strauch, J. C. Scheytt, V. Myroshnychenko, and J. Förstner, “Optimized silicon antennas for optical phased arrays,” in Integrated Optics: Devices, Materials, and Technologies XXVII, 2023, p. 124241D, doi: 10.1117/12.2658716.' mla: 'Farheen, Henna, et al. “Optimized Silicon Antennas for Optical Phased Arrays.” Integrated Optics: Devices, Materials, and Technologies XXVII, edited by Sonia M. García-Blanco and Pavel Cheben, SPIE, 2023, p. 124241D, doi:10.1117/12.2658716.' short: 'H. Farheen, A. Strauch, J.C. Scheytt, V. Myroshnychenko, J. Förstner, in: S.M. García-Blanco, P. Cheben (Eds.), Integrated Optics: Devices, Materials, and Technologies XXVII, SPIE, 2023, p. 124241D.' date_created: 2023-03-21T12:35:18Z date_updated: 2023-03-22T20:53:50Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' doi: 10.1117/12.2658716 editor: - first_name: Sonia M. full_name: García-Blanco, Sonia M. last_name: García-Blanco - first_name: Pavel full_name: Cheben, Pavel last_name: Cheben file: - access_level: request content_type: application/pdf creator: fossie date_created: 2023-03-22T07:41:49Z date_updated: 2023-03-22T20:53:11Z file_id: '43055' file_name: 2023-01 Poster Photonics West Henna OPA_A0.pdf file_size: 1747396 relation: main_file file_date_updated: 2023-03-22T20:53:11Z has_accepted_license: '1' keyword: - tet_topic_opticalantenna language: - iso: eng page: '124241D ' publication: 'Integrated Optics: Devices, Materials, and Technologies XXVII' publication_status: published publisher: SPIE status: public title: Optimized silicon antennas for optical phased arrays type: conference user_id: '14931' year: '2023' ... --- _id: '43245' abstract: - lang: eng 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. author: - first_name: Manfred full_name: Hammer, Manfred id: '48077' last_name: Hammer orcid: 0000-0002-6331-9348 - first_name: Henna full_name: Farheen, Henna last_name: Farheen - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: Hammer M, Farheen H, Förstner J. How to suppress radiative losses in high-contrast integrated Bragg gratings. Journal of the Optical Society of America B. 2023;40(4):862. doi:10.1364/josab.485725 apa: Hammer, M., Farheen, H., & Förstner, J. (2023). How to suppress radiative losses in high-contrast integrated Bragg gratings. Journal of the Optical Society of America B, 40(4), 862. https://doi.org/10.1364/josab.485725 bibtex: '@article{Hammer_Farheen_Förstner_2023, title={How to suppress radiative losses in high-contrast integrated Bragg gratings}, volume={40}, DOI={10.1364/josab.485725}, 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} }' chicago: 'Hammer, Manfred, Henna Farheen, and Jens Förstner. “How to Suppress Radiative Losses in High-Contrast Integrated Bragg Gratings.” Journal of the Optical Society of America B 40, no. 4 (2023): 862. https://doi.org/10.1364/josab.485725.' ieee: 'M. Hammer, H. Farheen, and J. Förstner, “How to suppress radiative losses in high-contrast integrated Bragg gratings,” Journal of the Optical Society of America B, vol. 40, no. 4, p. 862, 2023, doi: 10.1364/josab.485725.' mla: Hammer, Manfred, et al. “How to Suppress Radiative Losses in High-Contrast Integrated Bragg Gratings.” Journal of the Optical Society of America B, vol. 40, no. 4, Optica Publishing Group, 2023, p. 862, doi:10.1364/josab.485725. short: M. Hammer, H. Farheen, J. Förstner, Journal of the Optical Society of America B 40 (2023) 862. date_created: 2023-03-31T13:04:43Z date_updated: 2023-04-20T10:03:40Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' doi: 10.1364/josab.485725 file: - access_level: open_access content_type: application/pdf creator: fossie date_created: 2023-03-31T13:14:59Z date_updated: 2023-03-31T13:14:59Z file_id: '43247' file_name: ogr-afterreview.pdf file_size: 1982311 relation: main_file file_date_updated: 2023-03-31T13:14:59Z has_accepted_license: '1' intvolume: ' 40' issue: '4' keyword: - tet_topic_waveguide language: - iso: eng oa: '1' page: '862' project: - _id: '53' name: 'TRR 142: TRR 142' - _id: '55' name: 'TRR 142 - B: TRR 142 - Project Area B' - _id: '167' name: 'TRR 142 - B06: TRR 142 - Subproject B06' publication: Journal of the Optical Society of America B publication_identifier: issn: - 0740-3224 - 1520-8540 publication_status: published publisher: Optica Publishing Group status: public title: How to suppress radiative losses in high-contrast integrated Bragg gratings type: journal_article user_id: '158' volume: 40 year: '2023' ... --- _id: '43132' author: - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 - first_name: S. full_name: Grisard, S. last_name: Grisard - first_name: A.V. full_name: Trifonov, A.V. last_name: Trifonov - first_name: Hendrik full_name: Rose, Hendrik id: '55958' last_name: Rose orcid: 0000-0002-3079-5428 - first_name: R. full_name: Reichhardt, R. last_name: Reichhardt - first_name: Matthias full_name: Reichelt, Matthias id: '138' last_name: Reichelt - first_name: C. full_name: Schneider, C. last_name: Schneider - first_name: M. full_name: Kamp, M. last_name: Kamp - first_name: S. full_name: Höfling, S. last_name: Höfling - first_name: M. full_name: Bayer, M. last_name: Bayer - first_name: I.A full_name: Akimov, I.A last_name: Akimov citation: ama: Meier T, Grisard S, Trifonov AV, et al. Temporal sorting of optical multi-wave-mixing processes in semiconductor quantum dots. arxiv:230202480. Published online 2023. apa: Meier, T., Grisard, S., Trifonov, A. V., Rose, H., Reichhardt, R., Reichelt, M., Schneider, C., Kamp, M., Höfling, S., Bayer, M., & Akimov, I. A. (2023). Temporal sorting of optical multi-wave-mixing processes in semiconductor quantum dots. In arxiv:2302.02480. bibtex: '@article{Meier_Grisard_Trifonov_Rose_Reichhardt_Reichelt_Schneider_Kamp_Höfling_Bayer_et al._2023, title={Temporal sorting of optical multi-wave-mixing processes in semiconductor quantum dots}, journal={arxiv:2302.02480}, author={Meier, Torsten and Grisard, S. and Trifonov, A.V. and Rose, Hendrik and Reichhardt, R. and Reichelt, Matthias and Schneider, C. and Kamp, M. and Höfling, S. and Bayer, M. and et al.}, year={2023} }' chicago: Meier, Torsten, S. Grisard, A.V. Trifonov, Hendrik Rose, R. Reichhardt, Matthias Reichelt, C. Schneider, et al. “Temporal Sorting of Optical Multi-Wave-Mixing Processes in Semiconductor Quantum Dots.” Arxiv:2302.02480, 2023. ieee: T. Meier et al., “Temporal sorting of optical multi-wave-mixing processes in semiconductor quantum dots,” arxiv:2302.02480. 2023. mla: Meier, Torsten, et al. “Temporal Sorting of Optical Multi-Wave-Mixing Processes in Semiconductor Quantum Dots.” Arxiv:2302.02480, 2023. short: T. Meier, S. Grisard, A.V. Trifonov, H. Rose, R. Reichhardt, M. Reichelt, C. Schneider, M. Kamp, S. Höfling, M. Bayer, I.A. Akimov, Arxiv:2302.02480 (2023). date_created: 2023-03-28T12:45:46Z date_updated: 2023-04-20T14:45:05Z department: - _id: '293' - _id: '35' - _id: '15' - _id: '170' - _id: '230' - _id: '429' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2302.02480 oa: '1' project: - _id: '53' name: 'TRR 142: TRR 142' - _id: '54' name: 'TRR 142 - A: TRR 142 - Project Area A' - _id: '59' name: 'TRR 142 - A02: TRR 142 - Subproject A02' - _id: '165' name: 'TRR 142 - A10: TRR 142 - Subproject A10' publication: arxiv:2302.02480 status: public title: Temporal sorting of optical multi-wave-mixing processes in semiconductor quantum dots type: preprint user_id: '16199' year: '2023' ... --- _id: '44050' article_number: '042420' author: - first_name: Jan full_name: Sperling, Jan id: '75127' last_name: Sperling orcid: 0000-0002-5844-3205 - first_name: Elizabeth full_name: Agudelo, Elizabeth last_name: Agudelo citation: ama: 'Sperling J, Agudelo E. Entanglement of particles versus entanglement of fields: Independent quantum resources. Physical Review A. 2023;107(4). doi:10.1103/physreva.107.042420' apa: 'Sperling, J., & Agudelo, E. (2023). Entanglement of particles versus entanglement of fields: Independent quantum resources. Physical Review A, 107(4), Article 042420. https://doi.org/10.1103/physreva.107.042420' bibtex: '@article{Sperling_Agudelo_2023, title={Entanglement of particles versus entanglement of fields: Independent quantum resources}, volume={107}, DOI={10.1103/physreva.107.042420}, number={4042420}, journal={Physical Review A}, publisher={American Physical Society (APS)}, author={Sperling, Jan and Agudelo, Elizabeth}, year={2023} }' chicago: 'Sperling, Jan, and Elizabeth Agudelo. “Entanglement of Particles versus Entanglement of Fields: Independent Quantum Resources.” Physical Review A 107, no. 4 (2023). https://doi.org/10.1103/physreva.107.042420.' ieee: 'J. Sperling and E. Agudelo, “Entanglement of particles versus entanglement of fields: Independent quantum resources,” Physical Review A, vol. 107, no. 4, Art. no. 042420, 2023, doi: 10.1103/physreva.107.042420.' mla: 'Sperling, Jan, and Elizabeth Agudelo. “Entanglement of Particles versus Entanglement of Fields: Independent Quantum Resources.” Physical Review A, vol. 107, no. 4, 042420, American Physical Society (APS), 2023, doi:10.1103/physreva.107.042420.' short: J. Sperling, E. Agudelo, Physical Review A 107 (2023). date_created: 2023-04-18T06:55:59Z date_updated: 2023-04-20T15:03:33Z department: - _id: '623' - _id: '15' - _id: '170' - _id: '706' - _id: '429' - _id: '35' doi: 10.1103/physreva.107.042420 intvolume: ' 107' issue: '4' language: - iso: eng project: - _id: '53' name: 'TRR 142: TRR 142' - _id: '56' name: 'TRR 142 - C: TRR 142 - Project Area C' - _id: '174' name: 'TRR 142 - C10: TRR 142 - Subproject C10' publication: Physical Review A publication_identifier: issn: - 2469-9926 - 2469-9934 publication_status: published publisher: American Physical Society (APS) status: public title: 'Entanglement of particles versus entanglement of fields: Independent quantum resources' type: journal_article user_id: '16199' volume: 107 year: '2023' ... --- _id: '40477' article_number: '012426' author: - first_name: Jan full_name: Sperling, Jan id: '75127' last_name: Sperling orcid: 0000-0002-5844-3205 - first_name: Ilaria full_name: Gianani, Ilaria last_name: Gianani - first_name: Marco full_name: Barbieri, Marco last_name: Barbieri - first_name: Elizabeth full_name: Agudelo, Elizabeth last_name: Agudelo citation: ama: 'Sperling J, Gianani I, Barbieri M, Agudelo E. Detector entanglement: Quasidistributions for Bell-state measurements. Physical Review A. 2023;107(1). doi:10.1103/physreva.107.012426' apa: 'Sperling, J., Gianani, I., Barbieri, M., & Agudelo, E. (2023). Detector entanglement: Quasidistributions for Bell-state measurements. Physical Review A, 107(1), Article 012426. https://doi.org/10.1103/physreva.107.012426' bibtex: '@article{Sperling_Gianani_Barbieri_Agudelo_2023, title={Detector entanglement: Quasidistributions for Bell-state measurements}, volume={107}, DOI={10.1103/physreva.107.012426}, number={1012426}, journal={Physical Review A}, publisher={American Physical Society (APS)}, author={Sperling, Jan and Gianani, Ilaria and Barbieri, Marco and Agudelo, Elizabeth}, year={2023} }' chicago: 'Sperling, Jan, Ilaria Gianani, Marco Barbieri, and Elizabeth Agudelo. “Detector Entanglement: Quasidistributions for Bell-State Measurements.” Physical Review A 107, no. 1 (2023). https://doi.org/10.1103/physreva.107.012426.' ieee: 'J. Sperling, I. Gianani, M. Barbieri, and E. Agudelo, “Detector entanglement: Quasidistributions for Bell-state measurements,” Physical Review A, vol. 107, no. 1, Art. no. 012426, 2023, doi: 10.1103/physreva.107.012426.' mla: 'Sperling, Jan, et al. “Detector Entanglement: Quasidistributions for Bell-State Measurements.” Physical Review A, vol. 107, no. 1, 012426, American Physical Society (APS), 2023, doi:10.1103/physreva.107.012426.' short: J. Sperling, I. Gianani, M. Barbieri, E. Agudelo, Physical Review A 107 (2023). date_created: 2023-01-27T08:43:45Z date_updated: 2023-04-20T15:16:38Z department: - _id: '623' - _id: '15' - _id: '170' - _id: '706' - _id: '429' - _id: '35' doi: 10.1103/physreva.107.012426 intvolume: ' 107' issue: '1' language: - iso: eng project: - _id: '53' name: 'TRR 142: TRR 142' publication: Physical Review A publication_identifier: issn: - 2469-9926 - 2469-9934 publication_status: published publisher: American Physical Society (APS) status: public title: 'Detector entanglement: Quasidistributions for Bell-state measurements' type: journal_article user_id: '16199' volume: 107 year: '2023' ... --- _id: '42973' article_number: '113601' article_type: letter_note author: - first_name: Carolin full_name: Lüders, Carolin last_name: Lüders - first_name: Matthias full_name: Pukrop, Matthias id: '64535' last_name: Pukrop - first_name: Franziska full_name: Barkhausen, Franziska id: '63631' last_name: Barkhausen - first_name: Elena full_name: Rozas, Elena last_name: Rozas - first_name: Christian full_name: Schneider, Christian last_name: Schneider - first_name: Sven full_name: Höfling, Sven last_name: Höfling - first_name: Jan full_name: Sperling, Jan id: '75127' last_name: Sperling orcid: 0000-0002-5844-3205 - first_name: Stefan full_name: Schumacher, Stefan id: '27271' last_name: Schumacher orcid: 0000-0003-4042-4951 - first_name: Marc full_name: Aßmann, Marc last_name: Aßmann citation: ama: Lüders C, Pukrop M, Barkhausen F, et al. Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography. Physical Review Letters. 2023;130(11). doi:10.1103/physrevlett.130.113601 apa: Lüders, C., Pukrop, M., Barkhausen, F., Rozas, E., Schneider, C., Höfling, S., Sperling, J., Schumacher, S., & Aßmann, M. (2023). Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography. Physical Review Letters, 130(11), Article 113601. https://doi.org/10.1103/physrevlett.130.113601 bibtex: '@article{Lüders_Pukrop_Barkhausen_Rozas_Schneider_Höfling_Sperling_Schumacher_Aßmann_2023, title={Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography}, volume={130}, DOI={10.1103/physrevlett.130.113601}, number={11113601}, journal={Physical Review Letters}, publisher={American Physical Society (APS)}, author={Lüders, Carolin and Pukrop, Matthias and Barkhausen, Franziska and Rozas, Elena and Schneider, Christian and Höfling, Sven and Sperling, Jan and Schumacher, Stefan and Aßmann, Marc}, year={2023} }' chicago: Lüders, Carolin, Matthias Pukrop, Franziska Barkhausen, Elena Rozas, Christian Schneider, Sven Höfling, Jan Sperling, Stefan Schumacher, and Marc Aßmann. “Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography.” Physical Review Letters 130, no. 11 (2023). https://doi.org/10.1103/physrevlett.130.113601. ieee: 'C. Lüders et al., “Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography,” Physical Review Letters, vol. 130, no. 11, Art. no. 113601, 2023, doi: 10.1103/physrevlett.130.113601.' mla: Lüders, Carolin, et al. “Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography.” Physical Review Letters, vol. 130, no. 11, 113601, American Physical Society (APS), 2023, doi:10.1103/physrevlett.130.113601. short: C. Lüders, M. Pukrop, F. Barkhausen, E. Rozas, C. Schneider, S. Höfling, J. Sperling, S. Schumacher, M. Aßmann, Physical Review Letters 130 (2023). date_created: 2023-03-14T07:50:56Z date_updated: 2023-04-20T15:28:42Z department: - _id: '623' - _id: '15' - _id: '170' - _id: '706' - _id: '429' - _id: '230' - _id: '35' - _id: '297' doi: 10.1103/physrevlett.130.113601 intvolume: ' 130' issue: '11' keyword: - General Physics and Astronomy language: - iso: eng project: - _id: '53' name: 'TRR 142: TRR 142' - _id: '56' name: 'TRR 142 - C: TRR 142 - Project Area C' - _id: '174' name: 'TRR 142 - C10: TRR 142 - Subproject C10' - _id: '173' name: 'TRR 142 - C09: TRR 142 - Subproject C09' publication: Physical Review Letters publication_identifier: issn: - 0031-9007 - 1079-7114 publication_status: published publisher: American Physical Society (APS) status: public title: Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography type: journal_article user_id: '16199' volume: 130 year: '2023' ... --- _id: '44097' abstract: - lang: eng text: We present strong enhancement of third harmonic generation in an amorphous silicon metasurface consisting of elliptical nano resonators. We show that this enhancement originates from a new type of multi-mode Fano mechanism. These ‘Super-Fano’ resonances are investigated numerically in great detail using full-wave simulations. The theoretically predicted behavior of the metasurface is experimentally verified by linear and nonlinear transmission spectroscopy. Moreover, quantitative nonlinear measurements are performed, in which an absolute conversion efficiency as high as ηmax ≈ 2.8 × 10−7 a peak power intensity of 1.2 GW cm−2 is found. Compared to an unpatterned silicon film of the same thickness amplification factors of up to ~900 are demonstrated. Our results pave the way to exploiting a strong Fano-type multi-mode coupling in metasurfaces for high THG in potential applications. article_type: original author: - first_name: David full_name: Hähnel, David last_name: Hähnel - first_name: Christian full_name: Golla, Christian last_name: Golla - first_name: Maximilian full_name: Albert, Maximilian last_name: Albert - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Viktor full_name: Myroshnychenko, Viktor id: '46371' last_name: Myroshnychenko - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Cedrik full_name: Meier, Cedrik id: '20798' last_name: Meier orcid: https://orcid.org/0000-0002-3787-3572 citation: ama: 'Hähnel D, Golla C, Albert M, et al. A multi-mode super-fano mechanism for enhanced third harmonic generation in silicon metasurfaces. Light: Science & Applications. 2023;12(1):97. doi:https://doi.org/10.1038/s41377-023-01134-1' apa: 'Hähnel, D., Golla, C., Albert, M., Zentgraf, T., Myroshnychenko, V., Förstner, J., & Meier, C. (2023). A multi-mode super-fano mechanism for enhanced third harmonic generation in silicon metasurfaces. Light: Science & Applications, 12(1), 97. https://doi.org/10.1038/s41377-023-01134-1' bibtex: '@article{Hähnel_Golla_Albert_Zentgraf_Myroshnychenko_Förstner_Meier_2023, title={A multi-mode super-fano mechanism for enhanced third harmonic generation in silicon metasurfaces}, volume={12}, DOI={https://doi.org/10.1038/s41377-023-01134-1}, number={1}, journal={Light: Science & Applications}, publisher={Springer Nature}, author={Hähnel, David and Golla, Christian and Albert, Maximilian and Zentgraf, Thomas and Myroshnychenko, Viktor and Förstner, Jens and Meier, Cedrik}, year={2023}, pages={97} }' chicago: 'Hähnel, David, Christian Golla, Maximilian Albert, Thomas Zentgraf, Viktor Myroshnychenko, Jens Förstner, and Cedrik Meier. “A Multi-Mode Super-Fano Mechanism for Enhanced Third Harmonic Generation in Silicon Metasurfaces.” Light: Science & Applications 12, no. 1 (2023): 97. https://doi.org/10.1038/s41377-023-01134-1.' ieee: 'D. Hähnel et al., “A multi-mode super-fano mechanism for enhanced third harmonic generation in silicon metasurfaces,” Light: Science & Applications, vol. 12, no. 1, p. 97, 2023, doi: https://doi.org/10.1038/s41377-023-01134-1.' mla: 'Hähnel, David, et al. “A Multi-Mode Super-Fano Mechanism for Enhanced Third Harmonic Generation in Silicon Metasurfaces.” Light: Science & Applications, vol. 12, no. 1, Springer Nature, 2023, p. 97, doi:https://doi.org/10.1038/s41377-023-01134-1.' short: 'D. Hähnel, C. Golla, M. Albert, T. Zentgraf, V. Myroshnychenko, J. Förstner, C. Meier, Light: Science & Applications 12 (2023) 97.' date_created: 2023-04-21T09:45:07Z date_updated: 2023-04-21T10:04:05Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' doi: https://doi.org/10.1038/s41377-023-01134-1 file: - access_level: open_access content_type: application/pdf creator: fossie date_created: 2023-04-21T10:00:27Z date_updated: 2023-04-21T10:00:27Z file_id: '44098' file_name: 2023-04 Hähnel - LSA - Multimode Fano THG.pdf file_size: 2088874 relation: main_file - access_level: open_access content_type: application/pdf creator: fossie date_created: 2023-04-21T10:03:30Z date_updated: 2023-04-21T10:03:30Z file_id: '44099' file_name: 2023-04 Hähnel - LSA - Multimode Fano THG (supplementary information).pdf file_size: 986743 relation: supplementary_material file_date_updated: 2023-04-21T10:03:30Z has_accepted_license: '1' intvolume: ' 12' issue: '1' keyword: - tet_topic_meta language: - iso: eng oa: '1' page: '97' publication: 'Light: Science & Applications' publication_identifier: issn: - 2047-7538 publication_status: published publisher: Springer Nature quality_controlled: '1' status: public title: A multi-mode super-fano mechanism for enhanced third harmonic generation in silicon metasurfaces type: journal_article user_id: '158' volume: 12 year: '2023' ... --- _id: '45596' abstract: - lang: eng text: Dielectric metasurfaces provide a unique platform for efficient harmonic generation and optical wavefront manipulation at the nanoscale. Tailoring phase and amplitude of a nonlinearly generated wave with a high emission efficiency using resonance-based metasurfaces is a challenging task that often requires state-of-the-art numerical methods. Here, we propose a simple yet effective approach combining a sampling method with a Monte Carlo approach to design the third-harmonic wavefront generated by all-dielectric metasurfaces composed of elliptical silicon nanodisks. Using this approach, we theoretically demonstrate the full nonlinear 2π phase control with a uniform and highest possible amplitude in the considered parameter space, allowing us to design metasurfaces operating as third harmonic beam deflectors capable of steering light into a desired direction with high emission efficiency. The TH beam deflection with a record calculated average conversion efficiency of 1.2 × 10–1 W–2 is achieved. We anticipate that the proposed approach will be widely applied as alternative to commonly used optimization algorithms with higher complexity and implementation effort for the design of metasurfaces with other holographic functionalities. author: - first_name: David full_name: Hähnel, David last_name: Hähnel - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Viktor full_name: Myroshnychenko, Viktor id: '46371' last_name: Myroshnychenko citation: ama: Hähnel D, Förstner J, Myroshnychenko V. Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces. ACS Photonics. Published online 2023. doi:10.1021/acsphotonics.2c01967 apa: Hähnel, D., Förstner, J., & Myroshnychenko, V. (2023). Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces. ACS Photonics. https://doi.org/10.1021/acsphotonics.2c01967 bibtex: '@article{Hähnel_Förstner_Myroshnychenko_2023, title={Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces}, DOI={10.1021/acsphotonics.2c01967}, journal={ACS Photonics}, publisher={American Chemical Society (ACS)}, author={Hähnel, David and Förstner, Jens and Myroshnychenko, Viktor}, year={2023} }' chicago: Hähnel, David, Jens Förstner, and Viktor Myroshnychenko. “Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces.” ACS Photonics, 2023. https://doi.org/10.1021/acsphotonics.2c01967. ieee: 'D. Hähnel, J. Förstner, and V. Myroshnychenko, “Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces,” ACS Photonics, 2023, doi: 10.1021/acsphotonics.2c01967.' mla: Hähnel, David, et al. “Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces.” ACS Photonics, American Chemical Society (ACS), 2023, doi:10.1021/acsphotonics.2c01967. short: D. Hähnel, J. Förstner, V. Myroshnychenko, ACS Photonics (2023). date_created: 2023-06-13T09:43:25Z date_updated: 2023-06-13T09:49:12Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' doi: 10.1021/acsphotonics.2c01967 file: - access_level: open_access content_type: application/pdf creator: fossie date_created: 2023-06-13T09:48:17Z date_updated: 2023-06-13T09:48:17Z file_id: '45597' file_name: 2023-06 Hähnel - ACS Photonics - Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces.pdf file_size: 5382111 relation: main_file file_date_updated: 2023-06-13T09:48:17Z has_accepted_license: '1' keyword: - tet_topic_meta language: - iso: eng main_file_link: - open_access: '1' oa: '1' project: - _id: '167' grant_number: '231447078' name: 'TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle eines photonischen Quantensystems (B06*)' - _id: '55' name: 'TRR 142 - B: TRR 142 - Project Area B' - _id: '53' grant_number: '231447078' name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen' - _id: '75' grant_number: '231447078' name: 'TRR 142 - C05: TRR 142 - Nichtlineare optische Oberflächen basierend auf ZnO-plasmonischen Hybrid-Nanostrukturen (C05)' - _id: '56' name: 'TRR 142 - C: TRR 142 - Project Area C' - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' publication: ACS Photonics publication_identifier: issn: - 2330-4022 - 2330-4022 publication_status: published publisher: American Chemical Society (ACS) status: public title: Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces type: journal_article user_id: '158' year: '2023' ... --- _id: '43192' abstract: - lang: eng text: The nonlinear optical response of an ensemble of semiconductor quantum dots is analyzed by wave-mixing processes, where we focus on four-wave mixing with two incident pulses. Wave-mixing experiments are often described with semiclassical models, where the light is modeled classically and the material quantum mechanically. Here, however, we use a fully quantized model, where the light is given by a quantum state of light. Quantum light involves more degrees of freedom than classical light as e.g., its photon statistics and quantum correlations, which is a promising resource for quantum devices, such as quantum memories. The light-matter interaction is treated with a Jaynes-Cummings type model and the quantum field is given by a single mode since the quantum dots are embedded in a microcavity. We present numerical simulations of the four-wave-mixing response of a homogeneous system for pulse sequences and find a significant dependence of the result on the photon statistics of the incident pulses. The model constitutes a problem with a large state space which arises from the frequency distribution of the transition energies of the inhomogeneously broadened quantum dot ensemble that is coupled with a quantum light mode. Here we approximate the dynamics by summing over individual quantum dot-microcavity systems. Photon echoes arising from the excitation with different quantum states of light are simulated and compared. article_number: 124190H author: - first_name: Hendrik full_name: Rose, Hendrik id: '55958' last_name: Rose orcid: 0000-0002-3079-5428 - first_name: S. full_name: Grisard, S. last_name: Grisard - first_name: A. V. full_name: Trifonov, A. V. last_name: Trifonov - first_name: R. full_name: Reichhardt, R. last_name: Reichhardt - first_name: Matthias full_name: Reichelt, Matthias id: '138' last_name: Reichelt - first_name: M. full_name: Bayer, M. last_name: Bayer - first_name: 'I. A. ' full_name: 'Akimov, I. A. ' last_name: Akimov - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 citation: ama: 'Rose H, Grisard S, Trifonov AV, et al. Theoretical analysis of four-wave mixing on semiconductor quantum dot ensembles with quantum light. In: Ultrafast Phenomena and Nanophotonics XXVII. Vol 12419. SPIE Proceedings. SPIE; 2023. doi:10.1117/12.2647700' apa: Rose, H., Grisard, S., Trifonov, A. V., Reichhardt, R., Reichelt, M., Bayer, M., Akimov, I. A., & Meier, T. (2023). Theoretical analysis of four-wave mixing on semiconductor quantum dot ensembles with quantum light. Ultrafast Phenomena and Nanophotonics XXVII, 12419, Article 124190H. https://doi.org/10.1117/12.2647700 bibtex: '@inproceedings{Rose_Grisard_Trifonov_Reichhardt_Reichelt_Bayer_Akimov_Meier_2023, series={SPIE Proceedings}, title={Theoretical analysis of four-wave mixing on semiconductor quantum dot ensembles with quantum light}, volume={12419}, DOI={10.1117/12.2647700}, number={124190H}, booktitle={Ultrafast Phenomena and Nanophotonics XXVII}, publisher={SPIE}, author={Rose, Hendrik and Grisard, S. and Trifonov, A. V. and Reichhardt, R. and Reichelt, Matthias and Bayer, M. and Akimov, I. A. and Meier, Torsten}, year={2023}, collection={SPIE Proceedings} }' chicago: Rose, Hendrik, S. Grisard, A. V. Trifonov, R. Reichhardt, Matthias Reichelt, M. Bayer, I. A. Akimov, and Torsten Meier. “Theoretical Analysis of Four-Wave Mixing on Semiconductor Quantum Dot Ensembles with Quantum Light.” In Ultrafast Phenomena and Nanophotonics XXVII, Vol. 12419. SPIE Proceedings. SPIE, 2023. https://doi.org/10.1117/12.2647700. ieee: 'H. Rose et al., “Theoretical analysis of four-wave mixing on semiconductor quantum dot ensembles with quantum light,” in Ultrafast Phenomena and Nanophotonics XXVII, 2023, vol. 12419, doi: 10.1117/12.2647700.' mla: Rose, Hendrik, et al. “Theoretical Analysis of Four-Wave Mixing on Semiconductor Quantum Dot Ensembles with Quantum Light.” Ultrafast Phenomena and Nanophotonics XXVII, vol. 12419, 124190H, SPIE, 2023, doi:10.1117/12.2647700. short: 'H. Rose, S. Grisard, A.V. Trifonov, R. Reichhardt, M. Reichelt, M. Bayer, I.A. Akimov, T. Meier, in: Ultrafast Phenomena and Nanophotonics XXVII, SPIE, 2023.' date_created: 2023-03-29T20:28:20Z date_updated: 2023-06-16T17:54:41Z department: - _id: '293' - _id: '35' - _id: '15' - _id: '170' - _id: '429' - _id: '230' - _id: '623' doi: 10.1117/12.2647700 intvolume: ' 12419' language: - iso: eng project: - _id: '53' grant_number: '231447078' name: 'TRR 142: TRR 142' - _id: '54' name: 'TRR 142 - A: TRR 142 - Project Area A' - _id: '59' grant_number: '231447078' name: 'TRR 142 - A02: TRR 142 - Subproject A02' - _id: '165' grant_number: '231447078' name: 'TRR 142 - A10: TRR 142 - Subproject A10' publication: Ultrafast Phenomena and Nanophotonics XXVII publication_status: published publisher: SPIE series_title: SPIE Proceedings status: public title: Theoretical analysis of four-wave mixing on semiconductor quantum dot ensembles with quantum light type: conference user_id: '55958' volume: 12419 year: '2023' ... --- _id: '45704' abstract: - lang: eng text: Since high-order harmonic generation (HHG) from atoms depends sensitively on the polarization of the driving laser field, the polarization gating (PG) technique was developed and applied successfully to generate isolated attosecond pulses from atomic gases. The situation is, however, different in solid-state systems as it has been demonstrated that due to collisions with neighboring atomic cores of the crystal lattice strong HHG can be generated even by elliptically- and circularly-polarized laser fields. Here we apply PG to solid-state systems and find that the conventional PG technique is inefficient for the generation of isolated ultrashort harmonic pulse bursts. In contrast, we demonstrate that a polarization-skewed laser pulse is able to confine the harmonic emission to a time window of less than one-tenth of the laser cycle. This method provides a novel way to control HHG and to generate isolated attosecond pulses in solids. article_number: '18862' author: - first_name: Xiaohong full_name: Song, Xiaohong last_name: Song - first_name: Shidong full_name: Yang, Shidong last_name: Yang - first_name: Guifang full_name: Wang, Guifang last_name: Wang - first_name: Jianpeng full_name: Lin, Jianpeng last_name: Lin - first_name: Liang full_name: Wang, Liang last_name: Wang - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 - first_name: Weifeng full_name: Yang, Weifeng last_name: Yang citation: ama: Song X, Yang S, Wang G, et al. Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse. Optics Express. 2023;31(12). doi:10.1364/oe.491418 apa: Song, X., Yang, S., Wang, G., Lin, J., Wang, L., Meier, T., & Yang, W. (2023). Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse. Optics Express, 31(12), Article 18862. https://doi.org/10.1364/oe.491418 bibtex: '@article{Song_Yang_Wang_Lin_Wang_Meier_Yang_2023, title={Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse}, volume={31}, DOI={10.1364/oe.491418}, number={1218862}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Song, Xiaohong and Yang, Shidong and Wang, Guifang and Lin, Jianpeng and Wang, Liang and Meier, Torsten and Yang, Weifeng}, year={2023} }' chicago: Song, Xiaohong, Shidong Yang, Guifang Wang, Jianpeng Lin, Liang Wang, Torsten Meier, and Weifeng Yang. “Control of the Electron Dynamics in Solid-State High Harmonic Generation on Ultrafast Time Scales by a Polarization-Skewed Laser Pulse.” Optics Express 31, no. 12 (2023). https://doi.org/10.1364/oe.491418. ieee: 'X. Song et al., “Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse,” Optics Express, vol. 31, no. 12, Art. no. 18862, 2023, doi: 10.1364/oe.491418.' mla: Song, Xiaohong, et al. “Control of the Electron Dynamics in Solid-State High Harmonic Generation on Ultrafast Time Scales by a Polarization-Skewed Laser Pulse.” Optics Express, vol. 31, no. 12, 18862, Optica Publishing Group, 2023, doi:10.1364/oe.491418. short: X. Song, S. Yang, G. Wang, J. Lin, L. Wang, T. Meier, W. Yang, Optics Express 31 (2023). date_created: 2023-06-21T09:55:18Z date_updated: 2023-06-21T09:56:31Z department: - _id: '15' - _id: '170' - _id: '293' - _id: '35' - _id: '230' - _id: '429' doi: 10.1364/oe.491418 intvolume: ' 31' issue: '12' keyword: - Atomic and Molecular Physics - and Optics language: - iso: eng project: - _id: '53' grant_number: '231447078' name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen' - _id: '54' name: 'TRR 142 - A: TRR 142 - Project Area A' - _id: '165' grant_number: '231447078' name: 'TRR 142 - A10: TRR 142 - Nichtlinearitäten von atomar dünnen Übergangsmetall-Dichalkogeniden in starken Feldern (A10*)' publication: Optics Express publication_identifier: issn: - 1094-4087 publication_status: published publisher: Optica Publishing Group status: public title: Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse type: journal_article user_id: '16199' volume: 31 year: '2023' ... --- _id: '45703' article_number: L022040 author: - first_name: Ruixin full_name: Zuo, Ruixin last_name: Zuo - first_name: Xiaohong full_name: Song, Xiaohong last_name: Song - first_name: Shuai full_name: Ben, Shuai last_name: Ben - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 - first_name: Weifeng full_name: Yang, Weifeng last_name: Yang citation: ama: Zuo R, Song X, Ben S, Meier T, Yang W. Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation. Physical Review Research. 2023;5(2). doi:10.1103/physrevresearch.5.l022040 apa: Zuo, R., Song, X., Ben, S., Meier, T., & Yang, W. (2023). Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation. Physical Review Research, 5(2), Article L022040. https://doi.org/10.1103/physrevresearch.5.l022040 bibtex: '@article{Zuo_Song_Ben_Meier_Yang_2023, title={Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation}, volume={5}, DOI={10.1103/physrevresearch.5.l022040}, number={2L022040}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Zuo, Ruixin and Song, Xiaohong and Ben, Shuai and Meier, Torsten and Yang, Weifeng}, year={2023} }' chicago: Zuo, Ruixin, Xiaohong Song, Shuai Ben, Torsten Meier, and Weifeng Yang. “Revealing the Nonadiabatic Tunneling Dynamics in Solid-State High Harmonic Generation.” Physical Review Research 5, no. 2 (2023). https://doi.org/10.1103/physrevresearch.5.l022040. ieee: 'R. Zuo, X. Song, S. Ben, T. Meier, and W. Yang, “Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation,” Physical Review Research, vol. 5, no. 2, Art. no. L022040, 2023, doi: 10.1103/physrevresearch.5.l022040.' mla: Zuo, Ruixin, et al. “Revealing the Nonadiabatic Tunneling Dynamics in Solid-State High Harmonic Generation.” Physical Review Research, vol. 5, no. 2, L022040, American Physical Society (APS), 2023, doi:10.1103/physrevresearch.5.l022040. short: R. Zuo, X. Song, S. Ben, T. Meier, W. Yang, Physical Review Research 5 (2023). date_created: 2023-06-21T09:52:34Z date_updated: 2023-06-21T09:54:16Z department: - _id: '15' - _id: '170' - _id: '293' - _id: '230' - _id: '429' - _id: '35' doi: 10.1103/physrevresearch.5.l022040 intvolume: ' 5' issue: '2' keyword: - General Physics and Astronomy language: - iso: eng project: - _id: '53' grant_number: '231447078' name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen' - _id: '54' name: 'TRR 142 - A: TRR 142 - Project Area A' - _id: '165' grant_number: '231447078' name: 'TRR 142 - A10: TRR 142 - Nichtlinearitäten von atomar dünnen Übergangsmetall-Dichalkogeniden in starken Feldern (A10*)' publication: Physical Review Research publication_identifier: issn: - 2643-1564 publication_status: published publisher: American Physical Society (APS) status: public title: Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation type: journal_article user_id: '16199' volume: 5 year: '2023' ... --- _id: '49117' article_number: '043158' author: - first_name: D. full_name: Scharwald, D. last_name: Scharwald - first_name: T. full_name: Meier, T. last_name: Meier - first_name: P. R. full_name: Sharapova, P. R. last_name: Sharapova citation: ama: Scharwald D, Meier T, Sharapova PR. Phase sensitivity of spatially broadband high-gain <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>SU</mml:mi><mml:mo>(</mml:mo><mml:mn>1</mml:mn><mml:mo>,</mml:mo><mml:mn>1</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math> interferometers. Physical Review Research. 2023;5(4). doi:10.1103/physrevresearch.5.043158 apa: Scharwald, D., Meier, T., & Sharapova, P. R. (2023). Phase sensitivity of spatially broadband high-gain <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>SU</mml:mi><mml:mo>(</mml:mo><mml:mn>1</mml:mn><mml:mo>,</mml:mo><mml:mn>1</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math> interferometers. Physical Review Research, 5(4), Article 043158. https://doi.org/10.1103/physrevresearch.5.043158 bibtex: '@article{Scharwald_Meier_Sharapova_2023, title={Phase sensitivity of spatially broadband high-gain <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>SU</mml:mi><mml:mo>(</mml:mo><mml:mn>1</mml:mn><mml:mo>,</mml:mo><mml:mn>1</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math> interferometers}, volume={5}, DOI={10.1103/physrevresearch.5.043158}, number={4043158}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Scharwald, D. and Meier, T. and Sharapova, P. R.}, year={2023} }' chicago: Scharwald, D., T. Meier, and P. R. Sharapova. “Phase Sensitivity of Spatially Broadband High-Gain <mml:Math Xmlns:Mml="http://Www.W3.Org/1998/Math/MathML"><mml:Mrow><mml:Mi>SU</Mml:Mi><mml:Mo>(</Mml:Mo><mml:Mn>1</Mml:Mn><mml:Mo>,</Mml:Mo><mml:Mn>1</Mml:Mn><mml:Mo>)</Mml:Mo></Mml:Mrow></Mml:Math> Interferometers.” Physical Review Research 5, no. 4 (2023). https://doi.org/10.1103/physrevresearch.5.043158. ieee: 'D. Scharwald, T. Meier, and P. R. Sharapova, “Phase sensitivity of spatially broadband high-gain <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>SU</mml:mi><mml:mo>(</mml:mo><mml:mn>1</mml:mn><mml:mo>,</mml:mo><mml:mn>1</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math> interferometers,” Physical Review Research, vol. 5, no. 4, Art. no. 043158, 2023, doi: 10.1103/physrevresearch.5.043158.' mla: Scharwald, D., et al. “Phase Sensitivity of Spatially Broadband High-Gain <mml:Math Xmlns:Mml="http://Www.W3.Org/1998/Math/MathML"><mml:Mrow><mml:Mi>SU</Mml:Mi><mml:Mo>(</Mml:Mo><mml:Mn>1</Mml:Mn><mml:Mo>,</Mml:Mo><mml:Mn>1</Mml:Mn><mml:Mo>)</Mml:Mo></Mml:Mrow></Mml:Math> Interferometers.” Physical Review Research, vol. 5, no. 4, 043158, American Physical Society (APS), 2023, doi:10.1103/physrevresearch.5.043158. short: D. Scharwald, T. Meier, P.R. Sharapova, Physical Review Research 5 (2023). date_created: 2023-11-22T09:18:02Z date_updated: 2023-11-22T09:19:02Z department: - _id: '15' - _id: '170' - _id: '230' - _id: '569' - _id: '429' doi: 10.1103/physrevresearch.5.043158 intvolume: ' 5' issue: '4' keyword: - General Physics and Astronomy language: - iso: eng publication: Physical Review Research publication_identifier: issn: - 2643-1564 publication_status: published publisher: American Physical Society (APS) status: public title: Phase sensitivity of spatially broadband high-gain SU(1,1) interferometers type: journal_article user_id: '60286' volume: 5 year: '2023' ... --- _id: '50012' abstract: - lang: eng text: Silicon photonics, in conjunction with complementary metal-oxide-semiconductor (CMOS) fabrication, has greatly enhanced the development of integrated optical phased arrays. This facilitates a dynamic control of light in a compact form factor that enables the synthesis of arbitrary complex wavefronts in the infrared spectrum. We numerically demonstrate a large-scale two-dimensional silicon-based optical phased array (OPA) composed of nanoantennas with circular gratings that are balanced in power and aligned in phase, required for producing elegant radiation patterns in the far-field. For a wavelength of 1.55 μm, we optimize two antennas for the OPA exhibiting an upward radiation efficiency as high as 90%, with almost 6.8% of optical power concentrated in the field of view. Additionally, we believe that the proposed OPAs can be easily fabricated and would have the ability to generate complex holographic images, rendering them an attractive candidate for a wide range of applications like LiDAR sensors, optical trapping, optogenetic stimulation, and augmented-reality displays. author: - first_name: Henna full_name: Farheen, Henna last_name: Farheen - first_name: Andreas full_name: Strauch, Andreas last_name: Strauch - first_name: J. Christoph full_name: Scheytt, J. Christoph id: '37144' last_name: Scheytt orcid: '0000-0002-5950-6618 ' - first_name: Viktor full_name: Myroshnychenko, Viktor id: '46371' last_name: Myroshnychenko - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: Farheen H, Strauch A, Scheytt JC, Myroshnychenko V, Förstner J. Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays. Photonics and Nanostructures - Fundamentals and Applications. 2023;58:101207. doi:10.1016/j.photonics.2023.101207 apa: Farheen, H., Strauch, A., Scheytt, J. C., Myroshnychenko, V., & Förstner, J. (2023). Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays. Photonics and Nanostructures - Fundamentals and Applications, 58, 101207. https://doi.org/10.1016/j.photonics.2023.101207 bibtex: '@article{Farheen_Strauch_Scheytt_Myroshnychenko_Förstner_2023, title={Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays}, volume={58}, DOI={10.1016/j.photonics.2023.101207}, journal={Photonics and Nanostructures - Fundamentals and Applications}, publisher={Elsevier BV}, author={Farheen, Henna and Strauch, Andreas and Scheytt, J. Christoph and Myroshnychenko, Viktor and Förstner, Jens}, year={2023}, pages={101207} }' chicago: 'Farheen, Henna, Andreas Strauch, J. Christoph Scheytt, Viktor Myroshnychenko, and Jens Förstner. “Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays.” Photonics and Nanostructures - Fundamentals and Applications 58 (2023): 101207. https://doi.org/10.1016/j.photonics.2023.101207.' ieee: 'H. Farheen, A. Strauch, J. C. Scheytt, V. Myroshnychenko, and J. Förstner, “Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays,” Photonics and Nanostructures - Fundamentals and Applications, vol. 58, p. 101207, 2023, doi: 10.1016/j.photonics.2023.101207.' mla: Farheen, Henna, et al. “Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays.” Photonics and Nanostructures - Fundamentals and Applications, vol. 58, Elsevier BV, 2023, p. 101207, doi:10.1016/j.photonics.2023.101207. short: H. Farheen, A. Strauch, J.C. Scheytt, V. Myroshnychenko, J. Förstner, Photonics and Nanostructures - Fundamentals and Applications 58 (2023) 101207. date_created: 2023-12-21T09:30:03Z date_updated: 2023-12-21T09:48:39Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' - _id: '58' doi: 10.1016/j.photonics.2023.101207 file: - access_level: open_access content_type: application/pdf creator: fossie date_created: 2023-12-21T09:34:17Z date_updated: 2023-12-21T09:34:17Z file_id: '50013' file_name: 2ß23-12 Farheen - PNFA - Optimized, highly efficient silicon antennas for optical phased arrays.pdf file_size: 3339442 relation: main_file file_date_updated: 2023-12-21T09:34:17Z has_accepted_license: '1' intvolume: ' 58' keyword: - tet_topic_opticalantenna language: - iso: eng oa: '1' page: '101207' project: - _id: '266' grant_number: PROFILNRW-2020-067 name: 'PhoQC: PhoQC: Photonisches Quantencomputing' - _id: '167' grant_number: '231447078' name: 'TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle eines photonischen Quantensystems (B06*)' - _id: '55' name: 'TRR 142 - B: TRR 142 - Project Area B' - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' publication: Photonics and Nanostructures - Fundamentals and Applications publication_identifier: issn: - 1569-4410 publication_status: published publisher: Elsevier BV related_material: link: - relation: research_data url: https://doi.org/10.5281/zenodo.10044122 status: public title: Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays type: journal_article user_id: '158' volume: 58 year: '2023' ... --- _id: '48599' abstract: - lang: eng text: AbstractThe 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. author: - first_name: David full_name: Bauch, David last_name: Bauch - first_name: Dustin full_name: Siebert, Dustin last_name: Siebert - first_name: Klaus full_name: Jöns, Klaus id: '85353' last_name: Jöns - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Stefan full_name: Schumacher, Stefan id: '27271' last_name: Schumacher orcid: 0000-0003-4042-4951 citation: ama: Bauch D, Siebert D, Jöns K, Förstner J, Schumacher S. On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs. Advanced Quantum Technologies. Published online 2023. doi:10.1002/qute.202300142 apa: Bauch, D., Siebert, D., Jöns, K., Förstner, J., & Schumacher, S. (2023). On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs. Advanced Quantum Technologies. https://doi.org/10.1002/qute.202300142 bibtex: '@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs}, DOI={10.1002/qute.202300142}, journal={Advanced Quantum Technologies}, publisher={Wiley}, author={Bauch, David and Siebert, Dustin and Jöns, Klaus and Förstner, Jens and Schumacher, Stefan}, year={2023} }' chicago: Bauch, David, Dustin Siebert, Klaus Jöns, Jens Förstner, and Stefan Schumacher. “On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.” Advanced Quantum Technologies, 2023. https://doi.org/10.1002/qute.202300142. ieee: 'D. Bauch, D. Siebert, K. Jöns, J. Förstner, and S. Schumacher, “On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs,” Advanced Quantum Technologies, 2023, doi: 10.1002/qute.202300142.' mla: Bauch, David, et al. “On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.” Advanced Quantum Technologies, Wiley, 2023, doi:10.1002/qute.202300142. short: D. Bauch, D. Siebert, K. Jöns, J. Förstner, S. Schumacher, Advanced Quantum Technologies (2023). date_created: 2023-11-03T10:07:38Z date_updated: 2023-12-21T10:41:17Z department: - _id: '61' - _id: '230' - _id: '429' - _id: '623' doi: 10.1002/qute.202300142 keyword: - tet_topic_qd language: - iso: eng main_file_link: - open_access: '1' url: https://onlinelibrary.wiley.com/doi/10.1002/qute.202300142 oa: '1' project: - _id: '173' grant_number: '231447078' name: 'TRR 142 - C09: TRR 142 - Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch bei Telekom Wellenlängen (C09*)' - _id: '167' grant_number: '231447078' name: 'TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle eines photonischen Quantensystems (B06*)' - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' publication: Advanced Quantum Technologies publication_identifier: issn: - 2511-9044 - 2511-9044 publication_status: published publisher: Wiley related_material: record: - id: '43246' relation: earlier_version status: public status: public title: On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs type: journal_article user_id: '158' year: '2023' ... --- _id: '43246' abstract: - lang: eng text: 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 we focus on the generation of pairs of photons with high degrees of polarization entanglement and simultaneously high indistinguishibility. We achieve this goal by selectively reducing the biexciton lifetime with an optical resonator. We demonstrate 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 two-fold degenerate optical modes. Our 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. We report non-trivial dependencies on system parameters and use the predictive power of our combined theoretical approach to determine the optimal range of Purcell enhancement that maximizes indistinguishability and entanglement to near unity values in the telecom C-band at $1550\,\mathrm{nm}$. author: - first_name: David full_name: Bauch, David last_name: Bauch - first_name: Dustin full_name: Siebert, Dustin last_name: Siebert - first_name: Klaus full_name: Jöns, Klaus id: '85353' last_name: Jöns - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Stefan full_name: Schumacher, Stefan id: '27271' last_name: Schumacher orcid: 0000-0003-4042-4951 citation: ama: Bauch D, Siebert D, Jöns K, Förstner J, Schumacher S. On-demand indistinguishable and entangled photons at telecom frequencies using tailored cavity designs. Published online 2023. apa: Bauch, D., Siebert, D., Jöns, K., Förstner, J., & Schumacher, S. (2023). On-demand indistinguishable and entangled photons at telecom frequencies using tailored cavity designs. bibtex: '@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On-demand indistinguishable and entangled photons at telecom frequencies using tailored cavity designs}, author={Bauch, David and Siebert, Dustin and Jöns, Klaus and Förstner, Jens and Schumacher, Stefan}, year={2023} }' chicago: Bauch, David, Dustin Siebert, Klaus Jöns, Jens Förstner, and Stefan Schumacher. “On-Demand Indistinguishable and Entangled Photons at Telecom Frequencies Using Tailored Cavity Designs,” 2023. ieee: D. Bauch, D. Siebert, K. Jöns, J. Förstner, and S. Schumacher, “On-demand indistinguishable and entangled photons at telecom frequencies using tailored cavity designs.” 2023. mla: Bauch, David, et al. On-Demand Indistinguishable and Entangled Photons at Telecom Frequencies Using Tailored Cavity Designs. 2023. short: D. Bauch, D. Siebert, K. Jöns, J. Förstner, S. Schumacher, (2023). date_created: 2023-03-31T13:22:05Z date_updated: 2023-12-21T10:41:17Z department: - _id: '61' - _id: '230' - _id: '429' - _id: '623' - _id: '15' - _id: '35' - _id: '170' - _id: '297' keyword: - tet_topic_phc - tet_topic_qd language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/pdf/2303.13871.pdf oa: '1' project: - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' - _id: '173' grant_number: '231447078' name: 'TRR 142 - C09: TRR 142 - Subproject C09' - _id: '167' grant_number: '231447078' name: 'TRR 142 - B06: TRR 142 - Subproject B06' - _id: '53' grant_number: '231447078' name: 'TRR 142: TRR 142' - _id: '55' name: 'TRR 142 - B: TRR 142 - Project Area B' - _id: '56' name: 'TRR 142 - C: TRR 142 - Project Area C' related_material: record: - id: '48599' relation: later_version status: public status: public title: On-demand indistinguishable and entangled photons at telecom frequencies using tailored cavity designs type: preprint user_id: '16199' year: '2023' ... --- _id: '28413' abstract: - lang: eng 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. author: - first_name: Henna full_name: Farheen, Henna last_name: Farheen - first_name: Till full_name: Leuteritz, Till last_name: Leuteritz - first_name: Stefan full_name: Linden, Stefan last_name: Linden - first_name: Viktor full_name: Myroshnychenko, Viktor id: '46371' last_name: Myroshnychenko - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: Farheen H, Leuteritz T, Linden S, Myroshnychenko V, Förstner J. Optimization of optical waveguide antennas for directive emission of light. Journal of the Optical Society of America B. 2022;39(1):83. doi:10.1364/josab.438514 apa: Farheen, H., Leuteritz, T., Linden, S., Myroshnychenko, V., & Förstner, J. (2022). Optimization of optical waveguide antennas for directive emission of light. Journal of the Optical Society of America B, 39(1), 83. https://doi.org/10.1364/josab.438514 bibtex: '@article{Farheen_Leuteritz_Linden_Myroshnychenko_Förstner_2022, title={Optimization of optical waveguide antennas for directive emission of light}, volume={39}, DOI={10.1364/josab.438514}, 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} }' chicago: 'Farheen, Henna, Till Leuteritz, Stefan Linden, Viktor Myroshnychenko, and Jens Förstner. “Optimization of Optical Waveguide Antennas for Directive Emission of Light.” Journal of the Optical Society of America B 39, no. 1 (2022): 83. https://doi.org/10.1364/josab.438514.' ieee: 'H. Farheen, T. Leuteritz, S. Linden, V. Myroshnychenko, and J. Förstner, “Optimization of optical waveguide antennas for directive emission of light,” Journal of the Optical Society of America B, vol. 39, no. 1, p. 83, 2022, doi: 10.1364/josab.438514.' mla: Farheen, Henna, et al. “Optimization of Optical Waveguide Antennas for Directive Emission of Light.” Journal of the Optical Society of America B, vol. 39, no. 1, 2022, p. 83, doi:10.1364/josab.438514. short: H. Farheen, T. Leuteritz, S. Linden, V. Myroshnychenko, J. Förstner, Journal of the Optical Society of America B 39 (2022) 83. date_created: 2021-12-08T07:14:39Z date_updated: 2022-01-06T06:58:04Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' doi: 10.1364/josab.438514 file: - access_level: local content_type: application/pdf creator: fossie date_created: 2021-12-08T08:26:57Z date_updated: 2021-12-08T08:26:57Z embargo: 2022-12-08 embargo_to: open_access file_id: '28417' file_name: 2021-12 Farheen - JOSA B - Optimization of optical nanoantennas.pdf file_size: 14029741 relation: main_file - access_level: open_access content_type: application/pdf creator: fossie date_created: 2021-12-08T08:29:49Z date_updated: 2021-12-08T08:29:49Z file_id: '28418' file_name: 2021-12 Farheen - JOSA B - Optimization of optical nanoantennas SUPPLEMENTARY MATERIAL.pdf file_size: 655495 relation: supplementary_material file_date_updated: 2021-12-08T08:29:49Z has_accepted_license: '1' intvolume: ' 39' issue: '1' keyword: - tet_topic_opticalantenna language: - iso: eng oa: '1' page: '83' project: - _id: '53' name: TRR 142 - _id: '56' name: TRR 142 - Project Area C - _id: '75' name: TRR 142 - Subproject C5 - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Journal of the Optical Society of America B publication_identifier: issn: - 0740-3224 - 1520-8540 publication_status: published status: public title: Optimization of optical waveguide antennas for directive emission of light type: journal_article user_id: '158' volume: 39 year: '2022' ... --- _id: '29075' abstract: - lang: eng text: We study a double-scattering coherent mechanism of negative polarization (NP) near opposition that is observed for powder-like surfaces. The problem is solved numerically for absorbing structures with irregular constituents, cubes, spheres, and ellipsoids larger than the wavelength of incident light. Our simulations show that double scattering between two random irregular particles shows weak NP. Adding one more particle significantly increases the relative contribution of double scattering which enhances NP. Simulations with regular shapes and controlled geometric parameters show that the interference mechanism is sensitive to the geometry of the scattering system and can also result in no polarization or even strong enhancement of positive polarization at backscattering. author: - first_name: Samer full_name: Alhaddad, Samer id: '42456' last_name: Alhaddad - first_name: Yevgen full_name: Grynko, Yevgen id: '26059' last_name: Grynko - first_name: Henna full_name: Farheen, Henna last_name: Farheen - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: Alhaddad S, Grynko Y, Farheen H, Förstner J. Numerical analysis of the coherent mechanism producing negative polarization at backscattering from systems of absorbing particles. Optics Letters. 2022;47(1):58. doi:10.1364/ol.444953 apa: Alhaddad, S., Grynko, Y., Farheen, H., & Förstner, J. (2022). Numerical analysis of the coherent mechanism producing negative polarization at backscattering from systems of absorbing particles. Optics Letters, 47(1), 58. https://doi.org/10.1364/ol.444953 bibtex: '@article{Alhaddad_Grynko_Farheen_Förstner_2022, title={Numerical analysis of the coherent mechanism producing negative polarization at backscattering from systems of absorbing particles}, volume={47}, DOI={10.1364/ol.444953}, number={1}, journal={Optics Letters}, author={Alhaddad, Samer and Grynko, Yevgen and Farheen, Henna and Förstner, Jens}, year={2022}, pages={58} }' chicago: 'Alhaddad, Samer, Yevgen Grynko, Henna Farheen, and Jens Förstner. “Numerical Analysis of the Coherent Mechanism Producing Negative Polarization at Backscattering from Systems of Absorbing Particles.” Optics Letters 47, no. 1 (2022): 58. https://doi.org/10.1364/ol.444953.' ieee: 'S. Alhaddad, Y. Grynko, H. Farheen, and J. Förstner, “Numerical analysis of the coherent mechanism producing negative polarization at backscattering from systems of absorbing particles,” Optics Letters, vol. 47, no. 1, p. 58, 2022, doi: 10.1364/ol.444953.' mla: Alhaddad, Samer, et al. “Numerical Analysis of the Coherent Mechanism Producing Negative Polarization at Backscattering from Systems of Absorbing Particles.” Optics Letters, vol. 47, no. 1, 2022, p. 58, doi:10.1364/ol.444953. short: S. Alhaddad, Y. Grynko, H. Farheen, J. Förstner, Optics Letters 47 (2022) 58. date_created: 2021-12-21T13:49:29Z date_updated: 2022-01-06T06:58:46Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' doi: 10.1364/ol.444953 file: - access_level: local content_type: application/pdf creator: fossie date_created: 2021-12-21T13:53:47Z date_updated: 2021-12-21T13:53:47Z embargo: 2022-12-21 embargo_to: open_access file_id: '29076' file_name: 2022-01 Alhaddad - Optics Letter - Double Scattering.pdf file_size: 3197213 relation: main_file file_date_updated: 2021-12-21T13:53:47Z has_accepted_license: '1' intvolume: ' 47' issue: '1' keyword: - tet_topic_scattering language: - iso: eng page: '58' project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Optics Letters publication_identifier: issn: - 0146-9592 - 1539-4794 publication_status: published status: public title: Numerical analysis of the coherent mechanism producing negative polarization at backscattering from systems of absorbing particles type: journal_article user_id: '158' volume: 47 year: '2022' ...