--- _id: '51106' author: - first_name: Tobias full_name: Schneider, Tobias last_name: Schneider - first_name: Wenlong full_name: Gao, Wenlong last_name: Gao - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Stefan full_name: Schumacher, Stefan id: '27271' last_name: Schumacher orcid: 0000-0003-4042-4951 - first_name: Xuekai full_name: Ma, Xuekai id: '59416' last_name: Ma citation: ama: Schneider T, Gao W, Zentgraf T, Schumacher S, Ma X. Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates. Nanophotonics. Published online 2024. doi:10.1515/nanoph-2023-0556 apa: Schneider, T., Gao, W., Zentgraf, T., Schumacher, S., & Ma, X. (2024). Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates. Nanophotonics. https://doi.org/10.1515/nanoph-2023-0556 bibtex: '@article{Schneider_Gao_Zentgraf_Schumacher_Ma_2024, title={Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates}, DOI={10.1515/nanoph-2023-0556}, journal={Nanophotonics}, author={Schneider, Tobias and Gao, Wenlong and Zentgraf, Thomas and Schumacher, Stefan and Ma, Xuekai}, year={2024} }' chicago: Schneider, Tobias, Wenlong Gao, Thomas Zentgraf, Stefan Schumacher, and Xuekai Ma. “Topological Edge and Corner States in Coupled Wave Lattices in Nonlinear Polariton Condensates.” Nanophotonics, 2024. https://doi.org/10.1515/nanoph-2023-0556. ieee: 'T. Schneider, W. Gao, T. Zentgraf, S. Schumacher, and X. Ma, “Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates,” Nanophotonics, 2024, doi: 10.1515/nanoph-2023-0556.' mla: Schneider, Tobias, et al. “Topological Edge and Corner States in Coupled Wave Lattices in Nonlinear Polariton Condensates.” Nanophotonics, 2024, doi:10.1515/nanoph-2023-0556. short: T. Schneider, W. Gao, T. Zentgraf, S. Schumacher, X. Ma, Nanophotonics (2024). date_created: 2024-01-31T13:52:24Z date_updated: 2024-02-05T08:33:16Z department: - _id: '15' doi: 10.1515/nanoph-2023-0556 language: - iso: eng publication: Nanophotonics status: public title: Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates type: journal_article user_id: '59416' year: '2024' ... --- _id: '51519' author: - first_name: Tie Jun full_name: Cui, Tie Jun last_name: Cui - first_name: Shuang full_name: Zhang, Shuang last_name: Zhang - first_name: Andrea full_name: Alu, Andrea last_name: Alu - first_name: Martin full_name: Wegener, Martin last_name: Wegener - first_name: John full_name: Pendry, John last_name: Pendry - first_name: Jie full_name: Luo, Jie last_name: Luo - first_name: Yun full_name: Lai, Yun last_name: Lai - first_name: Zuojia full_name: Wang, Zuojia last_name: Wang - first_name: Xiao full_name: Lin, Xiao last_name: Lin - first_name: Hongsheng full_name: Chen, Hongsheng last_name: Chen - first_name: Ping full_name: Chen, Ping last_name: Chen - first_name: Rui-Xin full_name: Wu, Rui-Xin last_name: Wu - first_name: Yuhang full_name: Yin, Yuhang last_name: Yin - first_name: Pengfei full_name: Zhao, Pengfei last_name: Zhao - first_name: Huanyang full_name: Chen, Huanyang last_name: Chen - first_name: Yue full_name: Li, Yue last_name: Li - first_name: Ziheng full_name: Zhou, Ziheng last_name: Zhou - first_name: Nader full_name: Engheta, Nader last_name: Engheta - first_name: V. S. full_name: Asadchy, V. S. last_name: Asadchy - first_name: Constantin full_name: Simovski, Constantin last_name: Simovski - first_name: Sergei A full_name: Tretyakov, Sergei A last_name: Tretyakov - first_name: Biao full_name: Yang, Biao last_name: Yang - first_name: Sawyer D. full_name: Campbell, Sawyer D. last_name: Campbell - first_name: Yang full_name: Hao, Yang last_name: Hao - first_name: Douglas H full_name: Werner, Douglas H last_name: Werner - first_name: Shulin full_name: Sun, Shulin last_name: Sun - first_name: Lei full_name: Zhou, Lei last_name: Zhou - first_name: Su full_name: Xu, Su last_name: Xu - first_name: Hong-Bo full_name: Sun, Hong-Bo last_name: Sun - first_name: Zhou full_name: Zhou, Zhou last_name: Zhou - first_name: Zile full_name: Li, Zile last_name: Li - first_name: Guoxing full_name: Zheng, Guoxing last_name: Zheng - first_name: Xianzhong full_name: Chen, Xianzhong last_name: Chen - first_name: Tao full_name: Li, Tao last_name: Li - first_name: Shi-Ning full_name: Zhu, Shi-Ning last_name: Zhu - first_name: Junxiao full_name: Zhou, Junxiao last_name: Zhou - first_name: Junxiang full_name: Zhao, Junxiang last_name: Zhao - first_name: Zhaowei full_name: Liu, Zhaowei last_name: Liu - first_name: Yuchao full_name: Zhang, Yuchao last_name: Zhang - first_name: Qiming full_name: Zhang, Qiming last_name: Zhang - first_name: Min full_name: Gu, Min last_name: Gu - first_name: Shumin full_name: Xiao, Shumin last_name: Xiao - first_name: Yongmin full_name: Liu, Yongmin last_name: Liu - first_name: Xiaoyu full_name: Zhang, Xiaoyu last_name: Zhang - first_name: Yutao full_name: Tang, Yutao last_name: Tang - first_name: Guixin full_name: Li, Guixin last_name: Li - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Kirill full_name: Koshelev, Kirill last_name: Koshelev - first_name: Yuri S. full_name: Kivshar, Yuri S. last_name: Kivshar - first_name: Xin full_name: Li, Xin last_name: Li - first_name: Trevon full_name: Badloe, Trevon last_name: Badloe - first_name: Lingling full_name: Huang, Lingling last_name: Huang - first_name: Junsuk full_name: Rho, Junsuk last_name: Rho - first_name: Shuming full_name: Wang, Shuming last_name: Wang - first_name: Din Ping full_name: Tsai, Din Ping last_name: Tsai - first_name: A. Yu. full_name: Bykov, A. Yu. last_name: Bykov - first_name: Alexey V full_name: Krasavin, Alexey V last_name: Krasavin - first_name: Anatoly V full_name: Zayats, Anatoly V last_name: Zayats - first_name: Cormac full_name: McDonnell, Cormac last_name: McDonnell - first_name: Tal full_name: Ellenbogen, Tal last_name: Ellenbogen - first_name: Xiangang full_name: Luo, Xiangang last_name: Luo - first_name: Mingbo full_name: Pu, Mingbo last_name: Pu - first_name: Francisco J full_name: Garcia-Vidal, Francisco J last_name: Garcia-Vidal - first_name: Liangliang full_name: Liu, Liangliang last_name: Liu - first_name: Zhuo full_name: Li, Zhuo last_name: Li - first_name: Wenxuan full_name: Tang, Wenxuan last_name: Tang - first_name: Hui Feng full_name: Ma, Hui Feng last_name: Ma - first_name: Jingjing full_name: Zhang, Jingjing last_name: Zhang - first_name: Yu full_name: Luo, Yu last_name: Luo - first_name: Xuanru full_name: Zhang, Xuanru last_name: Zhang - first_name: Hao Chi full_name: Zhang, Hao Chi last_name: Zhang - first_name: Pei Hang full_name: He, Pei Hang last_name: He - first_name: Le Peng full_name: Zhang, Le Peng last_name: Zhang - first_name: Xiang full_name: Wan, Xiang last_name: Wan - first_name: Haotian full_name: Wu, Haotian last_name: Wu - first_name: Shuo full_name: Liu, Shuo last_name: Liu - first_name: Wei Xiang full_name: Jiang, Wei Xiang last_name: Jiang - first_name: Xin Ge full_name: Zhang, Xin Ge last_name: Zhang - first_name: Chengwei full_name: Qiu, Chengwei last_name: Qiu - first_name: Qian full_name: Ma, Qian last_name: Ma - first_name: Che full_name: Liu, Che last_name: Liu - first_name: Long full_name: Li, Long last_name: Li - first_name: Jiaqi full_name: Han, Jiaqi last_name: Han - first_name: Lianlin full_name: Li, Lianlin last_name: Li - first_name: Michele full_name: Cotrufo, Michele last_name: Cotrufo - first_name: Christophe full_name: Caloz, Christophe last_name: Caloz - first_name: Z.-L. full_name: Deck-Léger, Z.-L. last_name: Deck-Léger - first_name: A. full_name: Bahrami, A. last_name: Bahrami - first_name: O. full_name: Céspedes, O. last_name: Céspedes - first_name: Emanuele full_name: Galiffi, Emanuele last_name: Galiffi - first_name: P. A. full_name: Huidobro, P. A. last_name: Huidobro - first_name: Qiang full_name: Cheng, Qiang last_name: Cheng - first_name: Jun Yan full_name: Dai, Jun Yan last_name: Dai - first_name: Jun Cheng full_name: Ke, Jun Cheng last_name: Ke - first_name: Lei full_name: Zhang, Lei last_name: Zhang - first_name: Vincenzo full_name: Galdi, Vincenzo last_name: Galdi - first_name: Marco full_name: Di Renzo, Marco last_name: Di Renzo citation: ama: 'Cui TJ, Zhang S, Alu A, et al. Roadmap on electromagnetic metamaterials and metasurfaces. Journal of Physics: Photonics. Published online 2024. doi:10.1088/2515-7647/ad1a3b' apa: 'Cui, T. J., Zhang, S., Alu, A., Wegener, M., Pendry, J., Luo, J., Lai, Y., Wang, Z., Lin, X., Chen, H., Chen, P., Wu, R.-X., Yin, Y., Zhao, P., Chen, H., Li, Y., Zhou, Z., Engheta, N., Asadchy, V. S., … Di Renzo, M. (2024). Roadmap on electromagnetic metamaterials and metasurfaces. Journal of Physics: Photonics. https://doi.org/10.1088/2515-7647/ad1a3b' bibtex: '@article{Cui_Zhang_Alu_Wegener_Pendry_Luo_Lai_Wang_Lin_Chen_et al._2024, title={Roadmap on electromagnetic metamaterials and metasurfaces}, DOI={10.1088/2515-7647/ad1a3b}, journal={Journal of Physics: Photonics}, publisher={IOP Publishing}, author={Cui, Tie Jun and Zhang, Shuang and Alu, Andrea and Wegener, Martin and Pendry, John and Luo, Jie and Lai, Yun and Wang, Zuojia and Lin, Xiao and Chen, Hongsheng and et al.}, year={2024} }' chicago: 'Cui, Tie Jun, Shuang Zhang, Andrea Alu, Martin Wegener, John Pendry, Jie Luo, Yun Lai, et al. “Roadmap on Electromagnetic Metamaterials and Metasurfaces.” Journal of Physics: Photonics, 2024. https://doi.org/10.1088/2515-7647/ad1a3b.' ieee: 'T. J. Cui et al., “Roadmap on electromagnetic metamaterials and metasurfaces,” Journal of Physics: Photonics, 2024, doi: 10.1088/2515-7647/ad1a3b.' mla: 'Cui, Tie Jun, et al. “Roadmap on Electromagnetic Metamaterials and Metasurfaces.” Journal of Physics: Photonics, IOP Publishing, 2024, doi:10.1088/2515-7647/ad1a3b.' short: 'T.J. Cui, S. Zhang, A. Alu, M. Wegener, J. Pendry, J. Luo, Y. Lai, Z. Wang, X. Lin, H. Chen, P. Chen, R.-X. Wu, Y. Yin, P. Zhao, H. Chen, Y. Li, Z. Zhou, N. Engheta, V.S. Asadchy, C. Simovski, S.A. Tretyakov, B. Yang, S.D. Campbell, Y. Hao, D.H. Werner, S. Sun, L. Zhou, S. Xu, H.-B. Sun, Z. Zhou, Z. Li, G. Zheng, X. Chen, T. Li, S.-N. Zhu, J. Zhou, J. Zhao, Z. Liu, Y. Zhang, Q. Zhang, M. Gu, S. Xiao, Y. Liu, X. Zhang, Y. Tang, G. Li, T. Zentgraf, K. Koshelev, Y.S. Kivshar, X. Li, T. Badloe, L. Huang, J. Rho, S. Wang, D.P. Tsai, A.Yu. Bykov, A.V. Krasavin, A.V. Zayats, C. McDonnell, T. Ellenbogen, X. Luo, M. Pu, F.J. Garcia-Vidal, L. Liu, Z. Li, W. Tang, H.F. Ma, J. Zhang, Y. Luo, X. Zhang, H.C. Zhang, P.H. He, L.P. Zhang, X. Wan, H. Wu, S. Liu, W.X. Jiang, X.G. Zhang, C. Qiu, Q. Ma, C. Liu, L. Li, J. Han, L. Li, M. Cotrufo, C. Caloz, Z.-L. Deck-Léger, A. Bahrami, O. Céspedes, E. Galiffi, P.A. Huidobro, Q. Cheng, J.Y. Dai, J.C. Ke, L. Zhang, V. Galdi, M. Di Renzo, Journal of Physics: Photonics (2024).' date_created: 2024-02-20T06:58:48Z date_updated: 2024-02-20T07:03:00Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1088/2515-7647/ad1a3b keyword: - Electrical and Electronic Engineering - Atomic and Molecular Physics - and Optics - Electronic - Optical and Magnetic Materials language: - iso: eng main_file_link: - open_access: '1' url: https://iopscience.iop.org/article/10.1088/2515-7647/ad1a3b oa: '1' publication: 'Journal of Physics: Photonics' publication_identifier: issn: - 2515-7647 publication_status: published publisher: IOP Publishing status: public title: Roadmap on electromagnetic metamaterials and metasurfaces type: journal_article user_id: '30525' year: '2024' ... --- _id: '43421' abstract: - lang: eng text: The achievement of a flat metasurface has realized extraordinary control over light–matter interaction at the nanoscale, enabling widespread use in imaging, holography, and biophotonics. However, three-dimensional metasurfaces with the potential to provide additional light–matter manipulation flexibility attract only little interest. Here, we demonstrate a three-dimensional metasurface scheme capable of providing dual phase control through out-of-plane plasmonic resonance of L-shape antennas. Under circularly polarized excitation at a specific wavelength, the L-shape antennas with rotating orientation angle act as spatially variant three-dimensional tilted dipoles and are able to generate desire phase delay for different polarization components. Generalized Snell's law is achieved for both in-plane and out-of-plane dipole components through arranging such L-shape antennas into arrays. These three-dimensional metasurfaces suggest a route for wavefront modulation and a variety of nanophotonic applications. article_number: '141702' article_type: original author: - first_name: Tianyou full_name: Li, Tianyou last_name: Li - first_name: Yanjie full_name: Chen, Yanjie last_name: Chen - first_name: Yongtian full_name: Wang, Yongtian last_name: Wang - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Lingling full_name: Huang, Lingling last_name: Huang citation: ama: Li T, Chen Y, Wang Y, Zentgraf T, Huang L. Three-dimensional dipole momentum analog based on L-shape metasurface. Applied Physics Letters. 2023;122(14). doi:10.1063/5.0142389 apa: Li, T., Chen, Y., Wang, Y., Zentgraf, T., & Huang, L. (2023). Three-dimensional dipole momentum analog based on L-shape metasurface. Applied Physics Letters, 122(14), Article 141702. https://doi.org/10.1063/5.0142389 bibtex: '@article{Li_Chen_Wang_Zentgraf_Huang_2023, title={Three-dimensional dipole momentum analog based on L-shape metasurface}, volume={122}, DOI={10.1063/5.0142389}, number={14141702}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Li, Tianyou and Chen, Yanjie and Wang, Yongtian and Zentgraf, Thomas and Huang, Lingling}, year={2023} }' chicago: Li, Tianyou, Yanjie Chen, Yongtian Wang, Thomas Zentgraf, and Lingling Huang. “Three-Dimensional Dipole Momentum Analog Based on L-Shape Metasurface.” Applied Physics Letters 122, no. 14 (2023). https://doi.org/10.1063/5.0142389. ieee: 'T. Li, Y. Chen, Y. Wang, T. Zentgraf, and L. Huang, “Three-dimensional dipole momentum analog based on L-shape metasurface,” Applied Physics Letters, vol. 122, no. 14, Art. no. 141702, 2023, doi: 10.1063/5.0142389.' mla: Li, Tianyou, et al. “Three-Dimensional Dipole Momentum Analog Based on L-Shape Metasurface.” Applied Physics Letters, vol. 122, no. 14, 141702, AIP Publishing, 2023, doi:10.1063/5.0142389. short: T. Li, Y. Chen, Y. Wang, T. Zentgraf, L. Huang, Applied Physics Letters 122 (2023). date_created: 2023-04-06T06:01:06Z date_updated: 2023-04-06T06:02:58Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1063/5.0142389 intvolume: ' 122' issue: '14' keyword: - Physics and Astronomy (miscellaneous) language: - iso: eng publication: Applied Physics Letters publication_identifier: issn: - 0003-6951 - 1077-3118 publication_status: published publisher: AIP Publishing quality_controlled: '1' status: public title: Three-dimensional dipole momentum analog based on L-shape metasurface type: journal_article user_id: '30525' volume: 122 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: '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: '44044' abstract: - lang: eng text: "Dispersion is present in every optical setup and is often an undesired effect, especially in nonlinear-optical experiments where ultrashort laser pulses are needed. Typically, bulky pulse compressors consisting of gratings or prisms are used\r\nto address this issue by precompensating the dispersion of the optical components. However, these devices are only able to compensate for a part of the dispersion (second-order dispersion). Here, we present a compact pulse-shaping device that uses plasmonic metasurfaces to apply an arbitrarily designed spectral phase delay allowing for a full dispersion control. Furthermore, with specific phase encodings, this device can be used to temporally reshape the incident laser pulses into more complex pulse forms such as a double pulse. We verify the performance of our device by using an SHG-FROG measurement setup together with a retrieval algorithm to extract the dispersion that our device applies to an incident laser pulse." article_type: original author: - first_name: René full_name: Geromel, René last_name: Geromel - first_name: Philip full_name: Georgi, Philip last_name: Georgi - first_name: Maximilian full_name: Protte, Maximilian id: '46170' last_name: Protte - first_name: Shiwei full_name: Lei, Shiwei last_name: Lei - first_name: Tim full_name: Bartley, Tim id: '49683' last_name: Bartley - first_name: Lingling full_name: Huang, Lingling last_name: Huang - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 citation: ama: Geromel R, Georgi P, Protte M, et al. Compact Metasurface-Based Optical Pulse-Shaping Device. Nano Letters. 2023;23(8):3196-3201. doi:10.1021/acs.nanolett.2c04980 apa: Geromel, R., Georgi, P., Protte, M., Lei, S., Bartley, T., Huang, L., & Zentgraf, T. (2023). Compact Metasurface-Based Optical Pulse-Shaping Device. Nano Letters, 23(8), 3196–3201. https://doi.org/10.1021/acs.nanolett.2c04980 bibtex: '@article{Geromel_Georgi_Protte_Lei_Bartley_Huang_Zentgraf_2023, title={Compact Metasurface-Based Optical Pulse-Shaping Device}, volume={23}, DOI={10.1021/acs.nanolett.2c04980}, number={8}, journal={Nano Letters}, publisher={American Chemical Society (ACS)}, author={Geromel, René and Georgi, Philip and Protte, Maximilian and Lei, Shiwei and Bartley, Tim and Huang, Lingling and Zentgraf, Thomas}, year={2023}, pages={3196–3201} }' chicago: 'Geromel, René, Philip Georgi, Maximilian Protte, Shiwei Lei, Tim Bartley, Lingling Huang, and Thomas Zentgraf. “Compact Metasurface-Based Optical Pulse-Shaping Device.” Nano Letters 23, no. 8 (2023): 3196–3201. https://doi.org/10.1021/acs.nanolett.2c04980.' ieee: 'R. Geromel et al., “Compact Metasurface-Based Optical Pulse-Shaping Device,” Nano Letters, vol. 23, no. 8, pp. 3196–3201, 2023, doi: 10.1021/acs.nanolett.2c04980.' mla: Geromel, René, et al. “Compact Metasurface-Based Optical Pulse-Shaping Device.” Nano Letters, vol. 23, no. 8, American Chemical Society (ACS), 2023, pp. 3196–201, doi:10.1021/acs.nanolett.2c04980. short: R. Geromel, P. Georgi, M. Protte, S. Lei, T. Bartley, L. Huang, T. Zentgraf, Nano Letters 23 (2023) 3196–3201. date_created: 2023-04-18T05:47:22Z date_updated: 2023-05-12T11:17:51Z ddc: - '530' department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1021/acs.nanolett.2c04980 file: - access_level: closed content_type: application/pdf creator: zentgraf date_created: 2023-04-18T05:50:19Z date_updated: 2023-04-18T05:50:19Z file_id: '44045' file_name: acs.nanolett.2c04980.pdf file_size: 1315966 relation: main_file success: 1 file_date_updated: 2023-04-18T05:50:19Z funded_apc: '1' has_accepted_license: '1' intvolume: ' 23' issue: '8' keyword: - Mechanical Engineering - Condensed Matter Physics - General Materials Science - General Chemistry - Bioengineering language: - iso: eng main_file_link: - open_access: '1' url: https://pubs.acs.org/doi/full/10.1021/acs.nanolett.2c04980 oa: '1' page: 3196 - 3201 project: - _id: '53' name: 'TRR 142: TRR 142' - _id: '55' name: 'TRR 142 - B: TRR 142 - Project Area B' - _id: '170' name: 'TRR 142 - B09: TRR 142 - Subproject B09' - _id: '171' name: 'TRR 142 - C07: TRR 142 - Subproject C07' - _id: '56' name: 'TRR 142 - C: TRR 142 - Project Area C' publication: Nano Letters publication_identifier: issn: - 1530-6984 - 1530-6992 publication_status: published publisher: American Chemical Society (ACS) quality_controlled: '1' status: public title: Compact Metasurface-Based Optical Pulse-Shaping Device type: journal_article user_id: '30525' volume: 23 year: '2023' ... --- _id: '45868' abstract: - lang: eng text: Perfect vector vortex beams (PVVBs) have attracted considerable interest due to their peculiar optical features. PVVBs are typically generated through the superposition of perfect vortex beams, which suffer from the limited number of topological charges (TCs). Furthermore, dynamic control of PVVBs is desirable and has not been reported. We propose and experimentally demonstrate hybrid grafted perfect vector vortex beams (GPVVBs) and their dynamic control. Hybrid GPVVBs are generated through the superposition of grafted perfect vortex beams with a multifunctional metasurface. The generated hybrid GPVVBs possess spatially variant rates of polarization change due to the involvement of more TCs. Each hybrid GPVVB includes different GPVVBs in the same beam, adding more design flexibility. Moreover, these beams are dynamically controlled with a rotating half waveplate. The generated dynamic GPVVBs may find applications in the fields where dynamic control is in high demand, including optical encryption, dense data communication, and multiple particle manipulation. article_number: '3915' author: - first_name: Hammad full_name: Ahmed, Hammad last_name: Ahmed - first_name: Muhammad Afnan full_name: Ansari, Muhammad Afnan last_name: Ansari - first_name: Yan full_name: Li, Yan last_name: Li - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Muhammad Qasim full_name: Mehmood, Muhammad Qasim last_name: Mehmood - first_name: Xianzhong full_name: Chen, Xianzhong last_name: Chen citation: ama: Ahmed H, Ansari MA, Li Y, Zentgraf T, Mehmood MQ, Chen X. Dynamic control of hybrid grafted perfect vector vortex beams. Nature Communications. 2023;14(1). doi:10.1038/s41467-023-39599-8 apa: Ahmed, H., Ansari, M. A., Li, Y., Zentgraf, T., Mehmood, M. Q., & Chen, X. (2023). Dynamic control of hybrid grafted perfect vector vortex beams. Nature Communications, 14(1), Article 3915. https://doi.org/10.1038/s41467-023-39599-8 bibtex: '@article{Ahmed_Ansari_Li_Zentgraf_Mehmood_Chen_2023, title={Dynamic control of hybrid grafted perfect vector vortex beams}, volume={14}, DOI={10.1038/s41467-023-39599-8}, number={13915}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Ahmed, Hammad and Ansari, Muhammad Afnan and Li, Yan and Zentgraf, Thomas and Mehmood, Muhammad Qasim and Chen, Xianzhong}, year={2023} }' chicago: Ahmed, Hammad, Muhammad Afnan Ansari, Yan Li, Thomas Zentgraf, Muhammad Qasim Mehmood, and Xianzhong Chen. “Dynamic Control of Hybrid Grafted Perfect Vector Vortex Beams.” Nature Communications 14, no. 1 (2023). https://doi.org/10.1038/s41467-023-39599-8. ieee: 'H. Ahmed, M. A. Ansari, Y. Li, T. Zentgraf, M. Q. Mehmood, and X. Chen, “Dynamic control of hybrid grafted perfect vector vortex beams,” Nature Communications, vol. 14, no. 1, Art. no. 3915, 2023, doi: 10.1038/s41467-023-39599-8.' mla: Ahmed, Hammad, et al. “Dynamic Control of Hybrid Grafted Perfect Vector Vortex Beams.” Nature Communications, vol. 14, no. 1, 3915, Springer Science and Business Media LLC, 2023, doi:10.1038/s41467-023-39599-8. short: H. Ahmed, M.A. Ansari, Y. Li, T. Zentgraf, M.Q. Mehmood, X. Chen, Nature Communications 14 (2023). date_created: 2023-07-06T06:34:37Z date_updated: 2023-07-06T06:42:10Z ddc: - '530' department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1038/s41467-023-39599-8 file: - access_level: closed content_type: application/pdf creator: zentgraf date_created: 2023-07-06T06:40:28Z date_updated: 2023-07-06T06:40:28Z file_id: '45869' file_name: NatureCommun_Ahmed_2023.pdf file_size: 4341041 relation: main_file success: 1 file_date_updated: 2023-07-06T06:40:28Z has_accepted_license: '1' intvolume: ' 14' issue: '1' keyword: - General Physics and Astronomy - General Biochemistry - Genetics and Molecular Biology - General Chemistry - Multidisciplinary language: - iso: eng main_file_link: - open_access: '1' oa: '1' publication: Nature Communications publication_identifier: issn: - 2041-1723 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: Dynamic control of hybrid grafted perfect vector vortex beams type: journal_article user_id: '30525' volume: 14 year: '2023' ... --- _id: '46485' abstract: - lang: eng text: We present a miniaturized pulse shaping device that creates an arbitrary dispersion through the interaction of multiple metasurfaces on less than 2 mm3 volume. For this, a metalens and a grating-metasurface between two silver mirrors are fabricated. The grating contains further phase information to achieve the device's pulse shaping functionality. article_number: FTh4D.3 author: - first_name: René full_name: Geromel, René last_name: Geromel - first_name: Philip full_name: Georgi, Philip last_name: Georgi - first_name: Maximilian full_name: Protte, Maximilian id: '46170' last_name: Protte - first_name: Tim full_name: Bartley, Tim id: '49683' last_name: Bartley - first_name: Lingling full_name: Huang, Lingling last_name: Huang - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 citation: ama: 'Geromel R, Georgi P, Protte M, Bartley T, Huang L, Zentgraf T. Dispersion control with integrated plasmonic metasurfaces. In: CLEO: Fundamental Science 2023. Technical Digest Series. Optica Publishing Group; 2023. doi:10.1364/cleo_fs.2023.fth4d.3' apa: 'Geromel, R., Georgi, P., Protte, M., Bartley, T., Huang, L., & Zentgraf, T. (2023). Dispersion control with integrated plasmonic metasurfaces. CLEO: Fundamental Science 2023, Article FTh4D.3. CLEO: Fundamental Science 2023, San Jose, USA. https://doi.org/10.1364/cleo_fs.2023.fth4d.3' bibtex: '@inproceedings{Geromel_Georgi_Protte_Bartley_Huang_Zentgraf_2023, series={Technical Digest Series}, title={Dispersion control with integrated plasmonic metasurfaces}, DOI={10.1364/cleo_fs.2023.fth4d.3}, number={FTh4D.3}, booktitle={CLEO: Fundamental Science 2023}, publisher={Optica Publishing Group}, author={Geromel, René and Georgi, Philip and Protte, Maximilian and Bartley, Tim and Huang, Lingling and Zentgraf, Thomas}, year={2023}, collection={Technical Digest Series} }' chicago: 'Geromel, René, Philip Georgi, Maximilian Protte, Tim Bartley, Lingling Huang, and Thomas Zentgraf. “Dispersion Control with Integrated Plasmonic Metasurfaces.” In CLEO: Fundamental Science 2023. Technical Digest Series. Optica Publishing Group, 2023. https://doi.org/10.1364/cleo_fs.2023.fth4d.3.' ieee: 'R. Geromel, P. Georgi, M. Protte, T. Bartley, L. Huang, and T. Zentgraf, “Dispersion control with integrated plasmonic metasurfaces,” presented at the CLEO: Fundamental Science 2023, San Jose, USA, 2023, doi: 10.1364/cleo_fs.2023.fth4d.3.' mla: 'Geromel, René, et al. “Dispersion Control with Integrated Plasmonic Metasurfaces.” CLEO: Fundamental Science 2023, FTh4D.3, Optica Publishing Group, 2023, doi:10.1364/cleo_fs.2023.fth4d.3.' short: 'R. Geromel, P. Georgi, M. Protte, T. Bartley, L. Huang, T. Zentgraf, in: CLEO: Fundamental Science 2023, Optica Publishing Group, 2023.' conference: end_date: 2023-05-12 location: San Jose, USA name: 'CLEO: Fundamental Science 2023' start_date: 2023-05-07 date_created: 2023-08-14T08:19:22Z date_updated: 2023-08-14T08:22:31Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1364/cleo_fs.2023.fth4d.3 language: - iso: eng project: - _id: '53' grant_number: '231447078' name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen' - _id: '55' name: 'TRR 142 - B: TRR 142 - Project Area B' - _id: '170' grant_number: '231447078' name: 'TRR 142 - B09: TRR 142 - Effiziente Erzeugung mit maßgeschneiderter optischer Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen (B09*)' publication: 'CLEO: Fundamental Science 2023' publication_status: published publisher: Optica Publishing Group series_title: Technical Digest Series status: public title: Dispersion control with integrated plasmonic metasurfaces type: conference user_id: '30525' year: '2023' ... --- _id: '47543' author: - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 citation: ama: 'Zentgraf T. Symmetry governed nonlinear selection rules in nanophotonics . In: Panoiu NC, ed. Fundamentals and Applications of Nonlinear Nanophotonics. 1st ed. Nanophotonics Series. Elsevier; 2023. doi:10.1016/B978-0-323-90614-2.00011-0' apa: Zentgraf, T. (2023). Symmetry governed nonlinear selection rules in nanophotonics . In N. C. Panoiu (Ed.), Fundamentals and Applications of Nonlinear Nanophotonics (1st ed.). Elsevier. https://doi.org/10.1016/B978-0-323-90614-2.00011-0 bibtex: '@inbook{Zentgraf_2023, place={Amsterdam}, edition={1}, series={Nanophotonics Series}, title={Symmetry governed nonlinear selection rules in nanophotonics }, DOI={10.1016/B978-0-323-90614-2.00011-0}, booktitle={Fundamentals and Applications of Nonlinear Nanophotonics}, publisher={Elsevier}, author={Zentgraf, Thomas}, editor={Panoiu, Nicoae C.}, year={2023}, collection={Nanophotonics Series} }' chicago: 'Zentgraf, Thomas. “Symmetry Governed Nonlinear Selection Rules in Nanophotonics .” In Fundamentals and Applications of Nonlinear Nanophotonics, edited by Nicoae C. Panoiu, 1st ed. Nanophotonics Series. Amsterdam: Elsevier, 2023. https://doi.org/10.1016/B978-0-323-90614-2.00011-0.' ieee: 'T. Zentgraf, “Symmetry governed nonlinear selection rules in nanophotonics ,” in Fundamentals and Applications of Nonlinear Nanophotonics, 1st ed., N. C. Panoiu, Ed. Amsterdam: Elsevier, 2023.' mla: Zentgraf, Thomas. “Symmetry Governed Nonlinear Selection Rules in Nanophotonics .” Fundamentals and Applications of Nonlinear Nanophotonics, edited by Nicoae C. Panoiu, 1st ed., Elsevier, 2023, doi:10.1016/B978-0-323-90614-2.00011-0. short: 'T. Zentgraf, in: N.C. Panoiu (Ed.), Fundamentals and Applications of Nonlinear Nanophotonics, 1st ed., Elsevier, Amsterdam, 2023.' date_created: 2023-10-04T06:22:23Z date_updated: 2023-10-04T06:22:41Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1016/B978-0-323-90614-2.00011-0 edition: '1' editor: - first_name: Nicoae C. full_name: Panoiu, Nicoae C. last_name: Panoiu language: - iso: eng main_file_link: - url: https://www.sciencedirect.com/science/article/pii/B9780323906142000110 place: Amsterdam project: - _id: '55' name: 'TRR 142 - B: TRR 142 - Project Area B' - _id: '170' grant_number: '231447078' name: 'TRR 142 - B09: TRR 142 - Effiziente Erzeugung mit maßgeschneiderter optischer Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen (B09*)' - _id: '53' grant_number: '231447078' name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen' publication: Fundamentals and Applications of Nonlinear Nanophotonics publication_identifier: isbn: - 978-0-323-90614-2 publication_status: published publisher: Elsevier series_title: Nanophotonics Series status: public title: 'Symmetry governed nonlinear selection rules in nanophotonics ' type: book_chapter user_id: '30525' year: '2023' ... --- _id: '49607' abstract: - lang: eng text: In this work, we utilize thin dielectric meta-atoms placed on a silver substrate to efficiently enhance and manipulate the third-harmonic generation. We theoretically and experimentally reveal that when the structural symmetry of the meta-atom is incompatible with the lattice symmetry of an array, some generalized nonlinear geometric phases appear, which offers new possibilities for harmonic generation control beyond the accessible symmetries governed by the selection rule. The underlying mechanism is attributed to the modified rotation of the effective principal axis of a dense meta-atom array, where the strong coupling among the units gives rise to a generalized linear geometric phase modulation of the pump light. Therefore, nonlinear geometric phases carried by third-harmonic emissions are the natural result of the wave-mixing process among the modes excited at the fundamental frequency. This mechanism further points out a new strategy to predict the nonlinear geometric phases delivered by the nanostructures according to their linear responses. Our design is simple and efficient and offers alternatives for the nonlinear meta-devices that are capable of flexible photon generation and manipulation. article_type: original author: - first_name: Bingyi full_name: Liu, Bingyi last_name: Liu - first_name: René full_name: Geromel, René last_name: Geromel - first_name: Zhaoxian full_name: Su, Zhaoxian last_name: Su - first_name: Kai full_name: Guo, Kai last_name: Guo - first_name: Yongtian full_name: Wang, Yongtian last_name: Wang - first_name: Zhongyi full_name: Guo, Zhongyi last_name: Guo - first_name: Lingling full_name: Huang, Lingling last_name: Huang - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 citation: ama: Liu B, Geromel R, Su Z, et al. Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design. ACS Photonics. Published online 2023. doi:10.1021/acsphotonics.3c01163 apa: Liu, B., Geromel, R., Su, Z., Guo, K., Wang, Y., Guo, Z., Huang, L., & Zentgraf, T. (2023). Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design. ACS Photonics. https://doi.org/10.1021/acsphotonics.3c01163 bibtex: '@article{Liu_Geromel_Su_Guo_Wang_Guo_Huang_Zentgraf_2023, title={Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design}, DOI={10.1021/acsphotonics.3c01163}, journal={ACS Photonics}, publisher={American Chemical Society (ACS)}, author={Liu, Bingyi and Geromel, René and Su, Zhaoxian and Guo, Kai and Wang, Yongtian and Guo, Zhongyi and Huang, Lingling and Zentgraf, Thomas}, year={2023} }' chicago: Liu, Bingyi, René Geromel, Zhaoxian Su, Kai Guo, Yongtian Wang, Zhongyi Guo, Lingling Huang, and Thomas Zentgraf. “Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design.” ACS Photonics, 2023. https://doi.org/10.1021/acsphotonics.3c01163. ieee: 'B. Liu et al., “Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design,” ACS Photonics, 2023, doi: 10.1021/acsphotonics.3c01163.' mla: Liu, Bingyi, et al. “Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design.” ACS Photonics, American Chemical Society (ACS), 2023, doi:10.1021/acsphotonics.3c01163. short: B. Liu, R. Geromel, Z. Su, K. Guo, Y. Wang, Z. Guo, L. Huang, T. Zentgraf, ACS Photonics (2023). date_created: 2023-12-13T14:11:41Z date_updated: 2023-12-13T14:14:56Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1021/acsphotonics.3c01163 funded_apc: '1' keyword: - Electrical and Electronic Engineering - Atomic and Molecular Physics - and Optics - Biotechnology - Electronic - Optical and Magnetic Materials language: - iso: eng main_file_link: - open_access: '1' url: https://pubs.acs.org/doi/full/10.1021/acsphotonics.3c01163 oa: '1' project: - _id: '170' grant_number: '231447078' name: 'TRR 142 - B09: TRR 142 - Effiziente Erzeugung mit maßgeschneiderter optischer Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen (B09*)' - _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' publication: ACS Photonics publication_identifier: issn: - 2330-4022 - 2330-4022 publication_status: published publisher: American Chemical Society (ACS) quality_controlled: '1' status: public title: Nonlinear Dielectric Geometric-Phase Metasurface with Simultaneous Structure and Lattice Symmetry Design type: journal_article user_id: '30525' year: '2023' ... --- _id: '40513' abstract: - lang: eng text: Geometric-phase dielectric meta-lenses made of silicon with high numerical aperture and short focal lengths are fabricated and characterised. For circularly polarised light, the same meta-lens can act as a converging or diverging lens, depending on the handedness of the circular polarisation. This effect enables application for optical tweezers that trap or release µm-size polymer beads floating in a microfluidic channel on demand. An electrically addressable polarisation converter based on liquid crystals may be used to switch between the two states of polarisation, at which the light transmitted through the meta-lens is focused (trapping) or defocussed (releasing), respectively. author: - first_name: René full_name: Geromel, René last_name: Geromel - first_name: Roman full_name: Rennerich, Roman last_name: Rennerich - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Heinz-Siegfried full_name: Kitzerow, Heinz-Siegfried id: '254' last_name: Kitzerow citation: ama: Geromel R, Rennerich R, Zentgraf T, Kitzerow H-S. Geometric-phase metalens to be used for tunable optical tweezers in microfluidics. Liquid Crystals. 2023;50(7-10):1193-1203. doi:10.1080/02678292.2023.2171146 apa: Geromel, R., Rennerich, R., Zentgraf, T., & Kitzerow, H.-S. (2023). Geometric-phase metalens to be used for tunable optical tweezers in microfluidics. Liquid Crystals, 50(7–10), 1193–1203. https://doi.org/10.1080/02678292.2023.2171146 bibtex: '@article{Geromel_Rennerich_Zentgraf_Kitzerow_2023, title={Geometric-phase metalens to be used for tunable optical tweezers in microfluidics}, volume={50}, DOI={10.1080/02678292.2023.2171146}, number={7–10}, journal={Liquid Crystals}, publisher={Taylor & Francis}, author={Geromel, René and Rennerich, Roman and Zentgraf, Thomas and Kitzerow, Heinz-Siegfried}, year={2023}, pages={1193–1203} }' chicago: 'Geromel, René, Roman Rennerich, Thomas Zentgraf, and Heinz-Siegfried Kitzerow. “Geometric-Phase Metalens to Be Used for Tunable Optical Tweezers in Microfluidics.” Liquid Crystals 50, no. 7–10 (2023): 1193–1203. https://doi.org/10.1080/02678292.2023.2171146.' ieee: 'R. Geromel, R. Rennerich, T. Zentgraf, and H.-S. Kitzerow, “Geometric-phase metalens to be used for tunable optical tweezers in microfluidics,” Liquid Crystals, vol. 50, no. 7–10, pp. 1193–1203, 2023, doi: 10.1080/02678292.2023.2171146.' mla: Geromel, René, et al. “Geometric-Phase Metalens to Be Used for Tunable Optical Tweezers in Microfluidics.” Liquid Crystals, vol. 50, no. 7–10, Taylor & Francis, 2023, pp. 1193–203, doi:10.1080/02678292.2023.2171146. short: R. Geromel, R. Rennerich, T. Zentgraf, H.-S. Kitzerow, Liquid Crystals 50 (2023) 1193–1203. date_created: 2023-01-27T12:42:16Z date_updated: 2023-12-13T15:56:05Z department: - _id: '313' - _id: '230' - _id: '638' doi: 10.1080/02678292.2023.2171146 intvolume: ' 50' issue: 7-10 language: - iso: eng page: 1193-1203 project: - _id: '53' grant_number: '231447078' name: 'TRR 142: TRR 142' - _id: '55' name: 'TRR 142 - B: TRR 142 - Project Area B' publication: Liquid Crystals publisher: Taylor & Francis quality_controlled: '1' status: public title: Geometric-phase metalens to be used for tunable optical tweezers in microfluidics type: journal_article user_id: '254' volume: 50 year: '2023' ... --- _id: '26747' abstract: - lang: eng text: Metasurfaces provide applications for a variety of flat elements and devices due to the ability to modulate light with subwavelength structures. The working principle meanwhile gives rise to the crucial problem and challenge to protect the metasurface from dust or clean the unavoidable contaminants during daily usage. Here, taking advantage of the intelligent bioinspired surfaces which exhibit self-cleaning properties, a versatile dielectric metasurface benefiting from the obtained superhydrophilic or quasi-superhydrophobic states is shown. The design is realized by embedding the metasurface inside a large area of wettability supporting structures, which is highly efficient in fabrication, and achieves both optical and wettability functionality at the same time. The superhydrophilic state enables an enhanced optical response with water, while the quasi-superhydrophobic state imparts the fragile antennas an ability to self-clean dust contamination. Furthermore, the metasurface can be easily switched and repeated between these two wettability or functional states by appropriate treatments in a repeatable way, without degrading the optical performance. The proposed design strategy will bring new opportunities to smart metasurfaces with improved optical performance, versatility, and physical stability. article_number: '2101781' article_type: original author: - first_name: Jinlong full_name: Lu, Jinlong last_name: Lu - first_name: Basudeb full_name: Sain, Basudeb last_name: Sain - first_name: Philip full_name: Georgi, Philip last_name: Georgi - first_name: Maximilian full_name: Protte, Maximilian last_name: Protte - first_name: Tim full_name: Bartley, Tim id: '49683' last_name: Bartley - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 citation: ama: Lu J, Sain B, Georgi P, Protte M, Bartley T, Zentgraf T. A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response. Advanced Optical Materials. 2022;10(1). doi:10.1002/adom.202101781 apa: Lu, J., Sain, B., Georgi, P., Protte, M., Bartley, T., & Zentgraf, T. (2022). A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response. Advanced Optical Materials, 10(1), Article 2101781. https://doi.org/10.1002/adom.202101781 bibtex: '@article{Lu_Sain_Georgi_Protte_Bartley_Zentgraf_2022, title={A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response}, volume={10}, DOI={10.1002/adom.202101781}, number={12101781}, journal={Advanced Optical Materials}, publisher={Wiley}, author={Lu, Jinlong and Sain, Basudeb and Georgi, Philip and Protte, Maximilian and Bartley, Tim and Zentgraf, Thomas}, year={2022} }' chicago: Lu, Jinlong, Basudeb Sain, Philip Georgi, Maximilian Protte, Tim Bartley, and Thomas Zentgraf. “A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response.” Advanced Optical Materials 10, no. 1 (2022). https://doi.org/10.1002/adom.202101781. ieee: 'J. Lu, B. Sain, P. Georgi, M. Protte, T. Bartley, and T. Zentgraf, “A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response,” Advanced Optical Materials, vol. 10, no. 1, Art. no. 2101781, 2022, doi: 10.1002/adom.202101781.' mla: Lu, Jinlong, et al. “A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response.” Advanced Optical Materials, vol. 10, no. 1, 2101781, Wiley, 2022, doi:10.1002/adom.202101781. short: J. Lu, B. Sain, P. Georgi, M. Protte, T. Bartley, T. Zentgraf, Advanced Optical Materials 10 (2022). date_created: 2021-10-25T06:34:38Z date_updated: 2022-02-28T08:26:45Z ddc: - '530' department: - _id: '15' - _id: '230' - _id: '289' doi: 10.1002/adom.202101781 file: - access_level: closed content_type: application/pdf creator: zentgraf date_created: 2021-10-25T06:42:52Z date_updated: 2021-10-25T06:42:52Z file_id: '26748' file_name: AdvOptMat_Lu_2021.pdf file_size: 2801333 relation: main_file success: 1 file_date_updated: 2021-10-25T06:42:52Z has_accepted_license: '1' intvolume: ' 10' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://onlinelibrary.wiley.com/doi/10.1002/adom.202101781 oa: '1' publication: Advanced Optical Materials publication_identifier: issn: - 2195-1071 - 2195-1071 publication_status: published publisher: Wiley quality_controlled: '1' status: public title: A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response type: journal_article user_id: '30525' volume: 10 year: '2022' ... --- _id: '30195' abstract: - lang: eng text: While plasmonic particles can provide optical resonances in a wide spectral range from the lower visible up to the near-infrared, often, symmetry effects are utilized to obtain particular optical responses. By breaking certain spatial symmetries, chiral structures arise and provide robust chiroptical responses to these plasmonic resonances. Here, we observe strong chiroptical responses in the linear and nonlinear optical regime for chiral L-handed helicoid-III nanoparticles and quantify them by means of an asymmetric factor, the so-called g-factor. We calculate the linear optical g-factors for two distinct chiroptical resonances to −0.12 and –0.43 and the nonlinear optical g-factors to −1.45 and −1.63. The results demonstrate that the chirality of the helicoid-III nanoparticles is strongly enhanced in the nonlinear regime. article_type: original author: - first_name: Florian full_name: Spreyer, Florian last_name: Spreyer - first_name: Jungho full_name: Mun, Jungho last_name: Mun - first_name: Hyeohn full_name: Kim, Hyeohn last_name: Kim - first_name: Ryeong Myeong full_name: Kim, Ryeong Myeong last_name: Kim - first_name: Ki Tae full_name: Nam, Ki Tae last_name: Nam - first_name: Junsuk full_name: Rho, Junsuk last_name: Rho - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 citation: ama: Spreyer F, Mun J, Kim H, et al. Second Harmonic Optical Circular Dichroism of Plasmonic Chiral Helicoid-III Nanoparticles. ACS Photonics. 2022;9(3):784–792. doi:10.1021/acsphotonics.1c00882 apa: Spreyer, F., Mun, J., Kim, H., Kim, R. M., Nam, K. T., Rho, J., & Zentgraf, T. (2022). Second Harmonic Optical Circular Dichroism of Plasmonic Chiral Helicoid-III Nanoparticles. ACS Photonics, 9(3), 784–792. https://doi.org/10.1021/acsphotonics.1c00882 bibtex: '@article{Spreyer_Mun_Kim_Kim_Nam_Rho_Zentgraf_2022, title={Second Harmonic Optical Circular Dichroism of Plasmonic Chiral Helicoid-III Nanoparticles}, volume={9}, DOI={10.1021/acsphotonics.1c00882}, number={3}, journal={ACS Photonics}, publisher={American Chemical Society (ACS)}, author={Spreyer, Florian and Mun, Jungho and Kim, Hyeohn and Kim, Ryeong Myeong and Nam, Ki Tae and Rho, Junsuk and Zentgraf, Thomas}, year={2022}, pages={784–792} }' chicago: 'Spreyer, Florian, Jungho Mun, Hyeohn Kim, Ryeong Myeong Kim, Ki Tae Nam, Junsuk Rho, and Thomas Zentgraf. “Second Harmonic Optical Circular Dichroism of Plasmonic Chiral Helicoid-III Nanoparticles.” ACS Photonics 9, no. 3 (2022): 784–792. https://doi.org/10.1021/acsphotonics.1c00882.' ieee: 'F. Spreyer et al., “Second Harmonic Optical Circular Dichroism of Plasmonic Chiral Helicoid-III Nanoparticles,” ACS Photonics, vol. 9, no. 3, pp. 784–792, 2022, doi: 10.1021/acsphotonics.1c00882.' mla: Spreyer, Florian, et al. “Second Harmonic Optical Circular Dichroism of Plasmonic Chiral Helicoid-III Nanoparticles.” ACS Photonics, vol. 9, no. 3, American Chemical Society (ACS), 2022, pp. 784–792, doi:10.1021/acsphotonics.1c00882. short: F. Spreyer, J. Mun, H. Kim, R.M. Kim, K.T. Nam, J. Rho, T. Zentgraf, ACS Photonics 9 (2022) 784–792. date_created: 2022-03-03T07:18:18Z date_updated: 2022-03-21T07:48:27Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1021/acsphotonics.1c00882 external_id: arxiv: - arXiv:2202.13594 intvolume: ' 9' issue: '3' keyword: - Electrical and Electronic Engineering - Atomic and Molecular Physics - and Optics - Biotechnology - Electronic - Optical and Magnetic Materials language: - iso: eng main_file_link: - open_access: '1' url: https://pubs.acs.org/doi/full/10.1021/acsphotonics.1c00882 oa: '1' page: 784–792 publication: ACS Photonics publication_identifier: issn: - 2330-4022 - 2330-4022 publication_status: published publisher: American Chemical Society (ACS) quality_controlled: '1' related_material: link: - relation: research_paper url: https://pubs.acs.org/doi/full/10.1021/acsphotonics.1c00882 status: public title: Second Harmonic Optical Circular Dichroism of Plasmonic Chiral Helicoid-III Nanoparticles type: journal_article user_id: '30525' volume: 9 year: '2022' ... --- _id: '29902' article_number: '2104508' article_type: original author: - first_name: Bernhard full_name: Reineke Matsudo, Bernhard last_name: Reineke Matsudo - first_name: Basudeb full_name: Sain, Basudeb last_name: Sain - first_name: Luca full_name: Carletti, Luca last_name: Carletti - first_name: Xue full_name: Zhang, Xue last_name: Zhang - first_name: Wenlong full_name: Gao, Wenlong last_name: Gao - first_name: Costantino full_name: Angelis, Costantino last_name: Angelis - first_name: Lingling full_name: Huang, Lingling last_name: Huang - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 citation: ama: Reineke Matsudo B, Sain B, Carletti L, et al. Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces. Advanced Science. 2022;9(12). doi:10.1002/advs.202104508 apa: Reineke Matsudo, B., Sain, B., Carletti, L., Zhang, X., Gao, W., Angelis, C., Huang, L., & Zentgraf, T. (2022). Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces. Advanced Science, 9(12), Article 2104508. https://doi.org/10.1002/advs.202104508 bibtex: '@article{Reineke Matsudo_Sain_Carletti_Zhang_Gao_Angelis_Huang_Zentgraf_2022, title={Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces}, volume={9}, DOI={10.1002/advs.202104508}, number={122104508}, journal={Advanced Science}, publisher={Wiley}, author={Reineke Matsudo, Bernhard and Sain, Basudeb and Carletti, Luca and Zhang, Xue and Gao, Wenlong and Angelis, Costantino and Huang, Lingling and Zentgraf, Thomas}, year={2022} }' chicago: Reineke Matsudo, Bernhard, Basudeb Sain, Luca Carletti, Xue Zhang, Wenlong Gao, Costantino Angelis, Lingling Huang, and Thomas Zentgraf. “Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces.” Advanced Science 9, no. 12 (2022). https://doi.org/10.1002/advs.202104508. ieee: 'B. Reineke Matsudo et al., “Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces,” Advanced Science, vol. 9, no. 12, Art. no. 2104508, 2022, doi: 10.1002/advs.202104508.' mla: Reineke Matsudo, Bernhard, et al. “Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces.” Advanced Science, vol. 9, no. 12, 2104508, Wiley, 2022, doi:10.1002/advs.202104508. short: B. Reineke Matsudo, B. Sain, L. Carletti, X. Zhang, W. Gao, C. Angelis, L. Huang, T. Zentgraf, Advanced Science 9 (2022). date_created: 2022-02-21T08:09:02Z date_updated: 2022-04-25T13:04:44Z ddc: - '530' department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1002/advs.202104508 file: - access_level: closed content_type: application/pdf creator: zentgraf date_created: 2022-03-03T07:23:15Z date_updated: 2022-03-03T07:23:15Z file_id: '30196' file_name: 2022_ACSPhotonics_NonlinearChiral_Arxiv.pdf file_size: 1001422 relation: main_file success: 1 file_date_updated: 2022-03-03T07:23:15Z has_accepted_license: '1' intvolume: ' 9' issue: '12' keyword: - General Physics and Astronomy - General Engineering - Biochemistry - Genetics and Molecular Biology (miscellaneous) - General Materials Science - General Chemical Engineering - Medicine (miscellaneous) language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1002/advs.202104508 oa: '1' project: - _id: '53' name: 'TRR 142: TRR 142' - _id: '56' name: 'TRR 142 - C: TRR 142 - Project Area C' - _id: '75' name: 'TRR 142 - C5: TRR 142 - Subproject C5' publication: Advanced Science publication_identifier: issn: - 2198-3844 - 2198-3844 publication_status: published publisher: Wiley quality_controlled: '1' status: public title: Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces type: journal_article user_id: '30525' volume: 9 year: '2022' ... --- _id: '30964' article_number: '044022' article_type: letter_note author: - first_name: Wenlong full_name: Gao, Wenlong last_name: Gao - first_name: Basudeb full_name: Sain, Basudeb last_name: Sain - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 citation: ama: Gao W, Sain B, Zentgraf T. Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces. Physical Review Applied. 2022;17(4). doi:10.1103/physrevapplied.17.044022 apa: Gao, W., Sain, B., & Zentgraf, T. (2022). Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces. Physical Review Applied, 17(4), Article 044022. https://doi.org/10.1103/physrevapplied.17.044022 bibtex: '@article{Gao_Sain_Zentgraf_2022, title={Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces}, volume={17}, DOI={10.1103/physrevapplied.17.044022}, number={4044022}, journal={Physical Review Applied}, publisher={American Physical Society (APS)}, author={Gao, Wenlong and Sain, Basudeb and Zentgraf, Thomas}, year={2022} }' chicago: Gao, Wenlong, Basudeb Sain, and Thomas Zentgraf. “Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces.” Physical Review Applied 17, no. 4 (2022). https://doi.org/10.1103/physrevapplied.17.044022. ieee: 'W. Gao, B. Sain, and T. Zentgraf, “Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces,” Physical Review Applied, vol. 17, no. 4, Art. no. 044022, 2022, doi: 10.1103/physrevapplied.17.044022.' mla: Gao, Wenlong, et al. “Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces.” Physical Review Applied, vol. 17, no. 4, 044022, American Physical Society (APS), 2022, doi:10.1103/physrevapplied.17.044022. short: W. Gao, B. Sain, T. Zentgraf, Physical Review Applied 17 (2022). date_created: 2022-04-27T11:07:03Z date_updated: 2022-04-27T11:09:11Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1103/physrevapplied.17.044022 intvolume: ' 17' issue: '4' keyword: - General Physics and Astronomy language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2202.11980 oa: '1' publication: Physical Review Applied publication_identifier: issn: - 2331-7019 publication_status: published publisher: American Physical Society (APS) quality_controlled: '1' status: public title: Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces type: journal_article user_id: '30525' volume: 17 year: '2022' ... --- _id: '32088' abstract: - lang: eng text: Subwavelength dielectric resonators assembled into metasurfaces have become a versatile tool for miniaturizing optical components approaching the nanoscale. An important class of metasurface functionalities is associated with asymmetry in both the generation and transmission of light with respect to reversals of the positions of emitters and receivers. The nonlinear light–matter interaction in metasurfaces offers a promising pathway towards miniaturization of the asymmetric control of light. Here we demonstrate asymmetric parametric generation of light in nonlinear metasurfaces. We assemble dissimilar nonlinear dielectric resonators into translucent metasurfaces that produce images in the visible spectral range on being illuminated by infrared radiation. By design, the metasurfaces produce different and completely independent images for the reversed direction of illumination, that is, when the positions of the infrared emitter and the visible light receiver are exchanged. Nonlinearity-enabled asymmetric control of light by subwavelength resonators paves the way towards novel nanophotonic components via dense integration of large quantities of nonlinear resonators into compact metasurface designs. article_type: original author: - first_name: Sergey S. full_name: Kruk, Sergey S. last_name: Kruk - first_name: Lei full_name: Wang, Lei last_name: Wang - first_name: Basudeb full_name: Sain, Basudeb last_name: Sain - first_name: Zhaogang full_name: Dong, Zhaogang last_name: Dong - first_name: Joel full_name: Yang, Joel last_name: Yang - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Yuri full_name: Kivshar, Yuri last_name: Kivshar citation: ama: Kruk SS, Wang L, Sain B, et al. Asymmetric parametric generation of images with nonlinear dielectric metasurfaces. Nature Photonics. 2022;16:561–565. doi:10.1038/s41566-022-01018-7 apa: Kruk, S. S., Wang, L., Sain, B., Dong, Z., Yang, J., Zentgraf, T., & Kivshar, Y. (2022). Asymmetric parametric generation of images with nonlinear dielectric metasurfaces. Nature Photonics, 16, 561–565. https://doi.org/10.1038/s41566-022-01018-7 bibtex: '@article{Kruk_Wang_Sain_Dong_Yang_Zentgraf_Kivshar_2022, title={Asymmetric parametric generation of images with nonlinear dielectric metasurfaces}, volume={16}, DOI={10.1038/s41566-022-01018-7}, journal={Nature Photonics}, publisher={Springer Science and Business Media LLC}, author={Kruk, Sergey S. and Wang, Lei and Sain, Basudeb and Dong, Zhaogang and Yang, Joel and Zentgraf, Thomas and Kivshar, Yuri}, year={2022}, pages={561–565} }' chicago: 'Kruk, Sergey S., Lei Wang, Basudeb Sain, Zhaogang Dong, Joel Yang, Thomas Zentgraf, and Yuri Kivshar. “Asymmetric Parametric Generation of Images with Nonlinear Dielectric Metasurfaces.” Nature Photonics 16 (2022): 561–565. https://doi.org/10.1038/s41566-022-01018-7.' ieee: 'S. S. Kruk et al., “Asymmetric parametric generation of images with nonlinear dielectric metasurfaces,” Nature Photonics, vol. 16, pp. 561–565, 2022, doi: 10.1038/s41566-022-01018-7.' mla: Kruk, Sergey S., et al. “Asymmetric Parametric Generation of Images with Nonlinear Dielectric Metasurfaces.” Nature Photonics, vol. 16, Springer Science and Business Media LLC, 2022, pp. 561–565, doi:10.1038/s41566-022-01018-7. short: S.S. Kruk, L. Wang, B. Sain, Z. Dong, J. Yang, T. Zentgraf, Y. Kivshar, Nature Photonics 16 (2022) 561–565. date_created: 2022-06-21T05:52:43Z date_updated: 2022-11-24T12:35:47Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1038/s41566-022-01018-7 intvolume: ' 16' keyword: - Atomic and Molecular Physics - and Optics - Electronic - Optical and Magnetic Materials language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2108.04425 oa: '1' page: 561–565 project: - _id: '53' name: 'TRR 142: TRR 142' - _id: '55' name: 'TRR 142 - B: TRR 142 - Project Area B' publication: Nature Photonics publication_identifier: issn: - 1749-4885 - 1749-4893 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: Asymmetric parametric generation of images with nonlinear dielectric metasurfaces type: journal_article user_id: '30525' volume: 16 year: '2022' ... --- _id: '34465' author: - first_name: Huddad full_name: laeim, Huddad last_name: laeim - first_name: Christian full_name: Schlickriede, Christian id: '59792' last_name: Schlickriede - first_name: Papichaya full_name: Chaisakul, Papichaya last_name: Chaisakul - first_name: Nattaporn full_name: Chattham, Nattaporn last_name: Chattham - first_name: Hathai full_name: Panitchakan, Hathai last_name: Panitchakan - first_name: Krisda full_name: Siangchaew, Krisda last_name: Siangchaew - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Apichart full_name: Pattanaporhratana, Apichart last_name: Pattanaporhratana citation: ama: 'laeim H, Schlickriede C, Chaisakul P, et al. Design and investigation of a metalens for efficiency enhancement of laser-waveguide coupling in a limited space system. In: Engheta N, Noginov MA, Zheludev NI, eds. Metamaterials, Metadevices, and Metasystems 2022. SPIE; 2022. doi:10.1117/12.2629789' apa: laeim, H., Schlickriede, C., Chaisakul, P., Chattham, N., Panitchakan, H., Siangchaew, K., Zentgraf, T., & Pattanaporhratana, A. (2022). Design and investigation of a metalens for efficiency enhancement of laser-waveguide coupling in a limited space system. In N. Engheta, M. A. Noginov, & N. I. Zheludev (Eds.), Metamaterials, Metadevices, and Metasystems 2022. SPIE. https://doi.org/10.1117/12.2629789 bibtex: '@inproceedings{laeim_Schlickriede_Chaisakul_Chattham_Panitchakan_Siangchaew_Zentgraf_Pattanaporhratana_2022, title={Design and investigation of a metalens for efficiency enhancement of laser-waveguide coupling in a limited space system}, DOI={10.1117/12.2629789}, booktitle={Metamaterials, Metadevices, and Metasystems 2022}, publisher={SPIE}, author={laeim, Huddad and Schlickriede, Christian and Chaisakul, Papichaya and Chattham, Nattaporn and Panitchakan, Hathai and Siangchaew, Krisda and Zentgraf, Thomas and Pattanaporhratana, Apichart}, editor={Engheta, Nader and Noginov, Mikhail A. and Zheludev, Nikolay I.}, year={2022} }' chicago: laeim, Huddad, Christian Schlickriede, Papichaya Chaisakul, Nattaporn Chattham, Hathai Panitchakan, Krisda Siangchaew, Thomas Zentgraf, and Apichart Pattanaporhratana. “Design and Investigation of a Metalens for Efficiency Enhancement of Laser-Waveguide Coupling in a Limited Space System.” In Metamaterials, Metadevices, and Metasystems 2022, edited by Nader Engheta, Mikhail A. Noginov, and Nikolay I. Zheludev. SPIE, 2022. https://doi.org/10.1117/12.2629789. ieee: 'H. laeim et al., “Design and investigation of a metalens for efficiency enhancement of laser-waveguide coupling in a limited space system,” in Metamaterials, Metadevices, and Metasystems 2022, 2022, doi: 10.1117/12.2629789.' mla: laeim, Huddad, et al. “Design and Investigation of a Metalens for Efficiency Enhancement of Laser-Waveguide Coupling in a Limited Space System.” Metamaterials, Metadevices, and Metasystems 2022, edited by Nader Engheta et al., SPIE, 2022, doi:10.1117/12.2629789. short: 'H. laeim, C. Schlickriede, P. Chaisakul, N. Chattham, H. Panitchakan, K. Siangchaew, T. Zentgraf, A. Pattanaporhratana, in: N. Engheta, M.A. Noginov, N.I. Zheludev (Eds.), Metamaterials, Metadevices, and Metasystems 2022, SPIE, 2022.' date_created: 2022-12-16T12:28:40Z date_updated: 2022-12-16T12:30:17Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1117/12.2629789 editor: - first_name: Nader full_name: Engheta, Nader last_name: Engheta - first_name: Mikhail A. full_name: Noginov, Mikhail A. last_name: Noginov - first_name: Nikolay I. full_name: Zheludev, Nikolay I. last_name: Zheludev language: - iso: eng publication: Metamaterials, Metadevices, and Metasystems 2022 publication_status: published publisher: SPIE status: public title: Design and investigation of a metalens for efficiency enhancement of laser-waveguide coupling in a limited space system type: conference user_id: '30525' year: '2022' ... --- _id: '31329' abstract: - lang: eng text: Highly directive antennas with the ability of shaping radiation patterns in desired directions are essential for efficient on-chip optical communication with reduced cross talk. In this paper, we design and optimize three distinct broadband traveling-wave tantalum pentoxide antennas exhibiting highly directional characteristics. Our antennas contain a director and reflector deposited on a glass substrate, which are excited by a dipole emitter placed in the feed gap between the two elements. Full-wave simulations in conjunction with global optimization provide structures with an enhanced linear directivity as high as 119 radiating in the substrate. The high directivity is a result of the interplay between two dominant TE modes and the leaky modes present in the antenna director. Furthermore, these low-loss dielectric antennas exhibit a near-unity radiation efficiency at the operational wavelength of 780 nm and maintain a broad bandwidth. Our numerical results are in good agreement with experimental measurements from the optimized antennas fabricated using a two-step electron-beam lithography, revealing the highly directive nature of our structures. We envision that our antenna designs can be conveniently adapted to other dielectric materials and prove instrumental for inter-chip optical communications and other on-chip applications. 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: Viktor full_name: Quiring, Viktor last_name: Quiring - first_name: Christof full_name: Eigner, Christof id: '13244' last_name: Eigner orcid: https://orcid.org/0000-0002-5693-3083 - 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: 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: Farheen H, Yan L-Y, Quiring V, et al. Broadband optical Ta2O5 antennas for directional emission of light. Optics Express. 2022;30(11):19288. doi:10.1364/oe.455815 apa: Farheen, H., Yan, L.-Y., Quiring, V., Eigner, C., Zentgraf, T., Linden, S., Förstner, J., & Myroshnychenko, V. (2022). Broadband optical Ta2O5 antennas for directional emission of light. Optics Express, 30(11), 19288. https://doi.org/10.1364/oe.455815 bibtex: '@article{Farheen_Yan_Quiring_Eigner_Zentgraf_Linden_Förstner_Myroshnychenko_2022, title={Broadband optical Ta2O5 antennas for directional emission of light}, volume={30}, DOI={10.1364/oe.455815}, number={11}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Farheen, Henna and Yan, Lok-Yee and Quiring, Viktor and Eigner, Christof and Zentgraf, Thomas and Linden, Stefan and Förstner, Jens and Myroshnychenko, Viktor}, year={2022}, pages={19288} }' chicago: 'Farheen, Henna, Lok-Yee Yan, Viktor Quiring, Christof Eigner, Thomas Zentgraf, Stefan Linden, Jens Förstner, and Viktor Myroshnychenko. “Broadband Optical Ta2O5 Antennas for Directional Emission of Light.” Optics Express 30, no. 11 (2022): 19288. https://doi.org/10.1364/oe.455815.' ieee: 'H. Farheen et al., “Broadband optical Ta2O5 antennas for directional emission of light,” Optics Express, vol. 30, no. 11, p. 19288, 2022, doi: 10.1364/oe.455815.' mla: Farheen, Henna, et al. “Broadband Optical Ta2O5 Antennas for Directional Emission of Light.” Optics Express, vol. 30, no. 11, Optica Publishing Group, 2022, p. 19288, doi:10.1364/oe.455815. short: H. Farheen, L.-Y. Yan, V. Quiring, C. Eigner, T. Zentgraf, S. Linden, J. Förstner, V. Myroshnychenko, Optics Express 30 (2022) 19288. date_created: 2022-05-18T16:39:17Z date_updated: 2022-05-18T20:01:46Z department: - _id: '61' - _id: '230' - _id: '429' doi: 10.1364/oe.455815 intvolume: ' 30' issue: '11' keyword: - tet_topic_opticalantenna language: - iso: eng page: '19288' project: - _id: '75' name: 'TRR 142 - C5: TRR 142 - Subproject C5' - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' publication: Optics Express publication_identifier: issn: - 1094-4087 publication_status: published publisher: Optica Publishing Group status: public title: Broadband optical Ta2O5 antennas for directional emission of light type: journal_article user_id: '158' volume: 30 year: '2022' ... --- _id: '31480' abstract: - lang: eng text: Optical geometric phase encoded by in-plane spatial orientation of microstructures has promoted the rapid development of numerous functional meta-devices. However, pushing the concept of the geometric phase toward the acoustic community still faces challenges. In this work, we utilize two acoustic nonlocal metagratings that could support a direct conversion between an acoustic plane wave and a designated vortex mode to obtain the acoustic geometric phase, in which an orbital angular momentum conversion process plays a vital role. In addition, we realize the acoustic geometric phases of different orders by merely varying the orientation angle of the acoustic nonlocal metagratings. Intriguingly, according to our developed theory, we reveal that the reflective acoustic geometric phase, which is twice the transmissive one, can be readily realized by transferring the transmitted configuration to a reflected one. Both the theoretical study and experimental measurements verify the announced transmissive and reflective acoustic geometric phases. Moreover, the reconfigurability and continuous phase modulation that covers the 2π range shown by the acoustic geometric phases provide us with the alternatives in advanced acoustic wavefront control. article_number: '211702' author: - first_name: Bingyi full_name: Liu, Bingyi last_name: Liu - first_name: Zhiling full_name: Zhou, Zhiling last_name: Zhou - first_name: Yongtian full_name: Wang, Yongtian last_name: Wang - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Yong full_name: Li, Yong last_name: Li - first_name: Lingling full_name: Huang, Lingling last_name: Huang citation: ama: Liu B, Zhou Z, Wang Y, Zentgraf T, Li Y, Huang L. Experimental verification of the acoustic geometric phase. Applied Physics Letters. 2022;120(21). doi:10.1063/5.0091474 apa: Liu, B., Zhou, Z., Wang, Y., Zentgraf, T., Li, Y., & Huang, L. (2022). Experimental verification of the acoustic geometric phase. Applied Physics Letters, 120(21), Article 211702. https://doi.org/10.1063/5.0091474 bibtex: '@article{Liu_Zhou_Wang_Zentgraf_Li_Huang_2022, title={Experimental verification of the acoustic geometric phase}, volume={120}, DOI={10.1063/5.0091474}, number={21211702}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Liu, Bingyi and Zhou, Zhiling and Wang, Yongtian and Zentgraf, Thomas and Li, Yong and Huang, Lingling}, year={2022} }' chicago: Liu, Bingyi, Zhiling Zhou, Yongtian Wang, Thomas Zentgraf, Yong Li, and Lingling Huang. “Experimental Verification of the Acoustic Geometric Phase.” Applied Physics Letters 120, no. 21 (2022). https://doi.org/10.1063/5.0091474. ieee: 'B. Liu, Z. Zhou, Y. Wang, T. Zentgraf, Y. Li, and L. Huang, “Experimental verification of the acoustic geometric phase,” Applied Physics Letters, vol. 120, no. 21, Art. no. 211702, 2022, doi: 10.1063/5.0091474.' mla: Liu, Bingyi, et al. “Experimental Verification of the Acoustic Geometric Phase.” Applied Physics Letters, vol. 120, no. 21, 211702, AIP Publishing, 2022, doi:10.1063/5.0091474. short: B. Liu, Z. Zhou, Y. Wang, T. Zentgraf, Y. Li, L. Huang, Applied Physics Letters 120 (2022). date_created: 2022-05-27T12:35:53Z date_updated: 2022-05-27T12:36:43Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1063/5.0091474 intvolume: ' 120' issue: '21' keyword: - Physics and Astronomy (miscellaneous) language: - iso: eng publication: Applied Physics Letters publication_identifier: issn: - 0003-6951 - 1077-3118 publication_status: published publisher: AIP Publishing status: public title: Experimental verification of the acoustic geometric phase type: journal_article user_id: '30525' volume: 120 year: '2022' ... --- _id: '28254' abstract: - lang: eng text: With the rapid advances of functional dielectric metasurfaces and their integration on on-chip nanophotonic devices, the necessity of metasurfaces working in different environments, especially in biological applications, arose. However, the metasurfaces’ performance is tied to the unit cell’s efficiency and ultimately the surrounding environment it was designed for, thus reducing its applicability if exposed to altering refractive index media. Here, we report a method to increase a metasurface’s versatility by covering the high-index metasurface with a low index porous SiO2 film, protecting the metasurface from environmental changes while keeping the working efficiency unchanged. We show, that a covered metasurface retains its functionality even when exposed to fluidic environments. article_type: original author: - first_name: René full_name: Geromel, René last_name: Geromel - first_name: Christian full_name: Weinberger, Christian id: '11848' last_name: Weinberger - first_name: Katja full_name: Brormann, Katja last_name: Brormann - first_name: Michael full_name: Tiemann, Michael id: '23547' last_name: Tiemann orcid: 0000-0003-1711-2722 - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 citation: ama: Geromel R, Weinberger C, Brormann K, Tiemann M, Zentgraf T. Porous SiO2 coated dielectric metasurface with consistent performance independent of environmental conditions. Optical Materials Express. 2022;12(1):13-21. doi:10.1364/ome.444264 apa: Geromel, R., Weinberger, C., Brormann, K., Tiemann, M., & Zentgraf, T. (2022). Porous SiO2 coated dielectric metasurface with consistent performance independent of environmental conditions. Optical Materials Express, 12(1), 13–21. https://doi.org/10.1364/ome.444264 bibtex: '@article{Geromel_Weinberger_Brormann_Tiemann_Zentgraf_2022, title={Porous SiO2 coated dielectric metasurface with consistent performance independent of environmental conditions}, volume={12}, DOI={10.1364/ome.444264}, number={1}, journal={Optical Materials Express}, publisher={Optica}, author={Geromel, René and Weinberger, Christian and Brormann, Katja and Tiemann, Michael and Zentgraf, Thomas}, year={2022}, pages={13–21} }' chicago: 'Geromel, René, Christian Weinberger, Katja Brormann, Michael Tiemann, and Thomas Zentgraf. “Porous SiO2 Coated Dielectric Metasurface with Consistent Performance Independent of Environmental Conditions.” Optical Materials Express 12, no. 1 (2022): 13–21. https://doi.org/10.1364/ome.444264.' ieee: 'R. Geromel, C. Weinberger, K. Brormann, M. Tiemann, and T. Zentgraf, “Porous SiO2 coated dielectric metasurface with consistent performance independent of environmental conditions,” Optical Materials Express, vol. 12, no. 1, pp. 13–21, 2022, doi: 10.1364/ome.444264.' mla: Geromel, René, et al. “Porous SiO2 Coated Dielectric Metasurface with Consistent Performance Independent of Environmental Conditions.” Optical Materials Express, vol. 12, no. 1, Optica, 2022, pp. 13–21, doi:10.1364/ome.444264. short: R. Geromel, C. Weinberger, K. Brormann, M. Tiemann, T. Zentgraf, Optical Materials Express 12 (2022) 13–21. date_created: 2021-12-02T18:47:42Z date_updated: 2023-03-08T08:13:58Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' - _id: '2' - _id: '35' - _id: '307' doi: 10.1364/ome.444264 intvolume: ' 12' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://www.osapublishing.org/ome/fulltext.cfm?uri=ome-12-1-13&id=465602 oa: '1' page: 13-21 publication: Optical Materials Express publication_identifier: issn: - 2159-3930 publication_status: published publisher: Optica quality_controlled: '1' status: public title: Porous SiO2 coated dielectric metasurface with consistent performance independent of environmental conditions type: journal_article user_id: '23547' volume: 12 year: '2022' ...