Observation of spatiotemporal optical vortices enabled by symmetry-breaking slanted nanograting
Abstract Providing additional degrees of freedom to manipulate light, spatiotemporal optical vortex (STOV) beams carrying transverse orbital angular momentum are of fundamental importance for spatiotemporal control of light-matter interactions. Unfortunately, existing methods to generate STOV are pl...
| Main Authors: | , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-04-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-47475-2 |
| _version_ | 1797209222111297536 |
|---|---|
| author | Pengcheng Huo Wei Chen Zixuan Zhang Yanzeng Zhang Mingze Liu Peicheng Lin Hui Zhang Zhaoxian Chen Henri Lezec Wenqi Zhu Amit Agrawal Chao Peng Yanqing Lu Ting Xu |
| author_facet | Pengcheng Huo Wei Chen Zixuan Zhang Yanzeng Zhang Mingze Liu Peicheng Lin Hui Zhang Zhaoxian Chen Henri Lezec Wenqi Zhu Amit Agrawal Chao Peng Yanqing Lu Ting Xu |
| author_sort | Pengcheng Huo |
| collection | DOAJ |
| description | Abstract Providing additional degrees of freedom to manipulate light, spatiotemporal optical vortex (STOV) beams carrying transverse orbital angular momentum are of fundamental importance for spatiotemporal control of light-matter interactions. Unfortunately, existing methods to generate STOV are plagued by various limitations such as inefficiency, bulkiness, and complexity. Here, we theoretically propose and experimentally demonstrate a microscale singlet platform composed of a slanted nanograting to generate STOV. Leveraging the intrinsic topological singularity induced by C 2 symmetry and z-mirror symmetry breaking of the slanted nanograting, STOV is generated through the Fourier transform of the spiral phase in the momentum-frequency space to the spatiotemporal domain. In experiments, we observe the space-time evolution of STOV carried by femtosecond pulses using a time-resolved interferometry technique and achieve a generation efficiency exceeding 40%. Our work sheds light on a compact and versatile platform for light pulse shaping, and paves the way towards a fully integrated system for spatiotemporal light manipulation. |
| first_indexed | 2024-04-24T09:51:16Z |
| format | Article |
| id | doaj.art-9bd12563d90343ff88c821cf11eed327 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-04-24T09:51:16Z |
| publishDate | 2024-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-9bd12563d90343ff88c821cf11eed3272024-04-14T11:21:59ZengNature PortfolioNature Communications2041-17232024-04-011511810.1038/s41467-024-47475-2Observation of spatiotemporal optical vortices enabled by symmetry-breaking slanted nanogratingPengcheng Huo0Wei Chen1Zixuan Zhang2Yanzeng Zhang3Mingze Liu4Peicheng Lin5Hui Zhang6Zhaoxian Chen7Henri Lezec8Wenqi Zhu9Amit Agrawal10Chao Peng11Yanqing Lu12Ting Xu13National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityState Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics, Frontiers Science Center for Nano-optoelectronics, Peking UniversityNational Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityNational Institute of Standards and TechnologyNational Institute of Standards and TechnologyNational Institute of Standards and TechnologyState Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics, Frontiers Science Center for Nano-optoelectronics, Peking UniversityNational Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityAbstract Providing additional degrees of freedom to manipulate light, spatiotemporal optical vortex (STOV) beams carrying transverse orbital angular momentum are of fundamental importance for spatiotemporal control of light-matter interactions. Unfortunately, existing methods to generate STOV are plagued by various limitations such as inefficiency, bulkiness, and complexity. Here, we theoretically propose and experimentally demonstrate a microscale singlet platform composed of a slanted nanograting to generate STOV. Leveraging the intrinsic topological singularity induced by C 2 symmetry and z-mirror symmetry breaking of the slanted nanograting, STOV is generated through the Fourier transform of the spiral phase in the momentum-frequency space to the spatiotemporal domain. In experiments, we observe the space-time evolution of STOV carried by femtosecond pulses using a time-resolved interferometry technique and achieve a generation efficiency exceeding 40%. Our work sheds light on a compact and versatile platform for light pulse shaping, and paves the way towards a fully integrated system for spatiotemporal light manipulation.https://doi.org/10.1038/s41467-024-47475-2 |
| spellingShingle | Pengcheng Huo Wei Chen Zixuan Zhang Yanzeng Zhang Mingze Liu Peicheng Lin Hui Zhang Zhaoxian Chen Henri Lezec Wenqi Zhu Amit Agrawal Chao Peng Yanqing Lu Ting Xu Observation of spatiotemporal optical vortices enabled by symmetry-breaking slanted nanograting Nature Communications |
| title | Observation of spatiotemporal optical vortices enabled by symmetry-breaking slanted nanograting |
| title_full | Observation of spatiotemporal optical vortices enabled by symmetry-breaking slanted nanograting |
| title_fullStr | Observation of spatiotemporal optical vortices enabled by symmetry-breaking slanted nanograting |
| title_full_unstemmed | Observation of spatiotemporal optical vortices enabled by symmetry-breaking slanted nanograting |
| title_short | Observation of spatiotemporal optical vortices enabled by symmetry-breaking slanted nanograting |
| title_sort | observation of spatiotemporal optical vortices enabled by symmetry breaking slanted nanograting |
| url | https://doi.org/10.1038/s41467-024-47475-2 |
| work_keys_str_mv | AT pengchenghuo observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting AT weichen observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting AT zixuanzhang observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting AT yanzengzhang observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting AT mingzeliu observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting AT peichenglin observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting AT huizhang observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting AT zhaoxianchen observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting AT henrilezec observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting AT wenqizhu observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting AT amitagrawal observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting AT chaopeng observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting AT yanqinglu observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting AT tingxu observationofspatiotemporalopticalvorticesenabledbysymmetrybreakingslantednanograting |