Wavefront shaping with nonlinear four-wave mixing
Abstract Wavefront manipulations have enabled wide applications across many interdisciplinary fields ranging from optics and microwaves to acoustics. However, the realizations of such functional surfaces heavily rely on micro/nanofabrication to define the structured surfaces, which are fixed and onl...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-02-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-29621-w |
| _version_ | 1797864917539225600 |
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| author | Dongyi Shen Jianjun Cao Wenjie Wan |
| author_facet | Dongyi Shen Jianjun Cao Wenjie Wan |
| author_sort | Dongyi Shen |
| collection | DOAJ |
| description | Abstract Wavefront manipulations have enabled wide applications across many interdisciplinary fields ranging from optics and microwaves to acoustics. However, the realizations of such functional surfaces heavily rely on micro/nanofabrication to define the structured surfaces, which are fixed and only work within a limited spectrum. To address these issues, previous attempts combining tunable materials like liquid crystal or phase-change ones onto the metasurfaces have permitted extra tunability and working spectra, however, these additional layers bring in inevitable loss and complicate the fabrication. Here we demonstrate a fabrication-free tunable flat slab using a nonlinear four-wave mixing process. By wavefront-shaping the pump onto the flat slab, we can successfully tune the effective nonlinear refraction angle of the emitting FWM beams according to the phase-matching condition. In this manner, a focusing and a defocusing nonlinear of FWM beam through the flat slab have been demonstrated with a converging and a diverging pump wavefronts, respectively. Furthermore, a beam steering scheme over a 20° angle has been realized through a non-degenerate four-wave mixing process by introducing a second pump. These features open up a door to manipulating light propagation in an all-optical manner, paving the way to more functional and tunable flat slab devices in the applications of imaging and all-optical information. |
| first_indexed | 2024-04-09T22:59:40Z |
| format | Article |
| id | doaj.art-8e6e7202eb3044ba8492f7d1fb8558e4 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-09T22:59:40Z |
| publishDate | 2023-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-8e6e7202eb3044ba8492f7d1fb8558e42023-03-22T11:02:35ZengNature PortfolioScientific Reports2045-23222023-02-011311910.1038/s41598-023-29621-wWavefront shaping with nonlinear four-wave mixingDongyi Shen0Jianjun Cao1Wenjie Wan2State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong UniversitySchool of Science, Jiangnan UniversityState Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong UniversityAbstract Wavefront manipulations have enabled wide applications across many interdisciplinary fields ranging from optics and microwaves to acoustics. However, the realizations of such functional surfaces heavily rely on micro/nanofabrication to define the structured surfaces, which are fixed and only work within a limited spectrum. To address these issues, previous attempts combining tunable materials like liquid crystal or phase-change ones onto the metasurfaces have permitted extra tunability and working spectra, however, these additional layers bring in inevitable loss and complicate the fabrication. Here we demonstrate a fabrication-free tunable flat slab using a nonlinear four-wave mixing process. By wavefront-shaping the pump onto the flat slab, we can successfully tune the effective nonlinear refraction angle of the emitting FWM beams according to the phase-matching condition. In this manner, a focusing and a defocusing nonlinear of FWM beam through the flat slab have been demonstrated with a converging and a diverging pump wavefronts, respectively. Furthermore, a beam steering scheme over a 20° angle has been realized through a non-degenerate four-wave mixing process by introducing a second pump. These features open up a door to manipulating light propagation in an all-optical manner, paving the way to more functional and tunable flat slab devices in the applications of imaging and all-optical information.https://doi.org/10.1038/s41598-023-29621-w |
| spellingShingle | Dongyi Shen Jianjun Cao Wenjie Wan Wavefront shaping with nonlinear four-wave mixing Scientific Reports |
| title | Wavefront shaping with nonlinear four-wave mixing |
| title_full | Wavefront shaping with nonlinear four-wave mixing |
| title_fullStr | Wavefront shaping with nonlinear four-wave mixing |
| title_full_unstemmed | Wavefront shaping with nonlinear four-wave mixing |
| title_short | Wavefront shaping with nonlinear four-wave mixing |
| title_sort | wavefront shaping with nonlinear four wave mixing |
| url | https://doi.org/10.1038/s41598-023-29621-w |
| work_keys_str_mv | AT dongyishen wavefrontshapingwithnonlinearfourwavemixing AT jianjuncao wavefrontshapingwithnonlinearfourwavemixing AT wenjiewan wavefrontshapingwithnonlinearfourwavemixing |