| Visible frequency broadband dielectric metahologram by random Fourier phase-only encoding |
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| 作者姓名： | XuYue Guo Peng Li BingJie Li Sheng Liu BingYan Wei Wei Zhu JinZhan Zhong ShuXia Qi JianLin Zhao |
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| 作者单位： | MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions |
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| 基金项目： | supported by the National Natural Science Foundation of China(Grant Nos.11634010,91850118,11774289,61675168,and 11804277);the National Key Research and Development Program of China(Grant No.2017YFA0303800);the Fundamental Research Funds for the Central Universities(Grant Nos.3102018zy036,3102019JC008,and 310201911cx022)。 |
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| 摘 要： | In recent years,metasurfaces that enable the flexible wavefront modulation at sub-wavelength scale have been widely used into holographic display,due to its prominent advantages in polarization degrees of freedom,viewing angle,and achromaticity in comparison with traditional holographic devices.In holography,the computational complexity of hologram,imaging sharpness,energy utilization,reproduction rate,and system indirection are all determined by the encoding method.Here,we propose a visible frequency broadband dielectric metahologram based on the random Fourier phase-only encoding method.Using this simple and convenient method,we design and fabricate a transmission-type geometric phase all-dielectric metahologram,which can realize holographic display with high quality in the visible frequency range.This method encodes the amplitude information into the phase function only once,eliminating the cumbersome iterations,which greatly simplifies the calculation process,and may facilitate the preparation of large area nanoprint-holograms.
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| 关 键 词： | metahologram phase random encoding imaging |
One family of 13315 stable periodic orbits of non-hierarchical unequal-mass triple systems |
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| XuYue Guo,Peng Li,BingJie Li,Sheng Liu,BingYan Wei,Wei Zhu,JinZhan Zhong,ShuXia Qi,JianLin Zhao.Visible frequency broadband dielectric metahologram by random Fourier phase-only encoding[J].Science China Physics, Mechanics and Astronomy,2021,64(1):1-8. |
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| Authors: | Li XiaoMing Li XiaoChen Liao ShiJun |
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| Institution: | 1.MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an, 710129, China
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| Abstract: | In recent years, metasurfaces that enable the flexible wavefront modulation at sub-wavelength scale have been widely used into holographic display, due to its prominent advantages in polarization degrees of freedom, viewing angle, and achromaticity in comparison with traditional holographic devices. In holography, the computational complexity of hologram, imaging sharpness,energy utilization, reproduction rate, and system indirection are all determined by the encoding method. Here, we propose a visible frequency broadband dielectric metahologram based on the random Fourier phase-only encoding method. Using this simple and convenient method, we design and fabricate a transmission-type geometric phase all-dielectric metahologram, which can realize holographic display with high quality in the visible frequency range. This method encodes the amplitude information into the phase function only once, eliminating the cumbersome iterations, which greatly simplifies the calculation process, and may facilitate the preparation of large area nanoprint-holograms. |
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