首页|Active metasurface via magnetic control for tri-channel polarization multiplexing holography

Active metasurface via magnetic control for tri-channel polarization multiplexing holography

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Active metasurfaces have recently attracted more attention since they can make the light manipulation be versatile and real-time.Metasurfaces-based holography possesses the advantages of high spatial resolution and enormous information capacity for applications in optical displays and encryption.In this work,a tunable polarization multiplexing holographic metasurface controlled by an external magnetic field is proposed.The elaborately designed nanoantennas are arranged on the magneto-optical intermediate layer,which is placed on the metallic reflecting layer.Since the non-diagonal elements of the dielectric tensor of the magneto-optical material become non-zero values once the external magnetic field is applied,the differential absorption for the left and right circularly polarized light can be generated.Meanwhile,the amplitude and phase can be flexibly modulated by changing the sizes of the nanoantennas.Based on this,the dynamic multichannel holo-graphic display of metasurface in the linear and circular polarization channels is realized via magnetic control,and it can provide enhanced security for optical information storage.This work paves the way for the realization of magnetically controllable phase modulation,which is promising in dynamic wavefront control and optical information encryption.

active metasurfacemagneto-optical effectpolarization multiplexing holographydynamic holographic display

毕钰、黄玲玲、李拓、王长红、邹晓峰、周朗、康果果

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Shandong Inspur Artificial Intelligence Research Institute Company Limited,Jinan 250013,China

MIIT Key Laboratory of Photonics Information Technology,School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China

National Key R&D Program of ChinaNational Key R&D Program of ChinaNatural Science Foundation of Shandong ProvinceBeijing Outstanding Young Scientist ProgramNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFok Ying-Tong Education Foundation of ChinaBeijing Municipal Science & Technology Commission,Administrative Commission of Zhongguancun Science Park

2021YFB28018032021YFA1401200ZR2023LZH001BJJWZYJH01201910007022U21A2014092050117161009Z211100004821009

2024

10.3788/COL202422.043601

中国光学快报(英文版)
中国光学学会 中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD
影响因子：1.305
ISSN：1671-7694
年,卷(期)：2024.22(4)