Metasurface-enabled polarization-independent LCoS spatial light modulator for 4K resolution and beyond

Zhaoxiang Zhu; Yuanhui Wen; Jiaqi Li; Yujie Chen; Zenghui Peng; Jianxiong Li; Lei Zhu; Yunfei Wu; Lidan Zhou; Lin Liu; Liangjia Zong; Siyuan Yu

doi:10.1038/s41377-023-01202-6

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Metasurface-enabled polarization-independent LCoS spatial light modulator for 4K resolution and beyond

Original Articles

- Metasurface-enabled polarization-independent LCoS spatial light modulator for 4K resolution and beyond
- Light: Science & Applications Vol. 12, Issue 7, Pages: 1391-1400(2023)
- Affiliations：
  
  1.State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, China
  2.Huawei Technologies Co., Ltd., Bantian, Longgang District, Shenzhen 518129, China
  3.State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
- Author bio：
  
  Yujie Chen (chenyj69@mail.sysu.edu.cn)
  Liangjia Zong (zongliangjia@huawei.com)
- Funds：
- DOI：10.1038/s41377-023-01202-6
  CLC：
- Published：31 July 2023，
  
  Published Online：19 June 2023，
  
  Received：04 February 2023，
  
  Revised：17 May 2023，
  
  Accepted：03 June 2023
- Accepted：
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Zhu, Z. X. et al. Metasurface-enabled polarization-independent LCoS spatial light modulator for 4K resolution and beyond. Light: Science & Applications, 12, 1391-1400 (2023).
DOI：

Zhu, Z. X. et al. Metasurface-enabled polarization-independent LCoS spatial light modulator for 4K resolution and beyond. Light: Science & Applications, 12, 1391-1400 (2023). DOI： 10.1038/s41377-023-01202-6.

摘要

Abstract

With the distinct advantages of high resolution

small pixel size

and multi-level pure phase modulation

liquid crystal on silicon (LCoS) devices afford precise and reconfigurable spatial light modulation that enables versatile applications ranging from micro-displays to optical communications. However

LCoS devices suffer from a long-standing problem of polarization-dependent response in that they only perform phase modulation on one linear polarization of light

and polarization-independent phase modulation—essential for most applications—have had to use complicated polarization-diversity optics. We propose and demonstrate

for the first time

an LCoS device that directly achieves high-performance polarization-independent phase modulation at telecommunication wavelengths with 4K resolution and beyond by embedding a polarization-rotating metasurface between the LCoS backplane and the liquid crystal phase-modulating layer. We verify the device with a number of typical polarization-independent application functions including beam steering

holographical display

and in a key optical switching element - wavelength selective switch (WSS)

demonstrating the significant benefits in terms of both configuration simplification and performance improvement.

关键词

Keywords

references

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