Reconstructing Polarization Multiplexing Terahertz Holographic Images with Transmissive Metasurface
Source abstract
Abstract
There is a growing trend towards the development of high resolution and multiplexing metasurface holograms. In this paper, we propose the reconstruction of polarization multiplexing terahertz (THz) holographic images based on transmissive metasurface. The metasurface composed of all-dielectric meta-atoms is designed as a multi-foci metalens and the focal points of the metalens are utilized as the pixels of a reconstructed image. We analyze the effects of focal length and phase pixel number of the metalens on focal point to achieve high-resolution holographic images. In addition, by switching the polarization of incident lights, holographic images with different patterns are reconstructed on its focal plane. Such high-resolution and polarization multiplexing metasurface holograms is promising for applications in THz communications, information engineering, and encryption.
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Research context
OpenAlex topics: Metamaterials and Metasurfaces Applications · Antenna Design and Analysis · Advanced Antenna and Metasurface Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Physics, Harbin Institute of Technology, Harbin 150001, China
Department of Optoelectronics Science, Harbin Institute of Technology, Weihai 264209, China
Department of Mathematics and Physics, North China Electric Power University, Baoding 071003, China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Shandong Province
References (45)
Show source-provided references
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