Flexible Full-Stokes Polarization Engineering by Disorder-Scrambled Metasurfaces

Fuente: arXiv
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Autores principales: Cheng, Zhi, Zhou, Zhou, Wang, Zhuo, Wang, Yue, Yu, Changyuan
Formato: Preprint
Publicado: 2025
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author Cheng, Zhi
Zhou, Zhou
Wang, Zhuo
Wang, Yue
Yu, Changyuan
author_facet Cheng, Zhi
Zhou, Zhou
Wang, Zhuo
Wang, Yue
Yu, Changyuan
contents Abstract: The ability to arbitrarily and flexibly control the polarization of light, including both the state of polarization (SoP) and the degree of polarization (DoP), is highly important for quantum optics, polarization imaging, and coherent optical communications. Although metasurfaces have shown promise in polarization control, the few studies focusing on the DoP often lack flexibility in manipulation. Here, we propose a novel approach using a disordered metasurface to flexibly convert natural light into partially polarized light, enabling independent and flexible control over all Stokes parameters. The metasurface is composed of two types of meta-atoms, uniformly distributed with specific quantity ratios, decoupling the design parameters in the process of polarization control, and allowing a one-to-one correspondence between metasurface and polarization spaces. The azimuthal and elevation angles of the SoP on the Poincaré sphere are independently controlled by the meta-atom rotation and size, while the DoP is governed by the quantity ratio. A developed algorithm determines the disordered metasurface arrangement, with theoretical calculations showing an average error of less than 3° for both the azimuthal and elevation angles and a control accuracy of \pm 0.05 for the DoP.
format Preprint
id arxiv_https___arxiv_org_abs_2501_05766
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Flexible Full-Stokes Polarization Engineering by Disorder-Scrambled Metasurfaces
Cheng, Zhi
Zhou, Zhou
Wang, Zhuo
Wang, Yue
Yu, Changyuan
Optics
Abstract: The ability to arbitrarily and flexibly control the polarization of light, including both the state of polarization (SoP) and the degree of polarization (DoP), is highly important for quantum optics, polarization imaging, and coherent optical communications. Although metasurfaces have shown promise in polarization control, the few studies focusing on the DoP often lack flexibility in manipulation. Here, we propose a novel approach using a disordered metasurface to flexibly convert natural light into partially polarized light, enabling independent and flexible control over all Stokes parameters. The metasurface is composed of two types of meta-atoms, uniformly distributed with specific quantity ratios, decoupling the design parameters in the process of polarization control, and allowing a one-to-one correspondence between metasurface and polarization spaces. The azimuthal and elevation angles of the SoP on the Poincaré sphere are independently controlled by the meta-atom rotation and size, while the DoP is governed by the quantity ratio. A developed algorithm determines the disordered metasurface arrangement, with theoretical calculations showing an average error of less than 3° for both the azimuthal and elevation angles and a control accuracy of \pm 0.05 for the DoP.
title Flexible Full-Stokes Polarization Engineering by Disorder-Scrambled Metasurfaces
topic Optics
url https://arxiv.org/abs/2501.05766