2026-10-14T07:19:43Z https://www.scidb.cn/oai

10.57760/sciencedb.06788 2022-12-02T09:14:13Z

2022-12-02 High efficiency all-dielectric pixelated metasurface for near-infrared full-Stokes polarization detection doi:10.57760/sciencedb.06788 en Pixelated metasurfaces integrating both the functions of linear polarization and circular polarization filters on a single platform can achieve full-Stokes polarization detection. At present, the pixelated full-Stokes metasurfaces mainly face the following problems: low transmission, low circular dichroism (CD) of circular polarization filters, and high requirements in fabrication and integration. Herein, we propose high performance ultracompact alldielectric pixelated full-Stokes metasurfaces in the near-infrared band based on silicon-on-insulator, which is compatible with the available semiconductor industry technologies. Circular polarization filters with high CD are achieved by using simple two-dimensional chiral structures, which can be easily integrated with the linear polarization filters on a single chip. In addition, the dielectric materials have higher transmission than metal materials with intrinsic absorption. We experimentally demonstrated the circular polarization filter with maximum CD up to 70% at a wavelength of 1.6 μm and average transmission efficiency above 80% from 1.48 μm to 1.6 μm. Therefore, our design is highly desirable for many applications, such as target detection, clinical diagnosis, and polarimetric imaging and sensing. metasurface; full-Stokes polarization; polarization detection Chong Zhang Jingpei Hu Yangeng Dong Aijun Zeng Huijie Huang Chinhua Wang PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset http://www.doi.org/10.1364/PRJ.415342 Science Data Bank