A liquid crystal based non-Hermitian metasurface for broadband full-Stokes polarization detection.
Nanotechnology
; 35(47)2024 Sep 05.
Article
in En
| MEDLINE
| ID: mdl-39191266
ABSTRACT
The ability to detect the polarization information of light is often crucial for various applications in optical systems. However, conventional polarization-sensitive photodetectors struggle to simultaneously achieve a wide band coverage and high-precision detection, severely hindering the development of polarization detectors. In this study, a reflective metasurface with full-Stokes detection capabilities over a wide range is proposed. It integrates four linear polarization filters and two circular polarization filters operating in the near-infrared region. By dynamically adjusting the refractive index of the liquid crystal covering the detector surface, high performance full-Stokes parameter detection can be achieved between 730-770 nm with detection error below 0.07. Therefore, this study provides a design approach for the potential application of Stokes polarization detection over a broadband spectrum.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Nanotechnology
/
Nanotechnology (Bristol, Online)
/
Nanotechnology (Bristol. Online)
Year:
2024
Document type:
Article
Country of publication:
United kingdom