Research progress of spectrometers based on metalenses

Yachen Ke; Chunyu Zhang; Juanjuan Jing; Jinsong Zhou; Lidong Wei; Lei Feng

doi:10.1117/12.2646393

20 January 2023 Research progress of spectrometers based on metalenses

Yachen Ke, Chunyu Zhang, Juanjuan Jing, Jinsong Zhou, Lidong Wei, Lei Feng

Author Affiliations +

Proceedings Volume 12558, AOPC 2022: Optical Spectroscopy and Imaging; 1255805 (2023) https://doi.org/10.1117/12.2646393
Event: Applied Optics and Photonics China 2022 (AOPC2022), 2022, Beijing, China

Abstract

A spectrometer is a type of apparatus that measures the intensity of spectra at different wavelengths utilizing dispersive components and detectors. In recent years, with the increase of application scenarios and demands in scientific research and industrial fields, researchers have make efforts in the miniaturization of spectrometers and there have been many new developments. Among them, the application of metalenses in spectrometers has made great progress. As a kind of two-dimensional subwavelength microstructure, metalens can flexibly control the phase, amplitude and polarization of electromagnetic wave. On account of its small size, light weight and planar characteristics, researches have been conducted to replace conventional optical components with metalens. In this paper, we introduce the design principle of metalenses, and summerize different kinds of miniaturized spectrometers using metalenses, focusing on the dispersion mechanism, optical characteristics and performance of efficiency of these spectrometer system. These applications of metalenses to spectrometers take advantage of their refraction, differaction and polarization characteristics and can be beneficial to exploit other complex functions. We discuss current challenges, potential application fields and promising future developments of metalens design for spectral analysis.

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Yachen Ke, Chunyu Zhang, Juanjuan Jing, Jinsong Zhou, Lidong Wei, and Lei Feng "Research progress of spectrometers based on metalenses", Proc. SPIE 12558, AOPC 2022: Optical Spectroscopy and Imaging, 1255805 (20 January 2023); https://doi.org/10.1117/12.2646393

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