Chinese Optics Letters, 2019, 17 (1): 011101, Published Online: Jan. 17, 2019   

Snapshot imaging spectrometer based on a microlens array Download: 817次

Author Affiliations
1 School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
2 University of Chinese Academy of Sciences, Beijing 100853, China
3 Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
Abstract
This Letter proposes a snapshot imaging spectrometer, which obtains the spectral information and spatial information in one “shot”. The device proposed can achieve the data cube size of 21×29×40 in the waveband of 400–800 nm. The core element of this system is the microlens array, which contains 60×60 microlenses in a square arrangement, each microlens has an aperture of 125 μm×125 μm, and the F number is 15. The microlens array is mounted in a rotation mount, which provides 360° of rotation around the optical axis to maximize the spectral resolution. The final resolution of the system is about 10 nm.

Zexia Zhang, Jun Chang, Hongxi Ren, Kaiyuan Fan, Dongmei Li. Snapshot imaging spectrometer based on a microlens array[J]. Chinese Optics Letters, 2019, 17(1): 011101.

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