Chinese Optics Letters, 2019, 17 (1): 011101, Published Online: Jan. 17, 2019
Snapshot imaging spectrometer based on a microlens array Download: 817次
110.4234 Multispectral and hyperspectral imaging 120.4640 Optical instruments 300.6190 Spectrometers
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 μ m × 125 μ m , 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.