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Proceedings Paper

Analysis on the optical aberration effect on spectral resolution of coded aperture spectroscopy
Author(s): Peng Hao; Mingbo Chi; Yihui Wu
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Paper Abstract

The coded aperture spectrometer can achieve high throughput and high spectral resolution by replacing the traditional single slit with two-dimensional array slits manufactured by MEMS technology. However, the sampling accuracy of coding spectrum image will be distorted due to the existence of system aberrations, machining error, fixing errors and so on, resulting in the declined spectral resolution. The influence factor of the spectral resolution come from the decode error, the spectral resolution of each column, and the column spectrum offset correction. For the Czerny-Turner spectrometer, the spectral resolution of each column most depend on the astigmatism, in this coded aperture spectroscopy, the uncorrected astigmatism does result in degraded performance. Some methods must be used to reduce or remove the limiting astigmatism. The curvature of field and the spectral curvature can be result in the spectrum revision errors.

Paper Details

Date Published: 24 October 2017
PDF: 4 pages
Proc. SPIE 10461, AOPC 2017: Optical Spectroscopy and Imaging, 104610B (24 October 2017); doi: 10.1117/12.2282038
Show Author Affiliations
Peng Hao, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Mingbo Chi, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Yihui Wu, Changchun Institute of Optics, Fine Mechanics and Physics (China)


Published in SPIE Proceedings Vol. 10461:
AOPC 2017: Optical Spectroscopy and Imaging
Jin Yu; Zhe Wang; Wei Hang; Bing Zhao; Xiandeng Hou; Mengxia Xie; Tsutomu Shimura, Editor(s)

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