1 June 2011 Study on spectral broadband aberration-corrected imaging spectrometer for far-ultraviolet waveband
Yu Lei, Shurong Wang, Guanyu Lin
Author Affiliations +
Funded by: National Natural Science Foundation of China (NSFC)
Abstract
In order for the Czerny-Turner spectrometer to be utilized in the imaging spectrometer for far-ultraviolet waveband, we describe the elimination of the principal aberration coma and astigmatism for the arrangement by light-path function analysis. The modified structure is built by a spherical mirror, a toroidal mirror, and a fixed plane grating. Starting with coma and astigmatism corrected by adjusting the incident angle to the collimating mirror and using a toroidal mirror, we obtain the optimized distances between the grating to the focusing mirror and the focusing mirror to the image plane by geometric analysis and first order differential calculation, in order to acquire high imaging quality in broad waveband. The design result shows a simple optical imaging structure that can be used in the ionosphere detection (120 to 180 nm) that is superior and convenient.
©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)
Yu Lei, Shurong Wang, and Guanyu Lin "Study on spectral broadband aberration-corrected imaging spectrometer for far-ultraviolet waveband," Optical Engineering 50(6), 063002 (1 June 2011). https://doi.org/10.1117/1.3591947
Published: 1 June 2011
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CITATIONS
Cited by 7 scholarly publications.
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KEYWORDS
Mirrors

Spectroscopy

Monochromatic aberrations

Imaging systems

Image quality

Diffraction gratings

Off axis mirrors

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