Analytical design of a high-performing +1st order diffraction convex grating imaging spectrometer.
Appl Opt
; 59(12): 3760-3765, 2020 Apr 20.
Article
em En
| MEDLINE
| ID: mdl-32400503
ABSTRACT
A novel concentric spectrometer having one convex grating and one concave mirror, working at ${+}{1}$+1st order diffraction, and with a small size, high resolution, and high diffraction efficiency, is proposed. It can simultaneously achieve high resolution and compactness by increasing the grating groove density. A compact spectrometer operating at a wavelength of 740-790 nm with an excellent imaging quality is designed. Its spectral resolution reaches 0.049 nm, and its diffraction efficiency improves by 27% compared to the conventional Offner spectrometer with convex grating working at ${-}{1}$-1st order diffraction. This is suitable for small, light, and low-cost atmospheric gas monitoring satellites.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Appl Opt
Ano de publicação:
2020
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Article