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Proceedings Paper

Resolution modeling of dispersive imaging spectrometers
Author(s): John F. Silny
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Paper Abstract

This paper presents best practices for modeling the resolution of dispersive imaging spectrometers. The differences between sampling, width, and resolution are discussed. It is proposed that the spectral imaging community adopt a standard definition for resolution as the full-width at half maximum (FHWM) of the total line spread function (LSF). Resolution should be computed for each of the spectral, cross-scan spatial, and along-scan spatial/temporal dimensions separately. A physical optics resolution model is presented that incorporates the effects of slit diffraction and partial coherence, the result of which is a narrower slit image width and reduced throughput.

Paper Details

Date Published: 19 September 2016
PDF: 15 pages
Proc. SPIE 9976, Imaging Spectrometry XXI, 99760A (19 September 2016); doi: 10.1117/12.2239872
Show Author Affiliations
John F. Silny, Raytheon Co., Space and Airborne Systems (United States)

Published in SPIE Proceedings Vol. 9976:
Imaging Spectrometry XXI
John F. Silny; Emmett J. Ientilucci, Editor(s)

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