New low-resolution broadband infrared spectrograph

John A. Hackwell; David W. Warren

doi:10.1117/12.60621

29 June 1992 A new low-resolution broad-band infrared spectrograph

John A. Hackwell, David W. Warren

Proceedings Volume 1745, Instrumentation for Planetary and Terrestrial Atmospheric Remote Sensing; (1992) https://doi.org/10.1117/12.60621
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

This paper describes a preliminary design for an imaging spectrograph that simultaneously covers the 2.15-5.2-micron spectral region with a resolution of 0.01 to 0.03 micron. Light entering the spectrograph through a slit is dispersed onto a 256 x 256 pixel InSb array by a novel spherical-faced prism/conic mirror combination. The use of a prism rather than a grating disperser allows more than a one-octave spectral interval to be covered with no moving parts. In addition, the prism optical efficiency remains high over the entire band covered. The simplicity and ruggedness of the design make it ideal for a space-borne instrument.

Citation Download Citation

John A. Hackwell and David W. Warren "A new low-resolution broad-band infrared spectrograph", Proc. SPIE 1745, Instrumentation for Planetary and Terrestrial Atmospheric Remote Sensing, (29 June 1992); https://doi.org/10.1117/12.60621

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