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Proceedings Paper

Infrared grism spectrograph using a binary-optical grating
Author(s): David W. Warren; John A. Hackwell; Bryan J. Brames; W. Jim Skinner
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Paper Abstract

We describe a slitless spectrograph designed for use in the IR region between 2.6 and 5.2 micrometers . The dispersing element is a grism fabricated in silicon by binary-optical techniques. This approach permits the incorporation of aberration correction into the grating element. When combined with simple, all-silicon field and camera optics, the grism forms zero-order images and 3.5 mm- long dispersed spectra on a 256 by 256 element array of 38 micrometers InSb detectors. Interchangeable field lenses provide for 8:1, 6:1, and 4:1 reduction to a final focal ratio of f/2.5.

Paper Details

Date Published: 1 June 1994
PDF: 8 pages
Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); doi: 10.1117/12.176761
Show Author Affiliations
David W. Warren, The Aerospace Corp. (United States)
John A. Hackwell, The Aerospace Corp. (United States)
Bryan J. Brames, The Aerospace Corp. (United States)
W. Jim Skinner, The Aerospace Corp. (United States)

Published in SPIE Proceedings Vol. 2198:
Instrumentation in Astronomy VIII
David L. Crawford; Eric R. Craine, Editor(s)

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