Paper
1 June 1994 Infrared grism spectrograph using a binary-optical grating
David W. Warren, John A. Hackwell, Bryan J. Brames, W. Jim Skinner
Author Affiliations +
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.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David W. Warren, John A. Hackwell, Bryan J. Brames, and W. Jim Skinner "Infrared grism spectrograph using a binary-optical grating", Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); https://doi.org/10.1117/12.176761
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KEYWORDS
Cameras

Spectrographs

Diffraction

Infrared radiation

Sensors

Diffraction gratings

Silicon

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