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Proceedings Paper

Hadamard-Coded, Stationary-Entrance-Mask, Photodiode-Array Spectrometer
Author(s): Roger A. Van Tassel; Wallace K. Wong
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Paper Abstract

A Hadamard transform spectrometer has been designed which uses a stationary Hadamard mask at the entrance plane of a holographic grating, photodiode array spectrometer. The mask contains 2N-1 slots where N is the number of resolution elements in the photodiode array. The instrument uses no moving parts and has the ability to capture the spectrum of a randomly occurring pulse source with significantly higher signal-to-noise ratio than a single-slit array spectrometer. It utilizes all-reflective optics and is a generic design suitable for use in the ultraviolet, visible and infrared when equipped with a detector array which is sensitive in the region of interest.

Paper Details

Date Published: 1 December 1989
PDF: 7 pages
Proc. SPIE 1145, 7th Intl Conf on Fourier Transform Spectroscopy, (1 December 1989); doi: 10.1117/12.969515
Show Author Affiliations
Roger A. Van Tassel, Geophysics Laboratory (United States)
Wallace K. Wong, SSG, Inc (United States)

Published in SPIE Proceedings Vol. 1145:
7th Intl Conf on Fourier Transform Spectroscopy
David G. Cameron, Editor(s)

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