Hadamard-Coded, Stationary-Entrance-Mask, Photodiode-Array Spectrometer

Roger A. Van Tassel; Wallace K. Wong

doi:10.1117/12.969515

1 December 1989 Hadamard-Coded, Stationary-Entrance-Mask, Photodiode-Array Spectrometer

Roger A. Van Tassel, Wallace K. Wong

Proceedings Volume 1145, 7th Intl Conf on Fourier Transform Spectroscopy; (1989) https://doi.org/10.1117/12.969515
Event: Seventh International Conference on Fourier and Computerized Infrared Spectroscopy, 1989, Fairfax, VA, United States

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.

Citation Download Citation

Roger A. Van Tassel and Wallace K. Wong "Hadamard-Coded, Stationary-Entrance-Mask, Photodiode-Array Spectrometer", Proc. SPIE 1145, 7th Intl Conf on Fourier Transform Spectroscopy, (1 December 1989); https://doi.org/10.1117/12.969515

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