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Proceedings Paper

Acousto-Optic Filters In Astronomical Spectrophotometry
Author(s): B. Bates; D. Findlay; D. Halliwell
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Paper Abstract

Acousto-optic filters possess some attractive properties for applications to astronomical spectrophotometry. Tuning over a wide spectral range is achieved by variation of the frequency of an acoustic wave propagated through the crystal which causes diffraction of the incident collimated light in a narrow range of wavelengths. Spectral scanning either continuously through the spectrum or by switching to a programmed set of wavelengths can be accomplished easily and rapidly since there are no moving parts. Spectral performance characteristics of a commercially available filter are given and an outline is presented of a prototype astronomical spectrometer which is controlled by a microcomputer.

Paper Details

Date Published: 16 June 1983
PDF: 5 pages
Proc. SPIE 0369, Max Born Centenary Conf, (16 June 1983); doi: 10.1117/12.934385
Show Author Affiliations
B. Bates, Queen's University of Belfast (Northern Ireland)
D. Findlay, Queen's University of Belfast (Northern Ireland)
D. Halliwell, Queen's University of Belfast (Northern Ireland)


Published in SPIE Proceedings Vol. 0369:
Max Born Centenary Conf
M. John Colles; D. William Swift, Editor(s)

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