| Autor: |
NIEH, S. T. K., HARRIS, S. E. |
| Zdroj: |
Journal of the Optical Society of America (1917-1983); May 1972, Vol. 62 Issue: 5 p672-676, 5p |
| Abstrakt: |
A theoretical and experimental study of the aperture-bandwidth characteristics of the electronically tunable acousto-optic filter shows that (a) optical divergence in the ordinary plane of the acousto-optic crystal results in a broadening of the filter frequency-transmission characteristic toward longer wavelengths; (b) optical divergence in the extraordinary plane results in a broadening toward shorter wavelengths; (c) divergence of the acoustic beam has the same effect as optical ordinary divergence, and generally will not be of consequence; and (d) roughly, the resolution times the solid-angle acceptance of the acousto-optic filter is approximately the same as that of a solid Fabry-Perot interferometer made of the same material. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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