Computer Science – Sound
Scientific paper
Aug 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ijimw..14.1619p&link_type=abstract
International Journal of Infrared and Millimeter Waves (ISSN 0195-9271), vol. 14, no. 8, p. 1619-1625.
Computer Science
Sound
Acoustic Attenuation, Deflectors, Electro-Optics, Electroacoustics, Image Resolution, Astronomy, High Frequencies, Sound Transmission
Scientific paper
The two main constraints on the characteristics of the acousto-optic deflector are acoustic sound attenuation and velocity. These two parameters will determine the resolution and the radio frequency bandwidth. Due to a double degenerated phase matching condition on a specific acousto-optic deflector configuration, the possibility of an improvement on the resolution of the acousto-optic deflector becomes evident. This degeneration is the result of the action of a dc electric field by the electro-optic effect. This configuration presents several advantages upon the early related works based on the optical activity of selected materials and enables a wideband interaction in such a way that the number of resolvable channels is kept high. This has implications on the acousto-optic spectrometers for wideband radio astronomy research.
Beraldo Nori
Pacheco Gefeson M.
Scalise Eugenio Jr.
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