Acousto-optic filter

Details Acousto-optic filter Acousto-optic filter

1974-08-27

1976-03-16

McGraw, Vincent P.

350149, G02F 134

Patent

active

039443345

ABSTRACT:
An acousto-optic filter utilizing the far-off-axis anisotropic Bragg diffraction comprising an optically anisotropic acousto-optic medium embodied by paratellurite. The light entrance surface is slanted to the crystalline axis to make a light beam incident perpendicularly to the surface. The light exit surface is slanted to the direction of the entrance surface to minimize the dispersion of diffracted angle due to light wave length.

REFERENCES:
"Acousto-Optic Light Deflectors Using Optical Activity in Paratellurite," by Warner et al., J. Appl. Phys., V. 43 No. 11, Nov. 1972.
"New Noncollinear Acousto-Optic Tunable Filter Using Birefringence in Paratellurite," by Yano, et al., Appl. Phys. Ltrs. Vol. 24 No. 6, Mar. 1974.

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