Acoustically tuned optical filter system

Details Acoustically tuned optical filter system Acoustically tuned optical filter system

1982-11-05

1985-04-30

Punter, William H.

350404, G02F 111

Patent

active

045140561

ABSTRACT:
Two crystals, made of acousto-optical material and having their respective extraordinary axes at a predetermined angle to each other, are acoustically excited; and, in combination with a polarizer and an analyzer, the acoustically excited crystals permit the complete transmission or rejection of a preselected narrow band of polarized light in the visible/infrared wavelength region.

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Pinnow et al., "An Electro-Optic Tunable Filter", App. Physics. Lett., 3-15-79, pp. 391-393.

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