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Optical Engineering

Noncollinear acousto-optic tunable filter: thallium phosphorus selenide system
Author(s): Milton S. Gottlieb; N. B. Singh; Richard H. Hopkins; Robert Mazelsky
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Paper Abstract

Single crystals of thallium phosphorous selenide Tl3PSe4, were grown from the melt by the Bridgman method. The crystal quality was evaluated by optical and metallographic techniques. The crystals transmit radiation between 0.7 and 14 μm. Etchpit studies show that the crystals are free from inclusions and lamellar twins and exhibit a uniform cross-sectional etchpit density. Thallium phosphorous selenide crystals are biaxial and belong to the orthorhombic crystal class. A detailed design for the noncollinear acousto-optic tunable filter that uses Tl3PSe4 crystal is presented. Design of filters from this class of crystals facilitates control of the angular aperture, an important device parameter.

Paper Details

Date Published: 1 August 1994
PDF: 6 pages
Opt. Eng. 33(8) doi: 10.1117/12.176513
Published in: Optical Engineering Volume 33, Issue 8
Show Author Affiliations
Milton S. Gottlieb, Westinghouse Electric Corp. (United States)
N. B. Singh, Westinghouse Electric Corp. (United States)
Richard H. Hopkins, Westinghouse Electric Corp. (United States)
Robert Mazelsky, Westinghouse Electric Corp. (United States)

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