Noncollinear acousto-optic tunable filter: thallium phosphorus        selenide system

Milton S. Gottlieb; N. B. Singh; Richard H. Hopkins; Robert Mazelsky

doi:10.1117/12.176513

1 August 1994 Noncollinear acousto-optic tunable filter: thallium phosphorus selenide system

Milton S. Gottlieb, N. B. Singh, Richard H. Hopkins, Robert Mazelsky

Author Affiliations +

Optical Engineering, Vol. 33, Issue 8, (August 1994). https://doi.org/10.1117/12.176513

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.

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Milton S. Gottlieb, N. B. Singh, Richard H. Hopkins, and Robert Mazelsky "Noncollinear acousto-optic tunable filter: thallium phosphorus selenide system," Optical Engineering 33(8), (1 August 1994). https://doi.org/10.1117/12.176513

Published: 1 August 1994

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