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Optical Engineering

High-performance acousto-optic materials: Hg2Cl2 and PbBr2
Author(s): Milton S. Gottlieb; Anastasios P. Goutzoulis; N. B. Singh
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Paper Abstract

New results achieved with recently grown Hg2Cl2 and PbBr2 crystals are described. With an optimized crystal growth technique Hg2Cl2 crystals were grown that show a significantly reduced acoustic attenuation compared to prior crystals, from 13.4 to 8 dB/μs-GHz2. These crystals allow the development of Hg2Cl2 Bragg cells with time-bandwidth product figures in the 5100 to 6900 range, frequency operation as high as that for Te02, and resolution about 25% higher than TeO2 for similar crystal lengths. PbBr2 crystals were also grown that exhibit a large figure of merit (M2 550) with an attenuation coefficient of 12 dB/μs-GHz2. This material may be the choice for infrared devices where large diffraction efficiencies are needed.

Paper Details

Date Published: 1 October 1992
PDF: 8 pages
Opt. Eng. 31(10) doi: 10.1117/12.58879
Published in: Optical Engineering Volume 31, Issue 10
Show Author Affiliations
Milton S. Gottlieb, Westinghouse Electric Corp. (United States)
Anastasios P. Goutzoulis, Westinghouse Electric Corp. (United States)
N. B. Singh, Westinghouse Electric Corp. (United States)


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