Abstract
The improvement in the optical quality of mercurous halide crystals is described. Optical quality was evaluated by studying optical distortion, birefringence interferograms, and laser scattering characteristics; the parameters which are crucial for practical devices. Mercurous chloride and mercurous bromide crystals showed acoustic attenuation constants of 8 and 11.8 dB μ s −1 GHz −2 for cm size crystals. The acoustic attenuation of mercurous iodide was very large and varied significantly because of inhomo-geneities in the matrices of cm size crystals.
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