The complete set of elastic and photoelastic constants of 3-methyl 4-nitropyridine 1-oxide (POM) organic single crystals is measured by Brillouin scattering. The acousto-optic figures of merit are then derived and the anisotropy of the longitudinal and transverse acoustic wave velocity clearly evidenced from the knowledge of these constants. POM appears to be a promising material for acousto-optical devices as light deflectors and modulators. It is shown that a Bragg cell using POM as an interaction medium would combine several favorable technical features.
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Sapriel et al. (1989) studied this question.
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