Abstract
The flux of nonequilibrium phonons excited by light in the near-surface domain of a crystal or a thin plate is investigated. An exact expression is obtained for the phonon energy flux for a crystal with a polar direction and its polarization dependence is analyzed. The magnitude of the energy flux can reach the incident light intensity. The temperature difference produced by the flux of nonequilibrium photo-excited phonons is found.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 7, pp. 21–25, July, 1987.
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Blokh, M.D. Fluxes of nonequilibrium photo-excited phonons along surfaces of crystals without an inversion center. Soviet Physics Journal 30, 581–584 (1987). https://doi.org/10.1007/BF00895221
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DOI: https://doi.org/10.1007/BF00895221