Abstract
Within the framework of the theory of excitons with retardation included, the influence of acoustic oscillations on the spectral structure of the second harmonic in a molecular crystal is examined. It is shown that, in the weak exciton-phonon bond approximation, the harmonic line shape due to this influence is Lorentzian. The temperature dependence of the line width is studied, and some quantitative estimates are made.
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The author wishes to express his deep gratitude to L. N. Ovander for his supervision of this work and much valuable advice.
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Griban, V.N. On the spectral structure of the second harmonic. Soviet Physics Journal 10, 51–54 (1967). https://doi.org/10.1007/BF01649476
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DOI: https://doi.org/10.1007/BF01649476