A dynamical theory for inelastic Bragg scattering of electromagnetic waves from coupled systems of acoustic lattice waves and free-carrier density waves in opaque semiconducting crystals is formulated. On basis of aquasistatic two-wave interference approximation it is predicted that sound-induced anomalous transmission oflight below the plasma edge can be obtained if the radiation is incident at the Bragg angle appropriate fordynamical diffraction. This anomalous transmission is to some extent analogous to the Borrmann effect for xrays in perfect crystals.
© 1978 Optical Society of America
Ole Keller, "Sound-induced anomalous transmission of light through semiconducting crystals below the plasma edge," J. Opt. Soc. Am. 68, 42-47 (1978)