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STIMULATED BRILLOUIN SCATTERING IN DIFFUSIVE SEMICONDUCTOR PLASMAS

机译:扩散半导体等离子体中的激发布里渊散射

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摘要

In crystalline solids, there always exist thermally excited acoustic vibrations which can scatter incident light of any arbitrary intensity and gives rise to spontaneous Brillouin scattering. However, if there are many photons in the radiation field it can properly be described by classical waves. In the treatment of coupled wave problems, the classical description is even more appropriate, since then the decay or amplification of the waves depends on the relative phase among them, whereas in the quantum description, if the number of quanta is prescribed, the phases will be undetermined, as required by the uncertainty principle.
机译:在结晶固体中,总是存在热激发的声振动,该声振动会散射任意强度的入射光,并引起自发的布里渊散射。但是,如果辐射场中有许多光子,则可以用经典波恰当地描述它。在耦合波问题的处理中,经典描述更为合适,因为这时波的衰减或放大取决于它们之间的相对相位,而在量子描述中,如果规定了量子数量,则相位将不确定性原则要求不确定。

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