Raman scattering from plasma excitations in a conducting double layer
作者： Giuseppe E. Santoro , Gabriele F. Giuliani
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摘要: We have investigated the Raman-scattering amplitude from processes in which radiation field excites longitudinal collective modes a system comprised of two parallel quasi-two-dimensional conducting electronic layers embedded dielectric medium. Within random-phase approximation we derived explicit formulas for density response and Raman intensity as function exchanged frequency. The spectrum consists resonance peaks corresponding to optical- acoustic-plasmon branches are peculiar this system. Both position width resonances been studied shown depend on elastic lifetime.
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