微腔中极化激元介导的喇曼散射理论
Theory of polariton mediated Raman scattering in microcavities
摘要：
计算了半导体微腔中极化激元介导的非弹性光散射的强度。我们对待激子-光子耦合非微扰，并纳入激子和光子的寿命效应，和耦合的光子的电子-空穴连续。以矩阵元为拟合参数，计算结果与实验测量的喇曼强度吻合得很好，这是由于光学声子与嵌入CdTe量子阱的II-VI族微腔中的上极化激元分支共振所致.
英文摘要：
We calculate the intensity of the polariton mediated inelastic light scattering in semiconductor microcavities. We treat the exciton-photon coupling nonperturbatively and incorporate lifetime effects in both excitons and photons, and a coupling of the photons to the electron-hole continuum. Taking the matrix elements as fitting parameters, the results are in excellent agreement with measured Raman intensities due to optical phonons resonant with the upper polariton branches in II-VI microcavities with embedded CdTe quantum wells.
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