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在(CdSe)1(ZnSe)3/ZnSe短周期超晶格多量子阱中,根据一维线性链模型计算的结果与实验结果的比较表明,我们在不同的共振条件下分别观察到了来自多量子阱的阱中和垒中ZnSe限制纵光学声子模的Raman散射。与GaAs/AlAs量子阱的偏振选择定则不同,在共振条件下,我们在两种偏振配置下都观察到了阱中ZnSe限制模LO1,并认为这种不同可能来源于样品特殊的电子子带结构和光学声子行为。In (CdSe)1(ZnSe)3/ZnSe short-period superlattice multiple quantum wells, we observed the Raman scattering from ZnSe confined longitudinal optical phonon modes in both the barriers and wells of quantum wells under different resonant conditions. From comparison between theoretical analysis with linear chain model and experimental results, the observed ZnSe confined longitudinal optical phonon mode in the both configuration are shown to be LO1 This differs from the observations in GaAs/AlAs quantum wells and we tentatively attribute the disagreement to the different subband structures in our sample.
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