Multiple-Phonon Resonant Raman Scattering in CdS
Multiple-Phonon Resonant Raman Scattering in CdS
复制标题
DOI：
10.1103/physrevlett.22.780
复制
发表时间：
1969-04
影响因子：
8.6
通讯作者：
R. Leite;J. Scott;T. Damen
中科院分区：
文献类型：
--
作者：
R. Leite;J. Scott;T. Damen
在激光频率与带隙或激子态共振的条件下，观察到CdS的n阶（n= 1，2，1，9）拉曼散射。这些高阶过程的频谱表明，所涉及的声子被局域在以Γ为中心的小体积k空间内。我们认为，这样的光谱特征的直接间隙共振散射的特点，并讨论其生产的运动学。
We have observed nth order (n= 1, 2,⋯, 9) Raman scattering in CdS under conditions of resonance between the laser frequency and the band gap or the associated exciton states. The frequency spectrum of these higher order processes demonstrates that the phonons involved are localized within a small volume of k space centered at Γ. We believe that such spectral features are characteristic of direct-gap resonant scattering, and the kinematics of their production is discussed.