Quantum theory of coherent Raman scattering by optically active isotropic materials
Quantum theory of coherent Raman scattering by optically active isotropic materials
复制标题
光学活性各向同性材料相干拉曼散射的量子理论
DOI：
10.1063/1.439642
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发表时间：
1980
影响因子：
4.4
通讯作者：
B. Hudson
中科院分区：
文献类型：
--
作者：
J. Bjarnason;H. C. Andersen;B. Hudson
相干拉曼散射的全量子力学理论在前人的论文中得到了发展[J]。化学。物理学，70,4130(1979)]扩展到包括磁偶极子和电四极子相互作用。这是对任意极化的辐射进行的。光活性分子的各向同性样品的左圆偏振光和右圆偏振光的散射强度略有不同。在许多情况下，这种差异预计是相干拉曼强度的10−3倍。这与自发拉曼光谱中观察到的圆形强度差具有相同的数量级。然而，由于相干拉曼散射具有高信噪比和其他优点，因此有人提出相干拉曼散射可能优于自发过程来研究拉曼光学活性。
The fully quantum mechanical theory of coherent Raman scattering developed in a previous paper [J. Chem. Phys. 70, 4130 (1979)] is extended to include magnetic dipole and electric quadrupole interactions. This is done for radiation of arbitrary polarization. The intensities for the scattering of right and left circularly polarized light from an isotropic sample of optically active molecules are shown to differ slightly. The difference, in many cases, is expected to be of the order of 10−3 times the coherent Raman intensity. This is of the same order as circular intensity differentials observed in spontaneous Raman spectra. Because of a high signal to noise ratio as well as other advantages, however, it is proposed that coherent Raman scattering may be superior to the spontaneous process for studying Raman optical activity.