Comment on “Polarization effects in time resolved incoherent anti-Stokes Raman spectroscopy” [J. Chem. Phys. 105, 6141 (1996)]
Comment on “Polarization effects in time resolved incoherent anti-Stokes Raman spectroscopy” [J. Chem. Phys. 105, 6141 (1996)]
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对“时间分辨反斯托克斯拉曼光谱中的偏振效应”的评论 [J. Phys. 105, 6141 (1996)]
DOI：
10.1063/1.477473
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发表时间：
1998
影响因子：
4.4
通讯作者：
Y. Mizutani
中科院分区：
文献类型：
--
作者：
Y. Mizutani
Hofmann等对强振动激发下反斯托克斯拉曼测量的理论检验[M.霍夫曼河Zurl和H. Graener，J.Chem.Phys.105，6141（1996）]进行了重新检查。结果表明，在垂直偏振泵浦的情况下，退偏光强与泵浦光的入射角有关。因此，人们可以观察到“旋转自由”的退偏散射，只有一些特定的入射角，这是没有描述在他们的论文。此外，由于目前激光是这类实验的光源，建议用偏振探测光的退偏比定义代替非偏振光的退偏比定义。
The theoretical inspection on anti-Stokes Raman measurements following strong vibrational excitation by Hofmann et al. [M. Hofmann, R. Zurl, and H. Graener, J. Chem. Phys. 105, 6141 (1996)] was reexamined. It is found that the depolarized intensity is dependent on the incident angle of the pump pulse in the case of perpendicularly polarized pumping. Therefore, one can observe “rotation-free” depolarized scattering only with some particular incident angle, which was not described in their paper. In addition to that, it is suggested to use the definition of depolarization ratio for polarized probe light instead of that for unpolarized light, since currently laser is a light source for this kind of experiments.