DISPERSION OF NONLINEAR OPTICAL SUSCEPTIBILITY TENSOR IN CENTROSYMMETRIC MEDIA
DISPERSION OF NONLINEAR OPTICAL SUSCEPTIBILITY TENSOR IN CENTROSYMMETRIC MEDIA
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DOI：
10.1103/physrevb.10.4447
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发表时间：
1974-01-01
影响因子：
3.7
通讯作者：
BLOEMBERGEN, N
中科院分区：
文献类型：
--
作者：
LEVENSON, MD;BLOEMBERGEN, N
在中心对称介质中观察到组合频率为2ω1−ω2的光的产生与频率ω1和ω2以及两束入射染料激光的偏振方向有关。观察到了χ(3)的拉曼共振与络电子贡献的干涉。在金刚石和苯中，测量了三阶非线性极化率的所有分量，并根据已知的自发拉曼发射截面进行了校准。在氟化物系列CaF2、SrF2、CdF2、BaF2和方解石中也测量到了立方非线性的贡献。
The production of light at the combination frequency 2 ω 1− ω 2 in centrosymmetric media has been observed as a function of the frequencies ω 1 and ω 2 and the polarization directions of two incident dye-laser beams. The interference of the Raman resonance with the complex electronic contribution to χ (3) has been observed. In diamond and in benzene all of the components of the third-order nonlinear susceptibility have been measured and calibrated with respect to known cross sections for spontaneous Raman emission. Contributions to the cubic nonlinearity have also been measured in the fluoride series Ca F 2, Sr F 2, Cd F 2, Ba F 2, and in calcite.