The statistical behaviour of nonresonant CARS intensities
The statistical behaviour of nonresonant CARS intensities
复制标题
非共振 CARS 强度的统计行为
DOI：
10.1016/0030-4018(85)90215-9
复制
发表时间：
1985
影响因子：
2.4
通讯作者：
R. J. Hall
中科院分区：
文献类型：
--
作者：
R. J. Hall
解析地研究了非相干泵浦和斯托克斯光源混合产生的CARS光的统计特性。给出了几种情况下由非共振磁化率产生CARS的强度概率密度。结果表明，当二次谐波被用来提供合适频率的泵浦源时，所产生的非高斯光强涨落引起非共振信号的极大增强。该效应的大小与倍频过程的转换效率有关，与实验结果吻合较好。
The statistical properties of CARS light generated by the mixing of incoherent pump and Stokes sources have been investigated analytically. The intensity probability densities for CARS generation from the nonresonant susceptibility are presented for several cases. It is shown that when second harmonic generation is used to provide pump sources of the right frequency, the resulting non-gaussian intensity fluctuations give rise to large enhancements of the nonresonant signal. The magnitude of the effect is dependent on the conversion efficiency of the frequency-doubling process, and is in good agreement with experiment.