Spatial Optical Parametric Coupling of Picosecond Light Pulses and Transverse Relaxation Effect in Resonant Media
Spatial Optical Parametric Coupling of Picosecond Light Pulses and Transverse Relaxation Effect in Resonant Media
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DOI：
10.1143/jpsj.47.1620
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发表时间：
1979-11
影响因子：
1.7
通讯作者：
T. Yajima;Y. Taira
中科院分区：
文献类型：
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作者：
T. Yajima;Y. Taira
讨论了两个波矢分别为k1和k2的入射光脉冲在共振介质中产生一个波矢为2k 2 -k1的光波的三阶非线性光学过程的动力学性质，特别注意横向弛豫时间T2的影响.它示出的相关轨迹（输出光能量与入射脉冲间隔）为这个过程提供了一个通用的手段，获得信息的超短T2的均匀和非均匀加宽的过渡，并为两个TP（脉冲宽度）T2。用染料分子和皮秒光源对tp> T2进行了实验验证。
The dynamical properties of a third-order nonlinear optical process, in which two incident light pulses with wave vectors k 1 and k 2 generate a light wave with 2 k 2 - k 1 in resonant media, are discussed with particular attention to the effect of transverse relaxation time T 2 . It is shown that the correlation trace (output light energy vs incident pulse separation) for this process provides a general means of obtaining information on ultrashort T 2 for both the homogeneously and inhomogeneously broadened transitions, and for both t p (pulse width) T 2 . An experimental demonstration for t p > T 2 is given by using a dye molecule and a picosecond light source.