On the nature of "coherent artifact"
On the nature of "coherent artifact"
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DOI：
10.1134/1.1884668
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发表时间：
2005-02-01
影响因子：
1.1
通讯作者：
Georgiev, N
中科院分区：
文献类型：
--
作者：
Lebedev, MV;Misochko, OV;Georgiev, N
通过监测碲单晶的光反射，在时域中对飞秒激光脉冲在泵浦-探测状态下的相干相互作用进行了实验研究。被探测介质的光学响应表现出周期性变化，其频率等于激发激光辐射的频率。所观察到的“相干伪影”对泵浦/探针强度比、累积脉冲的数量以及电磁场和晶体轴的偏振矢量的相互方向的实验依赖性都可以通过所提出的唯象模型得到很好的描述。 (C) 2005 年 Pleiades 出版公司。
The coherent interaction of femtosecond laser pulses in the pump-probe regime has been experimentally studied in the time domain by monitoring light reflection from a tellurium single crystal. The optical response of the probed medium exhibits periodic variations at a frequency equal to that of the exciting laser radiation. Experimental dependences of the observed "coherent artifact" on the pump/probe intensity ratio, the number of accumulated pulses, and the mutual orientation of the polarization vectors of electromagnetic fields and the crystallographic axes are well described by the proposed phenomenological model. (C) 2005 Pleiades Publishing, Inc.