偏振相关电致伸缩光栅测量。

Polarization dependent electrostrictive grating measurements.

作者信息

Rozouvan Stanislav

机构信息

Functional Materials Physics, Physics Department, Taras Shevchenko Kyiv University, 2 Glushkov Prosp., Build. 1, 03680 Kyiv, Ukraine.

出版信息

J Chem Phys. 2007 Aug 28;127(8):084501. doi: 10.1063/1.2761890.

DOI:10.1063/1.2761890

PMID:17764263

Abstract

The laser induced grating spectroscopy experiments were performed with different polarizations of 1064 nm laser pump beams. Thermal and electrostrictive gratings were observed in the mixture of nitrogen at high pressure with methanol vapor. Suppression of gratings by a continuous change of pump beam polarizations was verified both theoretically and experimentally. Odd and even peaks of the registered signal were found to be responsible, respectively, for electrostrictive and thermal gratings in gas media.

摘要

利用1064nm激光泵浦光束的不同偏振进行了激光诱导光栅光谱实验。在高压氮气与甲醇蒸汽的混合物中观察到了热光栅和电致伸缩光栅。通过理论和实验验证了泵浦光束偏振的连续变化对光栅的抑制作用。发现记录信号的奇数和偶数峰值分别对应于气体介质中的电致伸缩光栅和热光栅。