光折变Bi(12)TiO(20)晶体中调制不稳定性的实验证据。

Experimental evidence of modulation instability in a photorefractive Bi(12)TiO(20) crystal.

作者信息

Iturbe-Castillo M D, Torres-Cisneros M, Sánchez-Mondragón J J, Chávez-Cerda S, Stepanov S I, Vysloukh V A, Torres-Cisneros G E

出版信息

Opt Lett. 1995 Sep 15;20(18):1853-5. doi: 10.1364/ol.20.001853.

DOI:10.1364/ol.20.001853

PMID:19862180

Abstract

We present experimental results on the propagation of an interference pattern of two He-Ne laser beams of unequal amplitudes through a photorefractive Bi(12)TiO(20) crystal in the presence of drift nonlinearity. The phenomenon that we have observed is the focusing of the fringes as the nonlinearity of the crystal is increased. We show that such a phenomenon can be quantitatively interpreted in the framework of modulation instability theory.

摘要

我们展示了在存在漂移非线性的情况下，两束不等幅的氦氖激光束的干涉图样通过光折变Bi(12)TiO(20)晶体传播的实验结果。我们观察到的现象是，随着晶体非线性的增加，条纹会聚焦。我们表明，这种现象可以在调制不稳定性理论的框架内进行定量解释。