We investigated how the Z-scan technique can be explored to distinguish two types of nonlinear refractive effects by employing two distinct laser polarizations. It is possible that pure electronic, molecular orientation and thermal nonlinear effects may occur simultaneously during light-matter interaction. We found a way to discriminate and quantify two distinct nonlinear processes from Z-scan signals measured with linear and circular polarizations. This paper provides analytical equations for nonlinear refractions and in order to test them, we carried out measurements in CS2 and in a rhodamine-B solution, where electronic and orientational, and electronic and thermal nonlinearities mixing, respectively, are present.

中文翻译：

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通过偏振分辨Z扫描测量来区分两个不同的非线性效应。

我们研究了如何通过使用两种不同的激光偏振来探索Z扫描技术来区分两种类型的非线性折射效应。纯电子，分子取向和热非线性效应可能在光-物质相互作用期间同时发生。我们找到了一种从线性和圆极化测量的Z扫描信号中区分和量化两个不同的非线性过程的方法。本文提供了非线性折射的解析方程，为了测试它们，我们在CS2和若丹明B溶液中分别进行了电子和取向以及电子和热非线性混合的情况下进行了测量。