Gayathri C, Ramalingam A
Department of Physics, Centre for Laser Technology, Anna University, Chennai 600025, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2008 Mar;69(3):980-4. doi: 10.1016/j.saa.2007.05.060. Epub 2007 Jun 5.
In order to protect optical sensors and human eyes from debilitating laser effects, the intensity of the incoming laser light has to be opportunely reduced. Here, we report our results on the third-order optical nonlinearity and optical limiting properties of three azo dyes exposed to a 532nm continuous wave laser. We have observed low power optical limiting based on nonlinear refraction in our samples.
为了保护光学传感器和人眼免受有害激光效应的影响，必须适当地降低入射激光的强度。在此，我们报告了三种偶氮染料在532nm连续波激光照射下的三阶光学非线性和光限幅特性的研究结果。我们在样品中观察到了基于非线性折射的低功率光限幅现象。
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