Tolstik E, Kashin O, Matusevich V, Kowarschik R
Institute of Applied Optics, Friedrich-Schiller-University Jena, Froebelstieg 1, 07743 Jena, Germany.
Opt Express. 2011 Jan 31;19(3):2739-47. doi: 10.1364/OE.19.002739.
The channel formation by the self-trapping of a (1 + 1)D beam in polymeric media based on a polymethylmethacrylate (PMMA) matrix containing phenanthrenequinone (PQ) molecules is predicted theoretically and observed experimentally for the first time. Particular attention is paid to the effect of thermal beam expansion, which in conjunction with the photorefractive nonlinearity of the medium results in the possibility to control optically the geometrical parameters of the generated channel.
理论上预测并首次通过实验观察到在含有菲醌（PQ）分子的聚甲基丙烯酸甲酯（PMMA）基质的聚合物介质中，一维（1 + 1）光束通过自陷形成通道。特别关注热光束扩展的影响，它与介质的光折变非线性共同作用，使得能够通过光学手段控制所产生通道的几何参数。
