89. Analysis of the laser-induced lens generated in guest-host liquid crystals, T. Morisaki and H. Ono, Electronics and Communications in Japan Part 2, 87 (2004) 10-19.


We used the high-efficiency nonlinear optical effect caused by the photothermal effect of guest-host (dyedoped) liquid crystals to form a laser-induced concave lens by irradiation with a Gaussian beam. The process for forming the laser-induced concave lens was identified by adapting diffraction theory to the pump-probe method. We also considered the anisotropy of the thermal conductor in the liquid crystal layer and could explain the laser-induced concave lens characteristics observed in practice including the dependence on the dye concentration and the effect of the thickness of the liquid crystal layer from the results of three-dimensional heat conduction analysis.

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