摘要：

The 2-methyl-4-nitroaniline(MNA)-doped polymethyl methacrylate (PMMA) film was prepared for intracavity pulse compression of a short pulse laser. This organic film held between two cover glasses was formed by means of an evacuated hot-press apparatus. The ultra fast response to a femtosecond light pulse was observed, which shows 3rd order nonlinear optical effects.

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