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Direct Four-photon Excitation of Amplified Spontaneous Emission in a Nonlinear Organic Chromophore

机译:非线性有机发色团中自发发射的直接四光子激发

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摘要

We report four-photon pumped amplified spontaneous emission in an organic chromophore. The phenomenon is observed when intense infrared laser radiation illuminates a nonlinear chromophore solution. As a result of this illumination, a strong and highly directional radiation in the visible wavelength range is generated in both the forward and the backward directions, with an angular divergence similar to that of the pump beam.
机译:我们报告在有机发色团中的四光子泵浦放大的自发发射。当强烈的红外激光辐射照亮非线性发色团溶液时,会观察到该现象。这种照明的结果是,在向前和向后的方向上都产生了可见波长范围内的强且高度定向的辐射,其角度发散与泵浦光束的发散角相似。

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