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首页> 外文期刊>Optics Letters >Characterization of coupled nonlinear spatiospectral phase following an ultrafast self-focusing interaction
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Characterization of coupled nonlinear spatiospectral phase following an ultrafast self-focusing interaction

机译:超快速自聚焦相互作用后耦合非线性空间光谱相位的表征

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We use collinear spatially resolved spectral interferometery to characterize the nonlinear phase changes experienced by an intense ultrashort pulse propagating in glass. The measurement yields the spectrally dependent wavefront, allowing us to measure the spatial and chromatic aberrations of the nonlinearly induced lens. For these conditions, we find that while the shape of the spatial wavefront follows the beam profile as expected, the spectral dependence of the lensing power is determined by the self-phase modulation. The simultaneous measurement of the nonlinear spatiospectral phase demonstrates how the nonlinear spectral phase is coupled to self-focusing.
机译:我们使用共线的空间分辨光谱干涉仪来表征在玻璃中传播的超短脉冲所经历的非线性相位变化。测量产生光谱相关的波前,使我们能够测量非线性感应透镜的空间和色差。对于这些条件,我们发现,尽管空间波前的形状符合预期的光束轮廓,但透镜屈光力的光谱依赖性由自相位调制确定。非线性空间光谱相位的同时测量表明了非线性光谱相位如何与自聚焦耦合。

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