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Toward an understanding of white-light generation in cubic media--polarization properties across the entire spectral range

机译:理解立方介质中的白光-整个光谱范围内的偏振特性

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摘要

We present an extensive investigation of the polarization properties of a femtosecond-laser-induced white-light(WL) continuum generated in a cubic crystal (CaF_(2)). The WL spectrum and threshold energies have been examined for input polarizations with various degrees of ellipticity. For linear input polarization, the WL spectrum shows strong depolarization around the input wavelength, while the preservation of the input polarization is pronounced toward the blue spectral region. The observed depolarization effect has been elucidated in the framework of current models for WL generation.
机译:我们目前对立方晶体(CaF_(2))中产生的飞秒激光诱导的白光(WL)连续体的偏振特性进行了广泛的研究。已经检查了具有各种椭圆度的输入偏振的WL光谱和阈值能量。对于线性输入偏振,WL光谱在输入波长附近显示强去偏振,而输入偏振的保留朝向蓝色光谱区域明显。在用于WL产生的当前模型的框架中已经阐明了观察到的去极化作用。

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