Tailoring the phase-matching function for ultrashort pulse characterization by spectral shearing interferometry
Tailoring the phase-matching function for ultrashort pulse characterization by spectral shearing interferometry
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DOI：
10.1364/josab.24.002064
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发表时间：
2007-09
影响因子：
1.9
通讯作者：
S. Gorza;A. Radunsky;P. Wasylczyk;I. Walmsley
中科院分区：
文献类型：
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作者：
S. Gorza;A. Radunsky;P. Wasylczyk;I. Walmsley
使用频谱不对称II型相位匹配的和频率生成使得用于超短光脉冲测量的光谱剪切干涉测量显着简化。我们提出了宽带和频波混频的分析和数值模型，这对理解潜在的影响至关重要。我们讨论了该方法的光谱和时间限制以及实验实施的各个方面：检索算法的优化，校准程序，以及与其他晶体一起扩展到特别感兴趣的不同光谱区域。
Sum-frequency generation using spectrally asymmetric type II phase matching enables significant simplifications in spectral shearing interferometry as applied for ultrashort optical pulse measurements. We present analytical and numerical models of broadband sum-frequency wave mixing essential to understand the underlying effects. We discuss spectral and temporal limits of the method together with various aspects of experimental implementation: optimization of the retrieval algorithm, calibration procedures, and extension to different spectral regions of particular interest with other crystals.