Linden S, Kuhl J, Giessen H
Opt Lett. 1999 Apr 15;24(8):569-71. doi: 10.1364/ol.24.000569.
We present difference-frequency generation cross-correlation frequency-resolved optical gating, a new method of characterizing the amplitude and phase of weak ultrashort pulses in the blue spectral region. The method uses the spectrally resolved downconversion signal of the blue pulse and a fully characterized reference pulse with a lower center frequency. The amplitude and phase of the blue test pulse are retrieved from the corresponding spectrogram and electric field of the reference pulse with an interactive Fourier-transform algorithm.
我们提出了差频产生互相关频率分辨光学门控技术，这是一种用于表征蓝光光谱区域中微弱超短脉冲的幅度和相位的新方法。该方法利用蓝光脉冲的光谱分辨下转换信号以及具有较低中心频率且特性完全已知的参考脉冲。通过交互式傅里叶变换算法，从参考脉冲相应的频谱图和电场中获取蓝光测试脉冲的幅度和相位。
