Valtna-Lukner H, Belli F, Ermolov A, Köttig F, Mak K F, Tani F, Travers J C, Russell P St J
Max Planck Institute for the Science of Light, Staudtstrasse 2, 91058 Erlangen, Germany.
Rev Sci Instrum. 2017 Jul;88(7):073106. doi: 10.1063/1.4991853.
A cross-correlation frequency-resolved optical gating (FROG) concept, potentially suitable for characterizing few or sub-cycle pulses in a single shot, is described in which a counter-propagating transient grating is used as both the gate and the dispersive element in a FROG spectrometer. An all-reflective setup, which can operate over the whole transmission range of the nonlinear medium, within the sensitivity range of the matrix sensor, is also proposed, and proof-of-principle experiments for the ultraviolet and visible-to-near-infrared spectral ranges are reported.
描述了一种互相关频率分辨光学门控（FROG）概念，它可能适用于单次表征少周期或亚周期脉冲，其中反向传播的瞬态光栅在FROG光谱仪中既用作门控又用作色散元件。还提出了一种全反射装置，它可以在非线性介质的整个传输范围内、在矩阵传感器的灵敏度范围内运行，并报告了紫外和可见至近红外光谱范围的原理验证实验。
