Simple single-shot complete spatiotemporal intensity and phase measurement of an arbitrary ultrashort pulse using coherent modulation imaging
Yingming Xu, Y. Yi, Ping Zhu, Xingchen Pan, Qıang Zhang, Liangze Pan, Fucai Ding, Dongjun Zhang, Xiao Liang, Meizhi Sun, Ailin Guo, Xuejie Zhang, Hua Tao, Zhe Guang, Cheng Liu, Xinglong Xie, Ping Zhu, Rick Trebino
Abstract
We propose a simple single-shot spatiotemporal measurement technique called coherent modulation imaging for the spatio-spectrum (CMISS), which reconstructs the full three-dimensional high-resolution characteristics of ultrashort pulses based on frequency-space division and coherent modulation imaging. We demonstrated it experimentally by measuring the spatiotemporal amplitude and phase of a single pulse with a spatial resolution of 44 µm and a phase accuracy of 0.04 rad. CMISS has good potential for high-power ultrashort-pulse laser facilities and can measure even spatiotemporally complicated pulses with important applications.