Adaptive-feedback spectral-phase control for interactions with transform-limited ultrashort high-power laser pulses

作者:Liu Cheng; Zhang Jun; Chen Shouyuan; Golovin Gregory; Banerjee Sudeep; Zhao Baozhen; Powers Nathan; Ghebregziabher Isaac; Umstadter Donald*
来源:Optics Letters, 2014, 39(1): 80-83.
DOI:10.1364/OL.39.000080

摘要

Fourier-transform-limited light pulses were obtained at the laser-plasma interaction point of a 100-TW peak-power laser in vacuum. The spectral-phase distortion induced by the dispersion mismatching between the stretcher, compressor, and dispersive materials was fully compensated for by means of an adaptive closed-loop. The coherent temporal contrast on the sub-picosecond time scale was two orders of magnitude higher than that without adaptive control. This novel phase control capability enabled the experimental study of the dependence of laser wakefield acceleration on the spectral phase of intense laser light.

  • 出版日期2014-1-1

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