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

Authors

• Cheng Liu, University of Nebraska-LincolnFollow
• Jun Zhang, University of Nebraska-Lincoln
• Shouyuan Chen, University of Nebraska-LincolnFollow
• Grigory V. Golovin, University of Nebraska-LincolnFollow
• Sudeep Banerjee, University of Nebraska-LincolnFollow
• Baozhen Zhao, University of Nebraska-LincolnFollow
• Nathan D. Powers, University of Nebraska-LincolnFollow
• Isaac Ghebregziabher, University of Nebraska-Lincoln
• Donald Umstadter, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

2014

Citation

OPTICS LETTERS / Vol. 39, No. 1 / January 1, 2014

Comments

Copyright 2014 Used by permission

Abstract

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