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

Cheng Liu, Jun Zhang, Shouyuan Chen, Gregory Golovin, Sudeep Banerjee, Baozhen Zhao, Nathan Powers, Isaac Ghebregziabher, Donald Umstadter

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)80-83
Number of pages4
JournalOptics Letters
Volume39
Issue number1
DOIs
Publication statusPublished - Jan 1 2014

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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