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Proceedings Paper

Repetitive petawatt-class laser with near-diffraction-limited focal spot and transform-limited pulse duration
Author(s): Cheng Liu; Sudeep Banerjee; Jun Zhang; Shouyuan Chen; Kevin Brown; Jared Mills; Nathan Powers; Baozhen Zhao; Gregory Golovin; Isaac Ghebregziabher; Donald Umstadter
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Paper Abstract

A repetitive petawatt-class Ti:sapphire laser system operating with high spatial and temporal beam quality is demonstrated. Maximum pulse energy of 30 J is obtained via five multi-pass amplification stages. Closed-loop feedback control systems in the temporal and spatial domains are used to yield Fourier-transform-limited pulse duration (33.7 fs), and diffraction-limited focal spot sizes (with several different tight focusing optics). The laser parameters have been fully characterized at high-power, and are monitored in real-time, to ensure that they meet the experimental requirements for laser-wakefield electron acceleration and x-ray generation.

Paper Details

Date Published: 6 March 2013
PDF: 7 pages
Proc. SPIE 8599, Solid State Lasers XXII: Technology and Devices, 859919 (6 March 2013); doi: 10.1117/12.2005008
Show Author Affiliations
Cheng Liu, Univ. of Nebraska-Lincoln (United States)
Sudeep Banerjee, Univ. of Nebraska-Lincoln (United States)
Jun Zhang, Univ. of Nebraska-Lincoln (United States)
Shouyuan Chen, Univ. of Nebraska-Lincoln (United States)
Kevin Brown, Univ. of Nebraska-Lincoln (United States)
Jared Mills, Univ. of Nebraska-Lincoln (United States)
Nathan Powers, Univ. of Nebraska-Lincoln (United States)
Baozhen Zhao, Univ. of Nebraska-Lincoln (United States)
Gregory Golovin, Univ. of Nebraska-Lincoln (United States)
Isaac Ghebregziabher, Univ. of Nebraska-Lincoln (United States)
Donald Umstadter, Univ. of Nebraska-Lincoln (United States)


Published in SPIE Proceedings Vol. 8599:
Solid State Lasers XXII: Technology and Devices
W. Andrew Clarkson; Ramesh Shori, Editor(s)

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