Journal
OPTICS LETTERS
Volume 42, Issue 19, Pages 3828-3831Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.42.003828
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- Air Force Office of Scientific Research (AFOSR) [FA9550-14-1-0232, FA9550-16-1-0286]
- U. S. Department of Energy (DOE) [DE-SC0014610]
- NESTec
- U.S. Department of Energy (DOE) [DE-SC0014610] Funding Source: U.S. Department of Energy (DOE)
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We demonstrate the generation of 0.85 PW, 30 fs laser pulses at a repetition rate of 3.3 Hz with a record average power of 85 W from a Ti:sapphire laser. The system is pumped by high-energy Nd:glass slab amplifiers frequency doubled in LiB3O5 (LBO). Ultrahigh-contrast. lambda = 400 nm femtosecond pulses were generated in KH2PO4 (KDP) with >40% efficiency. An intensity of 6.5 x 1021 W/cm(2) was obtained by frequency doubling 80% of the available Ti: sapphire energy and focusing the doubled light with an f / 2 parabola. This laser will enable highly relativistic plasma experiments to be conducted at high repetition rate. (C) 2017 Optical Society of America
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