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Opt Lett. 2010 Sep 15;35(18):3021-3. doi: 10.1364/OL.35.003021.

0.1 Hz 1.0 PW Ti:sapphire laser.

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Center for Femto-Atto Science and Technology & Advanced Photonics Research Institute (APRI), GIST, Gwangju 500-712, South Korea.


We report on the generation of 1.0 PW, 30 fs laser pulses at a 0.1 Hz repetition rate from a chirped-pulse amplification Ti:sapphire laser system. The energy of the laser pulses is amplified up to 47 J in a final three-pass booster amplifier having 96 J pump energy. To the best of our knowledge, this is the first petawatt Ti:sapphire laser system at a 0.1 Hz repetition rate. The shot-to-shot energy fluctuation of the laser pulses is as low as 0.53% in rms value, and the laser pulses have homogeneous flattop spatial beam profiles.

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