Research activities on high-intensity laser and high field physics at APRI-GIST

Tae Moon Jeong

doi:10.1117/12.2184213

1 May 2015 Research activities on high-intensity laser and high field physics at APRI-GIST

Tae Moon Jeong

Proceedings Volume 9515, Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers II; 95150U (2015) https://doi.org/10.1117/12.2184213
Event: SPIE Optics + Optoelectronics, 2015, Prague, Czech Republic

Abstract

The performance of a 0.1-Hz-repetition-rate, 30-fs, 1.5-PW Ti:sapphire laser which is using for research on high field physics in APRI-GIST is presented. The charged particles (electrons and protons) are accelerated and an efficient x-ray generation is demonstrated using the PW laser. Protons are accelerated up to 80 MeV when an ultra-thin polymer target is irradiated by a circularly-polarized PW laser pulse. Electrons are accelerated to multi-GeV level with a help of injector and accelerator scheme. In the relativistic harmonic generation experiment, the harmonic order is dramatically extended, by optimizing the intensity of pre-pulse level, up to 164^th that corresponds to 4.9 nm in wavelength and the experimental results can be explained by the oscillatory flying mirror model. The upgrade of the PW laser to the multi-PW level is under way.

Citation Download Citation

Tae Moon Jeong "Research activities on high-intensity laser and high field physics at APRI-GIST", Proc. SPIE 9515, Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers II, 95150U (1 May 2015); https://doi.org/10.1117/12.2184213

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