Secondary source generation using 30-fs, PW Ti:sapphire laser (PULSER)

T. M. Jeong; H. T. Kim; I. J. Kim; I. W. Choi; C. M. Kim; K. H. Pae; T. J. Yu; S. K. Lee; J. H. Sung; P. V. Nickles; J. Lee; C. H. Nam

doi:10.1117/12.2021198

7 May 2013 Secondary source generation using 30-fs, PW Ti:sapphire laser (PULSER)

T. M. Jeong, H. T. Kim, I. J. Kim, I. W. Choi, C. M. Kim, K. H. Pae, T. J. Yu, S. K. Lee, J. H. Sung, P. V. Nickles, J. Lee, C. H. Nam

Author Affiliations +

Proceedings Volume 8780, High-Power, High-Energy, and High-Intensity Laser Technology; and Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers; 87801B (2013) https://doi.org/10.1117/12.2021198
Event: SPIE Optics + Optoelectronics, 2013, Prague, Czech Republic

Abstract

We have developed a 0.1-Hz-repetition-rate, 30-fs, 1.5-PW Ti:sapphire laser system for the research on high field physics. In this paper, we describe the design and output performance of the PW Ti:sapphire laser and its applications in the generation of relativistic high order harmonic generation and the acceleration of charged particles (protons and electrons). In the experiment on relativistic harmonic generation, the harmonic order dramatically extended up to 164^th that corresponds to 4.9 nm in wavelength, and the dramatic extension was explained by the oscillatory flying mirror model. Recently, we could accelerate protons up to 45 MeV from a 10-nm polymer target and show the change in the acceleration mechanism from target normal sheath acceleration to radiation pressure acceleration. The femtosecond high power laser system is a good candidate for developing a compact electron accelerator as well. The generation of multi-GeV electron beam was observed from an injection scheme when a PW laser pulse was focused by a long focal length spherical mirror.

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T. M. Jeong, H. T. Kim, I. J. Kim, I. W. Choi, C. M. Kim, K. H. Pae, T. J. Yu, S. K. Lee, J. H. Sung, P. V. Nickles, J. Lee, and C. H. Nam "Secondary source generation using 30-fs, PW Ti:sapphire laser (PULSER)", Proc. SPIE 8780, High-Power, High-Energy, and High-Intensity Laser Technology; and Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers, 87801B (7 May 2013); https://doi.org/10.1117/12.2021198

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