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Kazuhisa Nakajima
초강력 레이저과학 연구단
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Generation of femtosecond γ-ray bursts stimulated by laser-driven hosing evolution

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Title
Generation of femtosecond γ-ray bursts stimulated by laser-driven hosing evolution
Author(s)
Ma Y.; Chen L.; Li D.; Yan W.; Huang K.; Chen M.; Sheng Z.; Kazuhisa Nakajima; Tajima T.; Zhang J.
Publication Date
2016-07
Journal
SCIENTIFIC REPORTS, v.6, no., pp.30491 -
Publisher
NATURE PUBLISHING GROUP
Abstract
The promising ability of a plasma wiggler based on laser wakefield acceleration to produce betatron X-rays with photon energies of a few keV to hundreds of keV and a peak brilliance of 10 22-10 23 photons/s/mm2/mrad2/0.1%BW has been demonstrated, providing an alternative to large-scale synchrotron light sources. Most methods for generating betatron radiation are based on two typical approaches, one relying on an inherent transverse focusing electrostatic field, which induces transverse oscillation, and the other relying on the electron beam catching up with the rear part of the laser pulse, which results in strong electron resonance. Here, we present a new regime of betatron γ 3-ray radiation generated by stimulating a large-amplitude transverse oscillation of a continuously injected electron bunch through the hosing of the bubble induced by the carrier envelope phase (CEP) effect of the self-steepened laser pulse. Our method increases the critical photon energy to the MeV level, according to the results of particle-in-cell (PIC) simulations. The highly collimated, energetic and femtosecond γ 3-ray bursts that are produced in this way may provide an interesting potential means of exploring nuclear physics in table top photo nuclear reactions.
URI
http://pr.ibs.re.kr/handle/8788114/2759
DOI
10.1038/srep30491
ISSN
2045-2322
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
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