title: Generation of femtosecond γ-ray bursts stimulated by laser-driven hosing evolution.
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/mm(2)/mrad(2)/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-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-ray bursts that are produced in this way may provide an interesting potential means of exploring nuclear physics in table top photo nuclear reactions.
authors.affiliation: Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Ma
authors.affiliation: Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China.|IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Liming
authors.initials: L
authors.lastname: Chen
authors.affiliation: Institute of High Energy Physics, CAS, Beijing 100049, China.
authors.forename: Dazhang
authors.initials: D
authors.lastname: Li
authors.affiliation: Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China.
authors.forename: Wenchao
authors.initials: W
authors.lastname: Yan
authors.affiliation: Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Huang
authors.affiliation: IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China.|Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Min
authors.initials: M
authors.lastname: Chen
authors.affiliation: IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China.|Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.|Department of Physics, Scottish Universities Physics Alliance, University of Strathclyde, Glasgow G4 0NG, United Kingdom.
authors.forename: Zhengming
authors.initials: Z
authors.lastname: Sheng
authors.affiliation: Center for Relativistic Laser Science, Institute for Basic Science (IBS), Gwangju 500-712, Republic of Korea.
authors.forename: Kazuhisa
authors.initials: K
authors.lastname: Nakajima
authors.affiliation: Department of Physics and Astronomy, University of California, Irvine, California 92697, USA.
authors.forename: Toshiki
authors.initials: T
authors.lastname: Tajima
authors.affiliation: IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China.|Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang