Highly efficient laser-driven Compton gamma-ray source

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Title
Highly efficient laser-driven Compton gamma-ray source
Author(s)
TW Huang; CM Kim; Zhou, CT; MH Cho; K Nakajima; CM Ryu; Ruan, SC; CH Nam
Publication Date
2019-01
Journal
NEW JOURNAL OF PHYSICS, v.21, no.1, pp.013008 -
Publisher
IOP PUBLISHING LTD
Abstract
The recent advancement of high-intensity lasers has made all-optical Compton scattering become a promising way to produce ultrashort brilliant gamma-rays in an ultra-compact system. However, so far achieved Compton gamma-ray sources are limited by low conversion efficiency and spectral intensity. Here we present a highly efficient gamma photon emitter obtained by irradiating a high-intensity laser pulse on a miniature plasma device consisting of a plasma lens and a plasma mirror. This concept exploits strong spatiotemporal laser-shaping process and high-charge electron acceleration process in the plasma lens, as well as an efficient nonlinear Compton scattering process enabled by the plasma mirror. Our full three-dimensional particle-in-cell simulations demonstrate that in this novel scheme, brilliant gamma-rays with very high conversion efficiency (higher than 10(-2)) and spectral intensity (similar to 10(9) photons/0.1%BW) can be achieved by employing currently available petawatt-class lasers with intensity of 10(21) W cm(-2). Such efficient and intense gamma-ray sources would find applications in wide-ranging areas. ©2019 The Author(s).
URI
https://pr.ibs.re.kr/handle/8788114/5750
ISSN
1367-2630
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
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