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초강력 레이저 과학 연구단
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Stable multi-GeV electron accelerator driven by waveform-controlled PW laser pulses

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Title
Stable multi-GeV electron accelerator driven by waveform-controlled PW laser pulses
Author(s)
Hyung Taek Kim; V. B. Pathak; Ki Hong Pae; A. Lifschitz; F. Sylla; Jung Hun Shin; C. Hojbota; Seong Ku Lee; Jae Hee Sung; Hwang Woon Lee; E. Guillaume; C. Thaury; Kazuhisa Nakajima; J. Vieira; L. O. Silva; V. Malka; Chang Hee Nam
Publication Date
2017-12
Journal
SCIENTIFIC REPORTS, v.7, no.1, pp.10203 -
Publisher
NATURE PUBLISHING GROUP
Abstract
The achievable energy and the stability of accelerated electron beams have been the most critical issues in laser wakefield acceleration. As laser propagation, plasma wave formation and electron acceleration are highly nonlinear processes, the laser wakefield acceleration (LWFA) is extremely sensitive to initial experimental conditions. We propose a simple and elegant waveform control method for the LWFA process to enhance the performance of a laser electron accelerator by applying a fully optical and programmable technique to control the chirp of PW laser pulses. We found sensitive dependence of energy and stability of electron beams on the spectral phase of laser pulses and obtained stable 2-GeV electron beams from a 1-cm gas cell of helium. The waveform control technique for LWFA would prompt practical applications of centimeter-scale GeV-electron accelerators to a compact radiation sources in the x-ray and gamma-ray regions. © The Author(s) 2017
URI
http://pr.ibs.re.kr/handle/8788114/3837
DOI
10.1038/s41598-017-09267-1
ISSN
2045-2322
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
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