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Vishwa Bandhu Pathak
초강력 레이저과학 연구단
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All optical dual stage laser wakefield acceleration driven by two-color laser pulses

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Title
All optical dual stage laser wakefield acceleration driven by two-color laser pulses
Author(s)
Vishwa Bandhu Pathak; Hyung Taek Kim; Vieira J.; Silva L.O.; Chang Hee Nam
Publication Date
2018-08
Journal
SCIENTIFIC REPORTS, v.8, no.1, pp.11772 -
Publisher
NATURE PUBLISHING GROUP
Abstract
We propose an all-optical dual-stage laser wakefield acceleration (LWFA), staged with co-propagating two-color laser pulses in a plasma medium, to enhance the electron bunch energy. After the depletion of the leading fundamental laser pulse that initiates self-injection and sets up the first stage particle acceleration, the subsequent second-harmonic laser pulse takes over the acceleration process and accelerates the electron bunch in the second stage over a significantly longer distance than in the first stage. In this all optical dual-stage LWFA, the electrons can gain 3 times higher energy as compared to the energy gain from the single stage LWFA driven by a single-color laser pulse with equivalent energy. Our multi-dimensional particle-in-cell simulations demonstrate that a 10-GeV electron bunch with 20-pC charge can be obtained by the two-color dual-stage LWFA using total input laser power of 0.6 PW. © 2018, The Author(s)
URI
http://pr.ibs.re.kr/handle/8788114/5217
ISSN
2045-2322
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
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