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Mohammad, Mirzaie
초강력 레이저과학 연구단
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Circularly polarized x-ray generation from an ionization induced laser plasma electron accelerator

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Title
Circularly polarized x-ray generation from an ionization induced laser plasma electron accelerator
Author(s)
Feng, J; Li, YF; Geng, XT; Li, DZ; Wang, JG; Mohammad Mirzaie; Chen, LM
Subject
plasma accelerator, ; ionization injection, ; synchrotron radiation, ; polarization
Publication Date
2020-10
Journal
PLASMA PHYSICS AND CONTROLLED FUSION, v.62, no.10, pp.105021
Publisher
IOP PUBLISHING LTD
Abstract
© 2020 IOP Publishing Ltd Printed in the UK A laser plasma accelerator could provide high-intensity x-ray radiation as the basis for the next generation compact radiation source. However, there is still a lack of tunability for the radiation polarization, especially the circular polarization. Here, we propose a new method for achieving intense circularly polarized x-rays via circularly polarized 20 TW laser pulses driving plasma wakefield acceleration in the regime of ionization injection. When the laser pulse duration is long enough, the ionization injected electrons would not only possess angular momentum, but also be resonant with the laser pulses, resulting in helix structure trajectories in the process of acceleration. In our simulation, we acquired synchrotron radiation with the circularly polarized degreeP(c)similar to 0.8, the pulse duration similar to 16 fs, the energy spectrum peak similar to 1 keV and the brilliance similar to 1.8 x 10(20)photons s(-1)mm(-2)mrad(-2)/0.1%BW. Such an ultra-fast and ultra-brilliant circularly polarized x-ray source has excellent application prospects in the analysis of complex bio-macro-molecule structures and for probing warm dense matter
URI
https://pr.ibs.re.kr/handle/8788114/7607
DOI
10.1088/1361-6587/abaf0b
ISSN
0741-3335
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > 1. Journal Papers (저널논문)
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