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Highly efficient double plasma mirror producing ultrahigh-contrast multi-petawatt laser pulses

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Title
Highly efficient double plasma mirror producing ultrahigh-contrast multi-petawatt laser pulses
Author(s)
Il Woo Choi; Cheonha Jeon; Seong Geun Lee; Seung Yeon Kim; Tae Yun Kim; I Jong Kim; Hwang Woon Lee; Jin Woo Yoon; Jae Hee Sung; Seong Ku Lee; Chang Hee Nam
Publication Date
2020-11
Journal
Optics Letters, v.45, no.23, pp.6342 - 6345
Publisher
Zhongguo Kexue Zazhishe/Science in China Press
Abstract
We present a highly efficient double plasma mirror (DPM) that provides ultrahigh-contrast multi-petawatt (PW) laser pulses with a temporal contrast ratio reaching 1017 up to 160 ps and 1012 up to 2 ps before the main pulse. The high reflectivity of 70%, along with the high-contrast enhancement factor of 700,000, was achieved from the DPM installed after the final stage of a 4 PW Ti:sapphire laser. The 4 PW laser was equipped with cross-polarized wave generation and optical parametric chirped-pulse amplification stages for initial high-contrast operation. The DPM operation was undertaken with conditions that did not modify the spatiotemporal profiles of incident multi-PW laser pulses. This highly efficient DPM with the high-contrast enhancement promises the utilization of multiple PMs as a practical rear end for upcoming tens of petawatt lasers to achieve ultrahigh temporal contrast.
URI
https://pr.ibs.re.kr/handle/8788114/9026
DOI
10.1364/OL.409749
ISSN
1671-7694
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > 1. Journal Papers (저널논문)
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