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Title: A bright attosecond x-ray pulse train generation in a double-laser-driven cone target

Abstract

By using full three-dimensional particle-in-cell and Monte Carlo simulations, we investigate the generation of a high-brightness attosecond x-ray pulse train in a double-laser-driven cone target. The scheme makes use of two lasers: the first high-intensity laser with a laser peak intensity 1.37 × 10{sup 20 }W/cm{sup 2} irradiates the cone and produces overdense attosecond electron bunches; the second counterpropagating weakly relativistic laser with a laser peak intensity 4.932 × 10{sup 17 }W/cm{sup 2} interacts with the produced electron bunches and a bright x-ray pulse train is generated by Thomson backscattering of the second laser off the attosecond electron bunches. It is shown that the photon flux rises by 5 times using the cone target as compared with a normal channel. Meanwhile, the x-ray peak brightness increases significantly from 1.4 × 10{sup 21}/(s mm{sup 2} mrad{sup 2} 0.1 keV) to 6.0 × 10{sup 21}/(s mm{sup 2} mrad{sup 2} 0.1 keV), which is much higher than that of the Thomson x-ray source generated from traditional accelerators. We also discuss the influence of the laser and target parameters on the x-ray pulse properties. This compact bright x-ray source may have diverse applications, e.g., the study of electric dynamics and harmonics emission in the atomic scale.

Authors:
; ; ;  [1];  [2]
  1. College of Science, National University of Defense Technology, Changsha 410073 (China)
  2. School of Nuclear Science and Technology, University of South China, Hengyang 421001 (China)
Publication Date:
OSTI Identifier:
22596660
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 119; Journal Issue: 24; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BACKSCATTERING; BRIGHTNESS; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; CONES; ELECTRONS; KEV RANGE 01-10; LASERS; MONTE CARLO METHOD; PEAKS; PHOTONS; PULSES; RELATIVISTIC RANGE; THOMSON SCATTERING; THREE-DIMENSIONAL CALCULATIONS; X RADIATION; X-RAY SOURCES

Citation Formats

Hu, Li-Xiang, Yu, Tong-Pu, Shao, Fu-Qiu, Yin, Yan, Luo, Wen, and Extreme Light Infrastructure—Nuclear Physics, “Horia Hulubei” National Institute for Physics and Nuclear Engineering, 30 Reactorului, Bucharest-Magurele 077125. A bright attosecond x-ray pulse train generation in a double-laser-driven cone target. United States: N. p., 2016. Web. doi:10.1063/1.4954321.
Hu, Li-Xiang, Yu, Tong-Pu, Shao, Fu-Qiu, Yin, Yan, Luo, Wen, & Extreme Light Infrastructure—Nuclear Physics, “Horia Hulubei” National Institute for Physics and Nuclear Engineering, 30 Reactorului, Bucharest-Magurele 077125. A bright attosecond x-ray pulse train generation in a double-laser-driven cone target. United States. doi:10.1063/1.4954321.
Hu, Li-Xiang, Yu, Tong-Pu, Shao, Fu-Qiu, Yin, Yan, Luo, Wen, and Extreme Light Infrastructure—Nuclear Physics, “Horia Hulubei” National Institute for Physics and Nuclear Engineering, 30 Reactorului, Bucharest-Magurele 077125. Tue . "A bright attosecond x-ray pulse train generation in a double-laser-driven cone target". United States. doi:10.1063/1.4954321.
@article{osti_22596660,
title = {A bright attosecond x-ray pulse train generation in a double-laser-driven cone target},
author = {Hu, Li-Xiang and Yu, Tong-Pu and Shao, Fu-Qiu and Yin, Yan and Luo, Wen and Extreme Light Infrastructure—Nuclear Physics, “Horia Hulubei” National Institute for Physics and Nuclear Engineering, 30 Reactorului, Bucharest-Magurele 077125},
abstractNote = {By using full three-dimensional particle-in-cell and Monte Carlo simulations, we investigate the generation of a high-brightness attosecond x-ray pulse train in a double-laser-driven cone target. The scheme makes use of two lasers: the first high-intensity laser with a laser peak intensity 1.37 × 10{sup 20 }W/cm{sup 2} irradiates the cone and produces overdense attosecond electron bunches; the second counterpropagating weakly relativistic laser with a laser peak intensity 4.932 × 10{sup 17 }W/cm{sup 2} interacts with the produced electron bunches and a bright x-ray pulse train is generated by Thomson backscattering of the second laser off the attosecond electron bunches. It is shown that the photon flux rises by 5 times using the cone target as compared with a normal channel. Meanwhile, the x-ray peak brightness increases significantly from 1.4 × 10{sup 21}/(s mm{sup 2} mrad{sup 2} 0.1 keV) to 6.0 × 10{sup 21}/(s mm{sup 2} mrad{sup 2} 0.1 keV), which is much higher than that of the Thomson x-ray source generated from traditional accelerators. We also discuss the influence of the laser and target parameters on the x-ray pulse properties. This compact bright x-ray source may have diverse applications, e.g., the study of electric dynamics and harmonics emission in the atomic scale.},
doi = {10.1063/1.4954321},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 24,
volume = 119,
place = {United States},
year = {2016},
month = {6}
}