Dense Helical Electron Bunch Generation in Near-Critical Density Plasmas with Ultrarelativistic Laser Intensities

The mechanism for emergence of helical electron bunch(HEB) from an ultrarelativistic circularly polarized laser pulse propagating in near-critical density(NCD) plasma is investigated. Self-consistent three-dimensional(3D) Particle-in-Cell(PIC) simulations are performed to model all aspects of the la...

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Autores principales: Hu, Ronghao, Liu, Bin, Lu, Haiyang, Zhou, Meilin, Lin, Chen, Sheng, Zhengming, Chen, Chia-erh, He, Xiantu, Yan, Xueqing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4621409/
https://www.ncbi.nlm.nih.gov/pubmed/26503634
http://dx.doi.org/10.1038/srep15499
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author Hu, Ronghao
Liu, Bin
Lu, Haiyang
Zhou, Meilin
Lin, Chen
Sheng, Zhengming
Chen, Chia-erh
He, Xiantu
Yan, Xueqing
author_facet Hu, Ronghao
Liu, Bin
Lu, Haiyang
Zhou, Meilin
Lin, Chen
Sheng, Zhengming
Chen, Chia-erh
He, Xiantu
Yan, Xueqing
author_sort Hu, Ronghao
collection PubMed
description The mechanism for emergence of helical electron bunch(HEB) from an ultrarelativistic circularly polarized laser pulse propagating in near-critical density(NCD) plasma is investigated. Self-consistent three-dimensional(3D) Particle-in-Cell(PIC) simulations are performed to model all aspects of the laser plasma interaction including laser pulse evolution, electron and ion motions. At a laser intensity of 10(22) W/cm(2), the accelerated electrons have a broadband spectrum ranging from 300 MeV to 1.3 GeV, with the charge of 22 nano-Coulombs(nC) within a solid-angle of 0.14 Sr. Based on the simulation results, a phase-space dynamics model is developed to explain the helical density structure and the broadband energy spectrum.
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spelling pubmed-46214092015-10-29 Dense Helical Electron Bunch Generation in Near-Critical Density Plasmas with Ultrarelativistic Laser Intensities Hu, Ronghao Liu, Bin Lu, Haiyang Zhou, Meilin Lin, Chen Sheng, Zhengming Chen, Chia-erh He, Xiantu Yan, Xueqing Sci Rep Article The mechanism for emergence of helical electron bunch(HEB) from an ultrarelativistic circularly polarized laser pulse propagating in near-critical density(NCD) plasma is investigated. Self-consistent three-dimensional(3D) Particle-in-Cell(PIC) simulations are performed to model all aspects of the laser plasma interaction including laser pulse evolution, electron and ion motions. At a laser intensity of 10(22) W/cm(2), the accelerated electrons have a broadband spectrum ranging from 300 MeV to 1.3 GeV, with the charge of 22 nano-Coulombs(nC) within a solid-angle of 0.14 Sr. Based on the simulation results, a phase-space dynamics model is developed to explain the helical density structure and the broadband energy spectrum. Nature Publishing Group 2015-10-27 /pmc/articles/PMC4621409/ /pubmed/26503634 http://dx.doi.org/10.1038/srep15499 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Hu, Ronghao
Liu, Bin
Lu, Haiyang
Zhou, Meilin
Lin, Chen
Sheng, Zhengming
Chen, Chia-erh
He, Xiantu
Yan, Xueqing
Dense Helical Electron Bunch Generation in Near-Critical Density Plasmas with Ultrarelativistic Laser Intensities
title Dense Helical Electron Bunch Generation in Near-Critical Density Plasmas with Ultrarelativistic Laser Intensities
title_full Dense Helical Electron Bunch Generation in Near-Critical Density Plasmas with Ultrarelativistic Laser Intensities
title_fullStr Dense Helical Electron Bunch Generation in Near-Critical Density Plasmas with Ultrarelativistic Laser Intensities
title_full_unstemmed Dense Helical Electron Bunch Generation in Near-Critical Density Plasmas with Ultrarelativistic Laser Intensities
title_short Dense Helical Electron Bunch Generation in Near-Critical Density Plasmas with Ultrarelativistic Laser Intensities
title_sort dense helical electron bunch generation in near-critical density plasmas with ultrarelativistic laser intensities
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4621409/
https://www.ncbi.nlm.nih.gov/pubmed/26503634
http://dx.doi.org/10.1038/srep15499
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