Collimated GeV attosecond electron–positron bunches from a plasma channel driven by 10 PW lasers

High-energy positrons and bright γ-ray sources are of great importance both in fundamental research and for practical applications. However, collimated GeV electron–positron pair jets and γ-ray flashes are still rarely produced in the laboratory. Here, we demonstrate that by irradiating a near-criti...

Full description

Bibliographic Details
Main Authors:	Xing-Long Zhu, Min Chen, Tong-Pu Yu, Su-Ming Weng, Feng He, Zheng-Ming Sheng
Format:	Article
Language:	English
Published:	AIP Publishing LLC 2019-01-01
Series:	Matter and Radiation at Extremes
Online Access:	http://dx.doi.org/10.1063/1.5083914

id	doaj-2c7e995d7a8c46d49365cea664397f22
record_format	Article
spelling	doaj-2c7e995d7a8c46d49365cea664397f222020-11-24T21:48:23ZengAIP Publishing LLCMatter and Radiation at Extremes2468-080X2019-01-0141014401014401-610.1063/1.5083914006901MRECollimated GeV attosecond electron–positron bunches from a plasma channel driven by 10 PW lasersXing-Long Zhu0Min Chen1Tong-Pu Yu2Su-Ming Weng3Feng He4Zheng-Ming Sheng5Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, ChinaKey Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, ChinaDepartment of Physics, National University of Defense Technology, Changsha 410073, ChinaKey Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, ChinaKey Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, ChinaKey Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, ChinaHigh-energy positrons and bright γ-ray sources are of great importance both in fundamental research and for practical applications. However, collimated GeV electron–positron pair jets and γ-ray flashes are still rarely produced in the laboratory. Here, we demonstrate that by irradiating a near-critical-density plasma channel with two 10 PW-scale laser pulses, highly directional GeV electron–positron pairs and bright γ-ray beams can be efficiently generated. Three-dimensional particle-in-cell simulations show the formation of GeV positron jets with high density (8×1021/ cm3), attosecond duration (400 as), and a divergence angle of 14°. Additionally, ultrabright [2×1025 photons s−1 mm−2 mrad−2 (0.1% bandwidth)−1] collimated attosecond (370 as) γ-ray flashes with a laser energy conversion efficiency of 5.6% are emitted. These features show the significant advantage of using a plasma channel as compared with a uniform plasma and thus open up new possibilities for a wide variety of applications.http://dx.doi.org/10.1063/1.5083914
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Xing-Long Zhu Min Chen Tong-Pu Yu Su-Ming Weng Feng He Zheng-Ming Sheng
spellingShingle	Xing-Long Zhu Min Chen Tong-Pu Yu Su-Ming Weng Feng He Zheng-Ming Sheng Collimated GeV attosecond electron–positron bunches from a plasma channel driven by 10 PW lasers Matter and Radiation at Extremes
author_facet	Xing-Long Zhu Min Chen Tong-Pu Yu Su-Ming Weng Feng He Zheng-Ming Sheng
author_sort	Xing-Long Zhu
title	Collimated GeV attosecond electron–positron bunches from a plasma channel driven by 10 PW lasers
title_short	Collimated GeV attosecond electron–positron bunches from a plasma channel driven by 10 PW lasers
title_full	Collimated GeV attosecond electron–positron bunches from a plasma channel driven by 10 PW lasers
title_fullStr	Collimated GeV attosecond electron–positron bunches from a plasma channel driven by 10 PW lasers
title_full_unstemmed	Collimated GeV attosecond electron–positron bunches from a plasma channel driven by 10 PW lasers
title_sort	collimated gev attosecond electron–positron bunches from a plasma channel driven by 10 pw lasers
publisher	AIP Publishing LLC
series	Matter and Radiation at Extremes
issn	2468-080X
publishDate	2019-01-01
description	High-energy positrons and bright γ-ray sources are of great importance both in fundamental research and for practical applications. However, collimated GeV electron–positron pair jets and γ-ray flashes are still rarely produced in the laboratory. Here, we demonstrate that by irradiating a near-critical-density plasma channel with two 10 PW-scale laser pulses, highly directional GeV electron–positron pairs and bright γ-ray beams can be efficiently generated. Three-dimensional particle-in-cell simulations show the formation of GeV positron jets with high density (8×1021/ cm3), attosecond duration (400 as), and a divergence angle of 14°. Additionally, ultrabright [2×1025 photons s−1 mm−2 mrad−2 (0.1% bandwidth)−1] collimated attosecond (370 as) γ-ray flashes with a laser energy conversion efficiency of 5.6% are emitted. These features show the significant advantage of using a plasma channel as compared with a uniform plasma and thus open up new possibilities for a wide variety of applications.
url	http://dx.doi.org/10.1063/1.5083914
work_keys_str_mv	AT xinglongzhu collimatedgevattosecondelectronpositronbunchesfromaplasmachanneldrivenby10pwlasers AT minchen collimatedgevattosecondelectronpositronbunchesfromaplasmachanneldrivenby10pwlasers AT tongpuyu collimatedgevattosecondelectronpositronbunchesfromaplasmachanneldrivenby10pwlasers AT sumingweng collimatedgevattosecondelectronpositronbunchesfromaplasmachanneldrivenby10pwlasers AT fenghe collimatedgevattosecondelectronpositronbunchesfromaplasmachanneldrivenby10pwlasers AT zhengmingsheng collimatedgevattosecondelectronpositronbunchesfromaplasmachanneldrivenby10pwlasers
_version_	1725892504514985984

Collimated GeV attosecond electron–positron bunches from a plasma channel driven by 10 PW lasers

Similar Items