Demonstration of coherent terahertz transition radiation from relativistic laser-solid interactions

Guo-Qian Liao, Yu-Tong Li, Yi-Hang Zhang, Hao Liu, Xu-Lei Ge, Su Yang, Wen-Qing Wei, Xiao-Hui Yuan, Yan-Qing Deng, Bao-Jun Zhu, Zhe Zhang, Wei-Min Wang, Zheng-Ming Sheng, Li-Ming Chen, Xin Lu, Jing-Long Ma, Xuan Wang, Jie Zhang

Research output: Contribution to journalLetter

39 Citations (Scopus)

Abstract

Coherent transition radiation in the terahertz (THz) region with energies of sub-mJ/pulse has been demonstrated by relativistic laser-driven electron beams crossing the solid-vacuum boundary. Targets including mass-limited foils and layered metal-plastic targets are used to verify the radiation mechanism and characterize the radiation properties. Observations of THz emissions as a function of target parameters agree well with the formation-zone and diffraction model of transition radiation. Particle-in-cell simulations also well reproduce the observed characteristics of THz emissions. The present THz transition radiation enables not only a potential tabletop brilliant THz source, but also a novel noninvasive diagnostic for fast electron generation and transport in laser-plasma interactions.
LanguageEnglish
Article number205003
Number of pages13
JournalPhysical Review Letters
Volume116
DOIs
Publication statusPublished - 20 May 2016

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radiation
lasers
interactions
laser plasma interactions
foils
plastics
electron beams
vacuum
pulses
cells
diffraction
metals
electrons
simulation
energy

Keywords

  • transition radiation
  • acceleration
  • laser-plasma interactions
  • coherent radiation
  • tetrahertz emissions
  • THz radiation
  • coherent transition radiation

Cite this

Liao, Guo-Qian ; Li, Yu-Tong ; Zhang, Yi-Hang ; Liu, Hao ; Ge, Xu-Lei ; Yang, Su ; Wei, Wen-Qing ; Yuan, Xiao-Hui ; Deng, Yan-Qing ; Zhu, Bao-Jun ; Zhang, Zhe ; Wang, Wei-Min ; Sheng, Zheng-Ming ; Chen, Li-Ming ; Lu, Xin ; Ma, Jing-Long ; Wang, Xuan ; Zhang, Jie. / Demonstration of coherent terahertz transition radiation from relativistic laser-solid interactions. In: Physical Review Letters. 2016 ; Vol. 116.
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title = "Demonstration of coherent terahertz transition radiation from relativistic laser-solid interactions",
abstract = "Coherent transition radiation in the terahertz (THz) region with energies of sub-mJ/pulse has been demonstrated by relativistic laser-driven electron beams crossing the solid-vacuum boundary. Targets including mass-limited foils and layered metal-plastic targets are used to verify the radiation mechanism and characterize the radiation properties. Observations of THz emissions as a function of target parameters agree well with the formation-zone and diffraction model of transition radiation. Particle-in-cell simulations also well reproduce the observed characteristics of THz emissions. The present THz transition radiation enables not only a potential tabletop brilliant THz source, but also a novel noninvasive diagnostic for fast electron generation and transport in laser-plasma interactions.",
keywords = "transition radiation, acceleration, laser-plasma interactions , coherent radiation, tetrahertz emissions, THz radiation, coherent transition radiation",
author = "Guo-Qian Liao and Yu-Tong Li and Yi-Hang Zhang and Hao Liu and Xu-Lei Ge and Su Yang and Wen-Qing Wei and Xiao-Hui Yuan and Yan-Qing Deng and Bao-Jun Zhu and Zhe Zhang and Wei-Min Wang and Zheng-Ming Sheng and Li-Ming Chen and Xin Lu and Jing-Long Ma and Xuan Wang and Jie Zhang",
year = "2016",
month = "5",
day = "20",
doi = "10.1103/PhysRevLett.116.205003",
language = "English",
volume = "116",
journal = "Physical Review Letters",
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Liao, G-Q, Li, Y-T, Zhang, Y-H, Liu, H, Ge, X-L, Yang, S, Wei, W-Q, Yuan, X-H, Deng, Y-Q, Zhu, B-J, Zhang, Z, Wang, W-M, Sheng, Z-M, Chen, L-M, Lu, X, Ma, J-L, Wang, X & Zhang, J 2016, 'Demonstration of coherent terahertz transition radiation from relativistic laser-solid interactions' Physical Review Letters, vol. 116, 205003. https://doi.org/10.1103/PhysRevLett.116.205003

Demonstration of coherent terahertz transition radiation from relativistic laser-solid interactions. / Liao, Guo-Qian ; Li, Yu-Tong; Zhang, Yi-Hang; Liu, Hao; Ge, Xu-Lei; Yang, Su; Wei, Wen-Qing; Yuan, Xiao-Hui; Deng, Yan-Qing; Zhu, Bao-Jun; Zhang, Zhe; Wang, Wei-Min; Sheng, Zheng-Ming; Chen, Li-Ming; Lu, Xin; Ma, Jing-Long; Wang, Xuan; Zhang, Jie.

In: Physical Review Letters, Vol. 116, 205003, 20.05.2016.

Research output: Contribution to journalLetter

TY - JOUR

T1 - Demonstration of coherent terahertz transition radiation from relativistic laser-solid interactions

AU - Liao, Guo-Qian

AU - Li, Yu-Tong

AU - Zhang, Yi-Hang

AU - Liu, Hao

AU - Ge, Xu-Lei

AU - Yang, Su

AU - Wei, Wen-Qing

AU - Yuan, Xiao-Hui

AU - Deng, Yan-Qing

AU - Zhu, Bao-Jun

AU - Zhang, Zhe

AU - Wang, Wei-Min

AU - Sheng, Zheng-Ming

AU - Chen, Li-Ming

AU - Lu, Xin

AU - Ma, Jing-Long

AU - Wang, Xuan

AU - Zhang, Jie

PY - 2016/5/20

Y1 - 2016/5/20

N2 - Coherent transition radiation in the terahertz (THz) region with energies of sub-mJ/pulse has been demonstrated by relativistic laser-driven electron beams crossing the solid-vacuum boundary. Targets including mass-limited foils and layered metal-plastic targets are used to verify the radiation mechanism and characterize the radiation properties. Observations of THz emissions as a function of target parameters agree well with the formation-zone and diffraction model of transition radiation. Particle-in-cell simulations also well reproduce the observed characteristics of THz emissions. The present THz transition radiation enables not only a potential tabletop brilliant THz source, but also a novel noninvasive diagnostic for fast electron generation and transport in laser-plasma interactions.

AB - Coherent transition radiation in the terahertz (THz) region with energies of sub-mJ/pulse has been demonstrated by relativistic laser-driven electron beams crossing the solid-vacuum boundary. Targets including mass-limited foils and layered metal-plastic targets are used to verify the radiation mechanism and characterize the radiation properties. Observations of THz emissions as a function of target parameters agree well with the formation-zone and diffraction model of transition radiation. Particle-in-cell simulations also well reproduce the observed characteristics of THz emissions. The present THz transition radiation enables not only a potential tabletop brilliant THz source, but also a novel noninvasive diagnostic for fast electron generation and transport in laser-plasma interactions.

KW - transition radiation

KW - acceleration

KW - laser-plasma interactions

KW - coherent radiation

KW - tetrahertz emissions

KW - THz radiation

KW - coherent transition radiation

UR - http://journals.aps.org/prl

U2 - 10.1103/PhysRevLett.116.205003

DO - 10.1103/PhysRevLett.116.205003

M3 - Letter

VL - 116

JO - Physical Review Letters

T2 - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

M1 - 205003

ER -