Tunable synchrotron-like radiation from centimeter scale plasma channels

Min Chen, Ji Luo, Fei-yu Li, Feng Liu, Zheng-Ming Sheng, Jie Zhang

Research output: Contribution to journalArticle

Abstract

Synchrotron radiation sources are immensely useful tools for scientific researches and many practical applications. Currently, the state-of-the-art synchrotrons rely on conventional accelerators, where electrons are accelerated in a straight line and radiate in bending magnets or other insertion devices. However, these facilities are usually large and costly. Here, we study a compact all-optical synchrotron like radiation source based on laser-plasma acceleration either in a straight or a curved plasma channel. With the laser pulse off-axially injected, its centroid oscillates transversely in the plasma channel. This results in a wiggler motion of the whole accelerating structure and the self-trapped electrons behind the laser pulse, leading to strong synchrotron-like radiations with tunable spectra. It is further shown that a palmtop ring-shaped synchrotron is possible with current high power laser technologies. With its potential of high flexibility and tunability, such light sources once realized would find applications in wide areas and make up the shortage of large synchrotron radiation facilities.
LanguageEnglish
Article numbere16015
Number of pages7
JournalLight: Science & Applications
Volume5
DOIs
Publication statusPublished - 15 Jan 2016

Fingerprint

Synchrotrons
synchrotron radiation
Plasmas
Radiation
Synchrotron radiation
radiation sources
Laser pulses
synchrotrons
plasma acceleration
electron accelerators
High power lasers
pulses
laser plasmas
centroids
high power lasers
Particle accelerators
lasers
Magnets
Light sources
insertion

Keywords

  • synchrotron radiation
  • laser wakefield acceleration
  • laser guiding

Cite this

Chen, Min ; Luo, Ji ; Li, Fei-yu ; Liu, Feng ; Sheng, Zheng-Ming ; Zhang, Jie. / Tunable synchrotron-like radiation from centimeter scale plasma channels. In: Light: Science & Applications. 2016 ; Vol. 5.
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Tunable synchrotron-like radiation from centimeter scale plasma channels. / Chen, Min; Luo, Ji; Li, Fei-yu; Liu, Feng; Sheng, Zheng-Ming; Zhang, Jie.

In: Light: Science & Applications, Vol. 5, e16015, 15.01.2016.

Research output: Contribution to journalArticle

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AU - Chen, Min

AU - Luo, Ji

AU - Li, Fei-yu

AU - Liu, Feng

AU - Sheng, Zheng-Ming

AU - Zhang, Jie

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AB - Synchrotron radiation sources are immensely useful tools for scientific researches and many practical applications. Currently, the state-of-the-art synchrotrons rely on conventional accelerators, where electrons are accelerated in a straight line and radiate in bending magnets or other insertion devices. However, these facilities are usually large and costly. Here, we study a compact all-optical synchrotron like radiation source based on laser-plasma acceleration either in a straight or a curved plasma channel. With the laser pulse off-axially injected, its centroid oscillates transversely in the plasma channel. This results in a wiggler motion of the whole accelerating structure and the self-trapped electrons behind the laser pulse, leading to strong synchrotron-like radiations with tunable spectra. It is further shown that a palmtop ring-shaped synchrotron is possible with current high power laser technologies. With its potential of high flexibility and tunability, such light sources once realized would find applications in wide areas and make up the shortage of large synchrotron radiation facilities.

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