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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea


  • Vol. 13, Iss. 1 — Mar. 25, 2009
  • pp: 8–14

Laser Acceleration of Electron Beams to the GeV-class Energies in Gas Jets

Nasr A.M. Hafz, Tae-Moon Jeong, Seong-Ku Lee, Il-Woo Choi, Ki-Hong Pae, Victor V. Kulagin, Jae-Hee Sung, Tae-Jun Yu, John R. Cary, Do-Kyeong Ko, and Jong-Min Lee  »View Author Affiliations

Journal of the Optical Society of Korea, Vol. 13, Issue 1, pp. 8-14 (2009)

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In a laser-plasma wakefield accelerator, the ponderomotive force of an ultrashort high intensity laser pulse excites a longitudinal wave or plasma bubble in a way similar to the excitation of a wake wave behind a boat as it propagates on the water surface. Electric fields inside the plasma bubble can be several orders of magnitude higher than those available in conventional RF-based particle accelerator facilities which are limited by material breakdown. Therefore, if an electron bunch is properly phase-locked with the bubble's acceleration field, it can gain relativistic energies within an extremely short distance. Here, in the bubble regime we show the generation of stable and reproducible sub GeV, and GeV-class electron beams. Supported by three-dimensional particle-in-cell simulations, our experimental results show the highest acceleration gradients produced so far. Simulations suggested that the plasma bubble elongation should be minimized in order to achieve higher electron beam energies.

© 2009 Optical Society of Korea

OCIS Codes
(000.2190) General : Experimental physics
(260.5950) Physical optics : Self-focusing
(320.7080) Ultrafast optics : Ultrafast devices
(350.5400) Other areas of optics : Plasmas

Original Manuscript: December 16, 2009
Revised Manuscript: January 8, 2009
Manuscript Accepted: January 8, 2009
Published: March 25, 2009

Nasr A.M. Hafz, Tae-Moon Jeong, Seong-Ku Lee, Il-Woo Choi, Ki-Hong Pae, Victor V. Kulagin, Jae-Hee Sung, Tae-Jun Yu, John R. Cary, Do-Kyeong Ko, and Jong-Min Lee, "Laser Acceleration of Electron Beams to the GeV-class Energies in Gas Jets," J. Opt. Soc. Korea 13, 8-14 (2009)

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