Evidence of photon acceleration by laser wake fields

C.D. Murphy, R. Trines, J. Vieira, A.J.W. Reitsma, R. Bingham, J.L. Collier, E.J. Divall, P.S. Foster, R. Viskup, D.A. Jaroszynski, J.G. Gallacher

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

Photon acceleration is the phenomenon whereby a light wave changes color when propagating through a medium whose index of refraction changes in time. This concept can be used to describe the spectral changes experienced by electromagnetic waves when they propagate in spatially and temporally varying plasmas. In this paper the detection of a large-amplitude laser-driven wake field is reported for the first time, demonstrating photon acceleration. Several features characteristic of photon acceleration in wake fields, such as splitting of the main spectral peak and asymmetries between the blueshift and redshift for large shifts, have been observed. The experiment is modeled using both a novel photon-kinetic code and a three-dimensional particle-in-cell code. In addition to the wide-ranging applications in the field of compact particle accelerators, the concept of wave kinetics can be applied to understanding phenomena in nonlinear optics, space physics, and fusion energy research.
Original languageEnglish
Pages (from-to)033108-1-033108-8
JournalPhysics of Plasmas
Volume13
Issue number3
DOIs
Publication statusPublished - Mar 2006

Fingerprint

wakes
photons
lasers
particle accelerators
kinetics
nonlinear optics
refraction
electromagnetic radiation
fusion
asymmetry
color
physics
shift
energy

Keywords

  • relativistic ionization fronts
  • electron acceleration
  • electromagnetic radiation
  • plasma waves
  • pulse
  • beams
  • propagation

Cite this

Murphy, C. D., Trines, R., Vieira, J., Reitsma, A. J. W., Bingham, R., Collier, J. L., ... Gallacher, J. G. (2006). Evidence of photon acceleration by laser wake fields. Physics of Plasmas, 13(3), 033108-1-033108-8. https://doi.org/10.1063/1.2178650
Murphy, C.D. ; Trines, R. ; Vieira, J. ; Reitsma, A.J.W. ; Bingham, R. ; Collier, J.L. ; Divall, E.J. ; Foster, P.S. ; Viskup, R. ; Jaroszynski, D.A. ; Gallacher, J.G. / Evidence of photon acceleration by laser wake fields. In: Physics of Plasmas. 2006 ; Vol. 13, No. 3. pp. 033108-1-033108-8.
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Murphy, CD, Trines, R, Vieira, J, Reitsma, AJW, Bingham, R, Collier, JL, Divall, EJ, Foster, PS, Viskup, R, Jaroszynski, DA & Gallacher, JG 2006, 'Evidence of photon acceleration by laser wake fields', Physics of Plasmas, vol. 13, no. 3, pp. 033108-1-033108-8. https://doi.org/10.1063/1.2178650

Evidence of photon acceleration by laser wake fields. / Murphy, C.D.; Trines, R.; Vieira, J.; Reitsma, A.J.W.; Bingham, R.; Collier, J.L.; Divall, E.J.; Foster, P.S.; Viskup, R.; Jaroszynski, D.A.; Gallacher, J.G.

In: Physics of Plasmas, Vol. 13, No. 3, 03.2006, p. 033108-1-033108-8.

Research output: Contribution to journalArticle

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T1 - Evidence of photon acceleration by laser wake fields

AU - Murphy, C.D.

AU - Trines, R.

AU - Vieira, J.

AU - Reitsma, A.J.W.

AU - Bingham, R.

AU - Collier, J.L.

AU - Divall, E.J.

AU - Foster, P.S.

AU - Viskup, R.

AU - Jaroszynski, D.A.

AU - Gallacher, J.G.

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AB - Photon acceleration is the phenomenon whereby a light wave changes color when propagating through a medium whose index of refraction changes in time. This concept can be used to describe the spectral changes experienced by electromagnetic waves when they propagate in spatially and temporally varying plasmas. In this paper the detection of a large-amplitude laser-driven wake field is reported for the first time, demonstrating photon acceleration. Several features characteristic of photon acceleration in wake fields, such as splitting of the main spectral peak and asymmetries between the blueshift and redshift for large shifts, have been observed. The experiment is modeled using both a novel photon-kinetic code and a three-dimensional particle-in-cell code. In addition to the wide-ranging applications in the field of compact particle accelerators, the concept of wave kinetics can be applied to understanding phenomena in nonlinear optics, space physics, and fusion energy research.

KW - relativistic ionization fronts

KW - electron acceleration

KW - electromagnetic radiation

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KW - beams

KW - propagation

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Murphy CD, Trines R, Vieira J, Reitsma AJW, Bingham R, Collier JL et al. Evidence of photon acceleration by laser wake fields. Physics of Plasmas. 2006 Mar;13(3):033108-1-033108-8. https://doi.org/10.1063/1.2178650