Laser-accelerated protons with energy-dependent beam direction

F. Lindau, O. Lundh, A. Persson, P. McKenna, K. Osvay, D. Batani, C. G. Wahlström

Research output: Contribution to journalArticle

94 Citations (Scopus)

Abstract

The spatial distribution of protons, accelerated by intense femtosecond laser pulses interacting with thin target foils under oblique irradiation are investigated. Under certain conditions, the proton beams are directed away from the target normal. This deviation is towards the laser forward direction, with an angle that increases with the level and duration of the amplified spontaneous emission pedestal before the main laser pulse. In addition, for a given laser pulse, this beam deviation increases with proton energy. The observations are discussed in terms of different electron acceleration mechanisms and target normal sheath acceleration, in combination with a laser-controllable shock wave locally deforming the target rear surface.

Original languageEnglish
Article number175002
JournalPhysical Review Letters
Volume95
Issue number17
DOIs
Publication statusPublished - Oct 21 2005

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protons
lasers
pulses
energy
deviation
electron acceleration
proton energy
proton beams
sheaths
spontaneous emission
shock waves
foils
spatial distribution
irradiation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Lindau, F., Lundh, O., Persson, A., McKenna, P., Osvay, K., Batani, D., & Wahlström, C. G. (2005). Laser-accelerated protons with energy-dependent beam direction. Physical Review Letters, 95(17), [175002]. https://doi.org/10.1103/PhysRevLett.95.175002

Laser-accelerated protons with energy-dependent beam direction. / Lindau, F.; Lundh, O.; Persson, A.; McKenna, P.; Osvay, K.; Batani, D.; Wahlström, C. G.

In: Physical Review Letters, Vol. 95, No. 17, 175002, 21.10.2005.

Research output: Contribution to journalArticle

Lindau, F, Lundh, O, Persson, A, McKenna, P, Osvay, K, Batani, D & Wahlström, CG 2005, 'Laser-accelerated protons with energy-dependent beam direction', Physical Review Letters, vol. 95, no. 17, 175002. https://doi.org/10.1103/PhysRevLett.95.175002
Lindau, F. ; Lundh, O. ; Persson, A. ; McKenna, P. ; Osvay, K. ; Batani, D. ; Wahlström, C. G. / Laser-accelerated protons with energy-dependent beam direction. In: Physical Review Letters. 2005 ; Vol. 95, No. 17.
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