Forward ion acceleration in thin films driven by a high-intensity laser

A. Maksimchuk, S. Gu, K. Flippo, D. Umstadter, A. Yu Bychenkov

Research output: Contribution to journalArticle

644 Citations (Scopus)

Abstract

A collimated beam of fast protons, with energies as high as 1.5 MeV and total number of ≿ 109, confined in a cone angle of 40° ± 10° is observed when a high-intensity high-contrast subpicosecond laser pulse is focused onto a thin foil target. The protons, which appear to originate from impurities on the front side of the target, are accelerated over a region extending into the target and exit out the back side in a direction normal to the target surface. Acceleration field gradients ˜ 10GeV/cm are inferred. The maximum proton energy can be explained by the charge-separation electrostatic-field acceleration due to “vacuum heating.”.

Original languageEnglish (US)
Pages (from-to)4108-4111
Number of pages4
JournalPhysical Review Letters
Volume84
Issue number18
DOIs
StatePublished - Jan 1 2000

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high power lasers
thin films
ions
protons
polarization (charge separation)
proton energy
foils
cones
impurities
gradients
vacuum
heating
electric fields
pulses
lasers
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Forward ion acceleration in thin films driven by a high-intensity laser. / Maksimchuk, A.; Gu, S.; Flippo, K.; Umstadter, D.; Bychenkov, A. Yu.

In: Physical Review Letters, Vol. 84, No. 18, 01.01.2000, p. 4108-4111.

Research output: Contribution to journalArticle

Maksimchuk, A. ; Gu, S. ; Flippo, K. ; Umstadter, D. ; Bychenkov, A. Yu. / Forward ion acceleration in thin films driven by a high-intensity laser. In: Physical Review Letters. 2000 ; Vol. 84, No. 18. pp. 4108-4111.
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