Ion Production Enhancement by Rear-Focusing and Prepulse in Ultrashort-Pulse Laser Interaction with Foil Targets

Journal Article · Tue Dec 07 00:00:00 EST 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1842630· OSTI ID:20655292

Wada, Yoshio; Shigemoto, Yasuo; Ogata, Atsushi ^[1]

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1. Department of Quantum Matter, Graduate School of Advanced Sciences of Matter, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8530 (Japan)

It was found that the maximum ion energy produced in ultrashort-pulse laser interaction with foil targets is enhanced by a factor of five when the target is positioned before the focal point of the laser and the laser is accompanied by prepulses. A model is proposed in which the prepulse ablates the surface of the target. The resultant neutral gas guides the head of the main pulse by the Kerr effect. This finding opens up the possibility of MeV proton production by a TW-class laser.

• OSTI ID: 20655292
• Journal Information: AIP Conference Proceedings, Vol. 737, Issue 1; Conference: 11. advanced accelerator concepts workshop, Stony Brook, NY (United States), 21-26 Jun 2004; Other Information: DOI: 10.1063/1.1842630; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABLATION
FOCUSING
ION SOURCES
KERR EFFECT
LASERS
PROTON BEAMS
PULSES