Back to Search
Start Over
Brunel-Dominated Proton Acceleration with a Few-Cycle Laser Pulse
- Source :
- Physical Review Letters, Physical Review Letters, 2012, 108 (7), pp.075004. ⟨10.1103/PhysRevLett.108.075004⟩, Physical Review Letters, American Physical Society, 2012, 108 (7), pp.075004. ⟨10.1103/PhysRevLett.108.075004⟩
- Publication Year :
- 2012
- Publisher :
- HAL CCSD, 2012.
-
Abstract
- International audience; Experimental measurements of backward accelerated protons are presented. The beam is produced when an ultrashort (5 fs) laser pulse, delivered by a kHz laser system, with a high temporal contrast (10 8), interacts with a thick solid target. Under these conditions, proton cutoff energy dependence with laser parameters, such as pulse energy, polarization (from p to s), and pulse duration (from 5 to 500 fs), is studied. Theoretical model and two-dimensional particle-in-cell simulations, in good agreement with a large set of experimental results, indicate that proton acceleration is directly driven by Brunel electrons, in contrast to conventional target normal sheath acceleration that relies on electron thermal pressure.
- Subjects :
- Physics
Proton
General Physics and Astronomy
Equations of motion
Pulse duration
Plasma
Electron
Laser
Polarization (waves)
7. Clean energy
01 natural sciences
010305 fluids & plasmas
law.invention
law
[PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph]
[PHYS.PHYS.PHYS-PLASM-PH] Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph]
0103 physical sciences
Thermal
Physics::Accelerator Physics
Atomic physics
010306 general physics
Subjects
Details
- Language :
- English
- ISSN :
- 00319007 and 10797114
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters, Physical Review Letters, 2012, 108 (7), pp.075004. ⟨10.1103/PhysRevLett.108.075004⟩, Physical Review Letters, American Physical Society, 2012, 108 (7), pp.075004. ⟨10.1103/PhysRevLett.108.075004⟩
- Accession number :
- edsair.doi.dedup.....f4bfc345a80bbc7ee3ada8edd3c78163