Power law decay of harmonic spectra in ultrarelativistic laser-plasma interactions
- Centre for Theoretical Physics, University of Essex, Colchester CO4 3SQ (United Kingdom)
- Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, Mexico 11801, Distrito Federal (Mexico)
Particle-in-cell simulations have been used to explore the transition from the m{sup -8/3} decay in the power emitted by high harmonics to a regime for which the harmonic power P{sub m{approx}}m{sup -p}, where m denotes the harmonic number and p=5/3 or, less commonly, p=4/3. The deviation from the p=8/3 spectrum is interpreted as a consequence of the degree to which emission at the plasma frequency and its harmonics contribute to the spectrum. The research reported here explores conditions under which these deviations arise.
- OSTI ID:
- 21432196
- Journal Information:
- Physics of Plasmas, Vol. 17, Issue 8; Other Information: DOI: 10.1063/1.3480106; (c) 2010 American Institute of Physics; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Anomalies in Universal Intensity Scaling in Ultrarelativistic Laser-Plasma Interactions
SWEEPING AWAY THE MYSTERIES OF DUSTY CONTINUOUS WINDS IN ACTIVE GALACTIC NUCLEI
Theory of high-order harmonic generation in relativistic laser interaction with overdense plasma
Journal Article
·
Fri Sep 19 00:00:00 EDT 2008
· Physical Review Letters
·
OSTI ID:21432196
SWEEPING AWAY THE MYSTERIES OF DUSTY CONTINUOUS WINDS IN ACTIVE GALACTIC NUCLEI
Journal Article
·
Tue Apr 10 00:00:00 EDT 2012
· Astrophysical Journal
·
OSTI ID:21432196
Theory of high-order harmonic generation in relativistic laser interaction with overdense plasma
Journal Article
·
Sun Oct 15 00:00:00 EDT 2006
· Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
·
OSTI ID:21432196