Photon Emission by Ions Interacting with Short Intense Laser Pulses

reportActive / Technical Report | Accession Number: ADP015785 | Open PDF

Abstract:

Photon emission by a positive ion exposed to an intense few-cycle TiSapphire laser pulse is studied within the strong field approximation. We find that the magnetic field component of the incident pulse has little effect below 10exp 17 W sq cm peak intensity. However, for more intense pulses it significantly reduces photon emission and changes the plateau structure of the spectra, as compared to the predictions of the dipole approximation, and leads in certain parts of the spectrum to emission in the form of a single attosecond burst of X-ray photons. Results obtained by solving the time-dependent Schrodinger equation for a two dimensional model of atomic hydrogen interacting with an ultrashort high frequency laser pulse are also given for photon emission in the stabilization regime for the case studied, the main effect of the pulses magnetic field is to produce a relatively strong emission at the second harmonic frequency.

Author(s):
Kylstra, N. J. ; Potvliege, R. M. ; Joachain, C. J.
Author Organization(s):
DURHAM UNIV (UNITED KINGDOM) DEPT OF PHYSICS
Descriptive Note:
Conference paper
Supplementary Note:
This article is from ADA426515 The Proceedings of the International Laser Physics Workshop (LPHYS'01) (10th) Held in Moscow, Russia on July 3-7, 2001 (Laser Physics. Volume 12, Number 2)
Annotation:
Reprint: Photon Emission by Ions Interacting with Short Intense Laser Pulses
Pagination:
0006

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
X5
 Subject Terms
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*EMISSION, *PULSED LASERS, *LASER BEAMS, *PHOTONS, *HARMONIC GENERATORS, STABILIZATION, IONS, CATIONS, PEAK VALUES, MAGNETIC FIELDS, TIME DEPENDENCE, HYDROGEN, SAPPHIRE, SPECTRA, DIPOLES, SCHRODINGER EQUATION, SHORT PULSES, ATOMIC STRUCTURE, UNITED KINGDOM
Field(s)/Group(s):
Electrical and Electronic Equipment, Lasers and Masers, Nuclear Physics and Elementary Particle Physics
Keyword(s):
COMPONENT REPORTS, FOREIGN REPORTS
Report Date:
2002 Jan 01
Creation Date:
2004 Oct 20