Harmonic generation due to plasma effects in a gas undergoing multiphoton ionization in the high-intensity limit
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- 1 April 1990
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America B
- Vol. 7 (4) , 521-526
Abstract
In cases in which the ponderomotive energy is much larger than the ionization energy, which correspond to the highintensity limit or to the low-frequency limit, harmonic generation in gases near the ionization threshold can be understood from a plasma-physics point of view. Multiphoton ionization, which can be described by using the dc tunneling limit, takes place in a time interval localized around the maximum of the electric field. The plasma current thus generated varies on the same fast time scale and is responsible for harmonic generation. A model using those properties that has been developed shows the presence of a large number of odd harmonics.Keywords
This publication has 8 references indexed in Scilit:
- Cold-plasma production for recombination extreme-ultraviolet lasers by optical-field-induced ionizationJournal of the Optical Society of America B, 1989
- Above-threshold ionization in the long-wavelength limitPhysical Review Letters, 1989
- Nonlinear Light Scattering Accompanying Multiphoton IonizationPhysical Review Letters, 1989
- Calculations of Multiple-Harmonic Conversion of 1064-nm Radiation in XePhysical Review Letters, 1989
- Multiple-harmonic conversion of 1064 nm radiation in rare gasesJournal of Physics B: Atomic, Molecular and Optical Physics, 1988
- Studies of multiphoton production of vacuum-ultraviolet radiation in the rare gasesJournal of the Optical Society of America B, 1987
- Second-harmonic photons from the interaction of free electrons with intense laser radiationPhysical Review A, 1983
- Absorbing boundary condition and budden turning point technique for electromagnetic plasma simulationsJournal of Computational Physics, 1981