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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 16, Iss. 3 — Mar. 1, 1999
  • pp: 407–413

Harmonic generation during the ionization of a thin target irradiated by a strong laser field

Enrique Conejero Jarque and Luis Plaja  »View Author Affiliations


JOSA B, Vol. 16, Issue 3, pp. 407-413 (1999)
http://dx.doi.org/10.1364/JOSAB.16.000407


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Abstract

By means of a particle-in-cell simulation we study the effect of time-dependent tunneling ionization in the harmonics generated during the formation of a plasma when a laser field impinges on a solid slab. The comparison of our results with preionized plasma calculations and with a simple propagation model, in which the dynamics of ionized charges is neglected, shows the crucial role of the ionization even when the ionization time is a relatively small fraction of the pulse duration. The mechanism for which the harmonics are generated owing to ionization is investigated by means of a moving-mirror model extended to take into account the time-dependent reflectivity.

© 1999 Optical Society of America

OCIS Codes
(190.4160) Nonlinear optics : Multiharmonic generation
(260.3230) Physical optics : Ionization
(270.6620) Quantum optics : Strong-field processes
(350.5400) Other areas of optics : Plasmas

Citation
Enrique Conejero Jarque and Luis Plaja, "Harmonic generation during the ionization of a thin target irradiated by a strong laser field," J. Opt. Soc. Am. B 16, 407-413 (1999)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-16-3-407

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