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Proceedings Paper

The Interaction Of High-Power, Femtosecond Pulses With Gases
Author(s): P B Corkum; Claude Rolland
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Paper Abstract

Multiphoton ionization of xenon with 620 nm pulses is reviewed. Near saturated ionization is observed at 2 x 1013 W/cm2 using 0.9 psec pulses and 6 x 1013 W/cm2 using 90 fsec pulses. These results indicate that atomic systems can be irradiated with very high intensity ultrashort pulses without significant ionization. Below the ionization threshold new nonlinear phenomena, such as continuum generation, can be investigated. We review measurements of continuum generation in gases made with ultrashort pulses. The nonlinearity responsible for self-focusing and self-phase modulation saturates with laser intensity. A diffraction limited input beam has its spatial profile reconstituted after self-focusing.

Paper Details

Date Published: 11 July 1988
PDF: 6 pages
Proc. SPIE 0913, High Intensity Laser-Matter Interactions, (11 July 1988); doi: 10.1117/12.965139
Show Author Affiliations
P B Corkum, National Research Council of Canada (Canada)
Claude Rolland, National Research Council of Canada (Canada)

Published in SPIE Proceedings Vol. 0913:
High Intensity Laser-Matter Interactions
Hector A. Baldis; E. Michael Campbell, Editor(s)

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