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Conferences > HRFTS > 1994 > MC > MC8

Defocusing effects in intense field harmonic generation experiments

C de Lisio, R Bruzzese, C Beneduce, S Sorrentino, F Vigilante, S Solimeno, and C Altucci

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Abstract

In harmonic generation experiments carried out at intensities above 1013 W cm-2, the effect of ionisation becomes significant. The presence of free electrons introduces a space-time dependent change of the refractive index of the medium. The important role of the medium ionisation has been recently discussed in ref. 1,2,3 by including in the phase-matching integral the contribution of the electrons to the refractive index.

© 1994 Optical Society of America

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