Spontaneous emergence of pulses with constant carrier-envelope phase in femtosecond filamentation

D. Faccio, A. Lotti, M. Kolesik, J. V. Moloney, S. Tzortzakis, A. Couairon, P. Di Trapani

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11 Citations (Scopus)


We study the possibility to obtain high-intensity pulses that maintain a constant Carrier Envelope Phase (CEP) during propagation in dispersive media, i.e. pulses such that the carrier-wave offset with respect to the main intensity peak remains fixed. Our numerical experiments strongly suggest that pulse splitting and X-wave formation within femtosecond laser pulse filamentation leads to the formation of "constant-CEP" within well-defined regions inside the filament. We study the creation of "constant-CEP" pulses in both gasseous and condensed media showing that this is a generic feature of filaments. (C) 2008 Optical Society of America.

Original languageEnglish
Pages (from-to)11103-11114
Number of pages12
JournalOptics Express
Issue number15
Publication statusPublished - 21 Jul 2008

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