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Phys. Rev. A 78, 043804 (2008) [4 pages]

Cross compression of light bullets by two-color cofilamentation

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Pierre Béjot1,*, Jérome Kasparian1,2, and Jean-Pierre Wolf1
1GAP-Biophotonics, Université de Genève, 20 rue de l’Ecole de Médecine, 1211 Geneva 4, Switzerland
2Université Lyon 1, CNRS, LASIM UMR 5579, bâtiment A. Kastler, 43 Boulevard du 11 novembre 1918, F-69622 Villeurbanne Cedex, France

Received 14 April 2008; published 2 October 2008

The cofilamentation of two ultrashort laser pulses at 800 and 400 nm in argon is numerically shown to counteract their temporal splitting. The output pulses are as short as 15 and 6.5 fs, respectively, without any postprocess compression or stringent alignment. The simultaneous generation of two sub-millijoule (160 and 15 μJ, respectively) sub-six-cycle pulses at ω and 2ω is of particular interest for attosecond science.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.78.043804
DOI:
10.1103/PhysRevA.78.043804
PACS:
42.65.Tg

*pierre.bejot@unige.ch