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Self-compression of optical laser pulses by filamentation

Abstract : During the propagation of intense femtosecond laser pulses in a transparent medium, pulse shortening can occur without external guiding. Experimental evidence for this effect and a description of its physical origin are presented. Nearly single cycle pulses at 800 nm with an energy of 0.120 mJ can be obtained with excellent beam quality. Carrier envelope offset phase (CEP) stability is conserved or even improved after the nonlinear propagation stage. Prospects for further improvement are discussed.
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André Mysyrowicz, Arnaud Couairon, Ursulla Keller. Self-compression of optical laser pulses by filamentation. New Journal of Physics, Institute of Physics: Open Access Journals, 2008, 10, pp.025023. ⟨10.1088/1367-2630/10/2/025023⟩. ⟨hal-00455018⟩

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