We report the first generation of femtosecond mid-infrared filaments in argon and nitrogen gases. The new effect of self-focusing suppression in nitrogen and a 350nm-5.5mcm spectral continuum in argon are demonstrated.
© 2012 OSA
D. Kartashov, S. Ališauskas, A. Baltuška, A. A. Voronin, A. Zheltikov, M. Petrarca, P. Bejot, J. Kasparian, and A. Pugzlys, "Filamentation of Few-Cycle Mid-Infrared Pulses in Gases," in Research in Optical Sciences, OSA Technical Digest (Optical Society of America, 2012), paper HW3C.4.
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