Abstract : We report the compression of intense, carrier-envelope phase stable mid-IR pulses down to few-cycle duration using an optical filament. A filament in xenon gas is formed by using self-phase stabilized 330 μJ 55 fs pulses at 2 μm produced via difference-frequency generation in a Ti:sapphire-pumped optical parametric amplifier. The ultrabroadband 2 μm carrier-wavelength output is self-compressed below 3 optical cycles and has a 270 μJ pulse energy. The self-locked phase offset of the 2 μm difference-frequency field is preserved after filamentation. This is to our knowledge the first experimental realization of pulse compression in optical filaments at mid-IR wavelengths (λ>0.8 μm).
https://hal-polytechnique.archives-ouvertes.fr/hal-00553198
Contributor : Thuy Le
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Submitted on : Thursday, January 6, 2011 - 4:58:11 PM
Last modification on : Wednesday, August 7, 2019 - 2:34:15 PM
C.P. Hauri, Rodrigo B. Lopez-Martens, C. I. Blaga, K. D. Schultz, J. Cryan, et al.. Intense self-compressed, self-phase-stabilized few-cycle pulses at 2 μm from an optical filament. Optics Letters, Optical Society of America, 2007, 32 (7), pp.868-870. ⟨10.1364/OL.32.000868⟩. ⟨hal-00553198⟩
