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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 26 — Dec. 22, 2008
  • pp: 21529–21543

Self-compression of 2 µm laser filaments

Luc Bergé  »View Author Affiliations


Optics Express, Vol. 16, Issue 26, pp. 21529-21543 (2008)
http://dx.doi.org/10.1364/OE.16.021529


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Abstract

We numerically study the filamentation of ultrashort laser pulses at 2 µm carrier wavelength in noble gases (argon, xenon) and in air. Compared with filamentation in the near-visible domain (800 nm), mid-infrared optical sources with durations close to a single cycle can be generically produced at various pressures and powers near the self-focusing threshold. The mechanism by which self-compression takes place mainly involves optical self-focusing, pulse steepening and plasma defocusing. On-axis spectra and spectral phases are discussed. Delivering single-cycled pulses at long wavelengths has important applications in the generation of high-order harmonics and isolated attosecond pulses.

© 2008 Optical Society of America

OCIS Codes
(260.5950) Physical optics : Self-focusing
(320.5520) Ultrafast optics : Pulse compression
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Ultrafast Optics

History
Original Manuscript: September 22, 2008
Revised Manuscript: November 7, 2008
Manuscript Accepted: November 7, 2008
Published: December 15, 2008

Citation
Luc Bergé, "Self-compression of 2 μm laser filaments," Opt. Express 16, 21529-21543 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-26-21529


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