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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 16 — Aug. 15, 2013
  • pp: 3194–3197

Mid-infrared laser filamentation in molecular gases

D. Kartashov, S. Ališauskas, A. Pugžlys, A. Voronin, A. Zheltikov, M. Petrarca, P. Béjot, J. Kasparian, J.-P. Wolf, and A. Baltuška  »View Author Affiliations


Optics Letters, Vol. 38, Issue 16, pp. 3194-3197 (2013)
http://dx.doi.org/10.1364/OL.38.003194


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Abstract

We observed the filamentation of mid-infrared ultrashort laser pulses (3.9 μm, 80 fs) in molecular gases. It efficiently generates a broadband supercontinuum over two octaves in the 2.5–6 μm spectral range, with a red-shift up to 500 nm due to the Raman effect, which dominates over the blue shift induced by self-steepening and the gas ionization. As a result, the conversion efficiency into the Stokes region (4.3–6 μm) 65% is demonstrated.

© 2013 Optical Society of America

OCIS Codes
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
(320.7120) Ultrafast optics : Ultrafast phenomena
(320.6629) Ultrafast optics : Supercontinuum generation

ToC Category:
Nonlinear Optics

History
Original Manuscript: June 14, 2013
Revised Manuscript: July 11, 2013
Manuscript Accepted: July 13, 2013
Published: August 15, 2013

Citation
D. Kartashov, S. Ališauskas, A. Pugžlys, A. Voronin, A. Zheltikov, M. Petrarca, P. Béjot, J. Kasparian, J.-P. Wolf, and A. Baltuška, "Mid-infrared laser filamentation in molecular gases," Opt. Lett. 38, 3194-3197 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-16-3194


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