Mid-infrared laser filamentation in molecular gases | Zendy

Daniil Kartashov | Zendy; S. Ališauskas | Zendy; A. Pugžlys | Zendy; A. A. Voronin | Zendy; А. М. Желтиков | Zendy; M. Petrarca | Zendy; Pierre Béjot | Zendy; Jérôme Kasparian | Zendy; JeanPierre Wolf | Zendy; Andrius Baltuška | Zendy

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Mid-infrared laser filamentation in molecular gases

Author(s) -

Daniil Kartashov,

S. Ališauskas,

A. Pugžlys,

A. A. Voronin,

А. М. Желтиков,

M. Petrarca,

Pierre Béjot,

Jérôme Kasparian,

JeanPierre Wolf,

Andrius Baltuška

Publication year - 2013

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.38.003194

Subject(s) - filamentation , supercontinuum , optics , infrared , laser , materials science , ionization , raman spectroscopy , raman scattering , atomic physics , physics , wavelength , photonic crystal fiber , ion , quantum mechanics

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.

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