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Mid-infrared laser filamentation in molecular gases

Kartashov, D.
Ališauskas, S.
Pugžlys, A.
Voronin, A.
Zheltikov, A.
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Published in Optics Letters. 2013, vol. 38, no. 16, p. 3194
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
Keywords Supercontinuum generationUltrafast nonlinear opticsUltrafast phenomena.
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KARTASHOV, D. et al. Mid-infrared laser filamentation in molecular gases. In: Optics Letters, 2013, vol. 38, n° 16, p. 3194. https://archive-ouverte.unige.ch/unige:37061

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Deposited on : 2014-06-03

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