Filament-induced visible-to-mid-IR supercontinuum in a ZnSe crystal: Towards multi-octave supercontinuum absorption spectroscopy

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TitreFilament-induced visible-to-mid-IR supercontinuum in a ZnSe crystal: Towards multi-octave supercontinuum absorption spectroscopy
Type de publicationJournal Article
Year of Publication2016
AuteursMouawad O., Bejot P., Billard F., Mathey P., Kibler B., Desevedavy F., Gadret G., Jules J.-C, Faucher O., Smektala E.
JournalOPTICAL MATERIALS
Volume60
Pagination355-358
Date PublishedOCT
Type of ArticleArticle
ISSN0925-3467
Mots-clésInfrared laser sources, Methane sensing, Multifilaments, supercontinuum generation
Résumé

We report on the generation of multiple-octave supercontinuum laser source spanning from 0.5 mu m to 11 mu m induced by multi-filamentation in a ZnSe crystal. The generated supercontinuum is both spatially and spectrally characterized. It is then exploited in a proof-of-principle experiment for methane spectroscopy measurements by means of the supercontinuum absorption spectroscopy technique. The entire absorption spectrum is successfully recorded within the whole spectral bandwidth of the super continuum. Experimental results are in fairly good agreement with the HITRAN database, confirming the reliability and stability over several hours of the generated supercontinuum. (C) 2016 Elsevier B.V. All rights reserved.

DOI10.1016/j.optmat.2016.08.009