Rovibrational hybrid fs/ps CARS using a volume Bragg grating for N-2 thermometry

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TitreRovibrational hybrid fs/ps CARS using a volume Bragg grating for N-2 thermometry
Type de publicationJournal Article
Year of Publication2016
AuteursScherman M., Nafa M., Schmid T., Godard A., Bresson A., Attal-Tretout B., Joubert P.
JournalOPTICS LETTERS
Volume41
Pagination488-491
Date PublishedFEB 1
Type of ArticleArticle
ISSN0146-9592
Résumé

Coherent anti-Stokes Raman scattering (CARS) spectra of N-2 in the hybrid femtosecond/picosecond regime have been recorded with 0.7 cm(-1) resolution. The Q-branch rovibrational structure has been resolved, making it suitable for gas-phase simultaneous rotational and vibrational thermometry applications. Resolving this spectral structure requires synchronization of a narrowband picosecond probe pulse with a broadband femtosecond pair of pump and Stokes pulses. It is achieved using a single femtosecond ytterbium-laser source and a volume Bragg grating in a compact experimental arrangement. (C) 2016 Optical Society of America

DOI10.1364/OL.41.000488