title: Rovibrational hybrid fs/ps CARS using a volume Bragg grating for N₂ thermometry.
abstract: Coherent anti-Stokes Raman scattering (CARS) spectra of N2 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.
authors.forename: M
authors.initials: M
authors.lastname: Scherman
authors.forename: M
authors.initials: M
authors.lastname: Nafa
authors.forename: T
authors.initials: T
authors.lastname: Schmid
authors.forename: A
authors.initials: A
authors.lastname: Godard
authors.forename: A
authors.initials: A
authors.lastname: Bresson
authors.forename: B
authors.initials: B
authors.lastname: Attal-Tretout
authors.forename: P
authors.initials: P
authors.lastname: Joubert
mesh_terms: D000388:Air; D007834:Lasers; D009584:Nitrogen; D012399:Rotation; D013059:Spectrum Analysis, Raman / Q000379:methods*; D013696:Temperature; D062125:Thermometry / Q000379:methods*; D013997:Time Factors; D014732:Vibration
chemical_list: D009584:Nitrogen