Resolved rotation-vibration non-equilibrium with rotational VIPA-CARS. Academic Article uri icon


  • Simultaneous rotational and vibrational temperatures are measured in an N2 plasma with rotational coherent anti-Stokes Raman scattering (CARS) resolved with a virtually imaged phased array (VIPA)-based spectrometer. A VIPA spectrally separates rotational transitions for each vibrational state, allowing vibrational populations to be directly measured. VIPA-CARS is shown to provide more accurate measurements of non-equilibrium temperatures than grating-resolved rotational CARS. The general characteristics, limitations, and potential uses of VIPA-CARS are discussed.

published proceedings

  • Opt Lett

author list (cited authors)

  • Steinmetz, S. A., Chen, T. Y., Goldberg, B. M., Limbach, C. M., & Kliewer, C. J.

complete list of authors

  • Steinmetz, SA||Chen, TY||Goldberg, BM||Limbach, CM||Kliewer, CJ

publication date

  • October 2022