Abstract
We have used a double-resonance-enhanced multiphoton ionization (REMPI) technique to determine the quenching rates for collision-induced electronic transitions (CIETs) from the N2 a1Πg(v = 1) level as a function of the collision partners He, Ar, and nitrogen. The branching ratio from this level to the a‘1Σu-(v = 2 and 1) levels is determined experimentally and found to be in excellent agreement with an empirical model developed previously. This ratio is used to determine state-specific CIET rates from pressure-dependent radiative decay curves using a double-exponential model for collisional deactivation. The rates are determined for each of the collision partners, and the most efficient quenchant is determined to be nitrogen followed by Ar and He. In addition, the propensities for CIET have been observed from the a1Πg(v = 2) level to the a‘1Σu-(v = 3) level as a function of the rare-gas partners. There is a dependence of the propensities on the collision partner, and helium has a smaller ΔJ propensity tha...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
