Rate constants of quenching and vibrational relaxation in the OH(A(2) Sigma(+), upsilon=0, 1), manifold with various colliders

Laser induced fluorescence is intensively used for the detection of OH in many atmospheric pressure discharge devices. At this pressure, a quantitative knowledge of the collision phenomena in the upper excited state is critical. Here we report the measurement at T = 300 K of a set of rate constants of electronic quenching and vibrational relaxation of the OH(A(2) Sigma(+), upsilon' = 0, 1) electronic state, by collision with N-2, O-2, H2O, CO2, CO, H-2, D-2, CH4, C2H2, C2H4, C2H6. These are the main gases in applications like plasma medicine, hydrocarbons reforming and CO2 conversion. Available literature data are revisited, and new data are added, mostly relevant to upsilon' = 1 quenching and vibrational relaxation.