“…The results show that the ambient gas will influence the quenching rate greatly. For example, the quenching rate constants of A 2 state are in the order of 10 −10 cm 3 /molecule s with O 2 , CO 2 , N 2 O, SF 6 as ambient gas, while they are in the order of 10 −14 cm 3 /molecule s for the gases of He, Ar, Xe and N 2 [2]. The quenching rate constants of D 2 state for the gas of N 2 is in the order of 10 −10 cm 3 /molecule s. It is much larger than the one of A 2 state.…”