Interaction of Nitrogen Dioxide by 222 nm Laser

The process of broadband KrCl laser λ rad = 222 nm interaction with nitrogen dioxide in the atmosphere is considered. During the laser pulse, photofragmentation of NO 2 occurs, followed by resonant excitation of several electronic vibrational levels of NO A 2 Ʃ – X 2 П, ν'ν''(2,2) and NO С 2 П – X 2 П, ν'ν''(0,4). The fluorescence intensity of NO A 2 Σ increases with increasing nitrogen pressure due to intermolecular nonradiative energy transfer from the metastable level of N 2 A 3 Σ to the electronic level of NO A 2 Σ.