Accurate wavelength measurements of the pulsed laser emission from the nitrogen molecule have been made. About one hundred new stimulated emission lines which belong to the first and second positive systems were obtained and identified as to rotational quantum number. The relative intensities of the laser lines in the rotational band spectrum are analyzed. Some characteristics of the oscillations, including the recovery time after the laser pulse, are discussed.
Takahiro Kasuya and David R. Lide, Jr., "Measurements on the Molecular Nitrogen Pulsed Laser," Appl. Opt. 6, 69-80 (1967)