A source of pulsed semi-coherent superradiance mainly around 337 nm. The lasing species is molecular nitrogen.
See: gas lasers
Source:
PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2256 (https://doi.org/10.1351/pac199668122223)