lasing

https://doi.org/10.1351/goldbook.L03479
The process of light amplification by stimulated emission of radiation.
See: laser
Source:
PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2251 (https://doi.org/10.1351/pac199668122223)