laser

https://doi.org/10.1351/goldbook.L03459
A source of @UT07492@, @VT07496@, or @IT07399@ radiation which produces light amplification by @S06015@ of radiation from which the acronym is derived. The light emitted is coherent except for @S06145@ emission. The essential elements of a laser are: 1, an @A00106@; 2, a pumping process to make a @P04759@; and 3, suitable geometry of optical feedback elements. The @A00106@ consists of a host material (gas, liquid or solid) containing an @A00110@. .
See:
argon ion laser
,
atomic laser
,
carbon dioxide laser
,
chemical laser
,
copper vapour laser
,
crystal laser
,
diode laser
,
dye laser
,
excimer laser
,
free electron laser
,
free-running laser
,
gas laser
,
glass laser
,
helium–cadmium laser
,
helium–neon laser
,
ion laser
,
krypton ion laser
,
mode-locked laser
,
molecular laser
,
neodymium laser
,
nitrogen laser
,
organic dye laser
,
Q-switched laser
,
ruby laser
,
solid state lasers
See also:
lasing
Sources:
PAC, 1995, 67, 1913. (Nomenclature, symbols, units, and their usage in spectrochemical analysis-XV. Laser-based molecular spectroscopy for chemical analysis - laser fundamentals (IUPAC Recommendations 1995)) on page 1915 [Terms] [Paper]
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2251 [Terms] [Paper]