Chemical stabilization of the coumarin 1 dye laser

Journal Article · Sat Jan 15 00:00:00 EST 1983 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.93869· OSTI ID:6651388

von Trebra, R J; Koch, T H

The chemical stabilization of coumarin 1, 7-diethylamino-4-methylcoumarin, in a nitrogen laser pumped dye laser and coumarin 311, 7-dimethylamino-4-methylcoumarin, under cw conditions with sulfur-free radical chain transfer agents, are described. The mechanism for stabilization involves encounter of triplet coumarin and ground state coumarin with subsequent radical formation and radical disproportionation catalyzed by the chain transfer agents. The output of the coumarin 1 dye laser decreased 10% when the dye solution was stabilized with cysteine hydrochloride over a 12-h period. The output of the unstabilized dye laser decreased 50% during a similar period of operation.

• Research Organization: Chemistry Department, University of Colorado, Boulder, Colorado 80309
• OSTI ID: 6651388
• Journal Information: Appl. Phys. Lett.; (United States), Vol. 42:2
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DYE LASERS
STABILIZATION
CATALYSIS
CHEMICAL REACTIONS
COUMARIN
CYSTEINE
ENERGY LEVELS
EXPERIMENTAL DATA
GAS LASERS
NITROGEN
OPTICAL PUMPING
RADICALS
AMINO ACIDS
CARBOXYLIC ACIDS
DATA
ELEMENTS
ESTERS
HETEROCYCLIC COMPOUNDS
INFORMATION
LACTONES
LASERS
LIQUID LASERS
NONMETALS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PUMPING
PYRANS
THIOLS
420300* - Engineering- Lasers- (-1989)