Chemical stabilization of the coumarin 1 dye laser
Abstract
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.
- Authors:
- Publication Date:
- Research Org.:
- Chemistry Department, University of Colorado, Boulder, Colorado 80309
- OSTI Identifier:
- 6651388
- Resource Type:
- Journal Article
- Journal Name:
- Appl. Phys. Lett.; (United States)
- Additional Journal Information:
- Journal Volume: 42:2
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 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)
Citation Formats
von Trebra, R J, and Koch, T H. Chemical stabilization of the coumarin 1 dye laser. United States: N. p., 1983.
Web. doi:10.1063/1.93869.
von Trebra, R J, & Koch, T H. Chemical stabilization of the coumarin 1 dye laser. United States. https://doi.org/10.1063/1.93869
von Trebra, R J, and Koch, T H. 1983.
"Chemical stabilization of the coumarin 1 dye laser". United States. https://doi.org/10.1063/1.93869.
@article{osti_6651388,
title = {Chemical stabilization of the coumarin 1 dye laser},
author = {von Trebra, R J and Koch, T H},
abstractNote = {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.},
doi = {10.1063/1.93869},
url = {https://www.osti.gov/biblio/6651388},
journal = {Appl. Phys. Lett.; (United States)},
number = ,
volume = 42:2,
place = {United States},
year = {Sat Jan 15 00:00:00 EST 1983},
month = {Sat Jan 15 00:00:00 EST 1983}
}
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