Coumarin 6 as the active medium of a dye vapor laser with wide-band optical pumping and specific characteristics of such lasers

Journal Article · Mon Nov 01 04:00:00 EST 1982 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1982v012n11ABEH006092· OSTI ID:6054763

Trusov, K K

An experimental investigation was made of the efficiency of conversion of flashlamp pump radiation to fluorescence of coumarin 6 at a buffer gas pressure of 0--1 MPa. The lasing dynamics of the flashlamp-pumped vapor of this compound was also studied. It was found that the fluorescence quantum efficiency averaged over the absorption spectrum, which characterized the pump conversion efficiency, was < or =0.3 at a buffer gas pressure of 0--1 MPa. Dependences of and the rate constant for optical bleaching of the dye on the buffer gas pressure were determined. A comparative analysis of the lasing dynamics of coumarin 6 in vapors and in an ether solution showed that the gas phase had a higher lasing threshold (18--20 times higher) and a larger increment of loss growth in the spectral range of lasing (four times higher). It also had a shorter maximum lasing duration (t/sub max/roughly-equal500 nsec).

• Research Organization: P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
• OSTI ID: 6054763
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 12:11; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
BUFFERS
COUMARIN
DYE LASERS
EFFICIENCY
ESTERS
FLUIDS
FLUORESCENCE
GASES
HETEROCYCLIC COMPOUNDS
LACTONES
LASERS
LIQUID LASERS
LUMINESCENCE
MEDIUM PRESSURE
OPTICAL PUMPING
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PRESSURE DEPENDENCE
PUMPING
PYRANS
VAPORS