Coumarins in the gaseous phase. II. Investigation of stimulated emission from coumarin vapors in the range 470--540 nm

Journal Article · Mon Jun 01 00:00:00 EDT 1981 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1981v011n06ABEH007050· OSTI ID:6019599

Logunov, O A; Startsev, A V; Stoilov, Y Y

An investigation was made of the spectral and time characteristics of lasers utilizing coumarin 7 (C7, C153, C30, 7-diethylamino-3(2'-benzoxazolyl)-coumarin, and C6 vapors mixed with buffer gases (approx.35 atm) and kept at 200 /sup 0/C. The lasing efficiency in the region of 500 nm exceeded 6% and the threshold pump intensities were below 0.3 MW/cm/sup 2/, so that it should be possible to construct efficient cw and pulsed tunable gas lasers emitting in the blue-green part of the spectrum.

• Research Organization: P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
• OSTI ID: 6019599
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 11:6; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
COUMARIN
DYE LASERS
EFFICIENCY
EMISSION
ENERGY-LEVEL TRANSITIONS
ESTERS
FLUIDS
GASES
HETEROCYCLIC COMPOUNDS
LACTONES
LASERS
LIQUID LASERS
OPTICAL PUMPING
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PUMPING
PYRANS
SPECTRA
STIMULATED EMISSION
TIME DEPENDENCE
TUNING
VAPORS