Index Organic Compounds for Dye Lasers IV

MAEDA, Mitsuo

doi:10.2184/lsj.9.85

Cited by 2 publications

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“…The knowledge of fluorescence quantum efficiency of organic dyes and its concentration dependence are essential for selecting efficient laser media [7]. The fluorescence efficiency for different concentrations of C 47 in chloroform solvent was determined and their values are listed in table (1).…”

Section: -2 Quantum Efficiencymentioning

confidence: 99%

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Study the Spectral Properties of Coumarine -47 Dissolved in Chloroform

Journal¹

2014

Baghdad Sci.J

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The spectral propetties (absorption and fluorescence) of Coumarine-47 laser dye have been studied. This type of laser dye belong the Coumarine family and it has dissolved in chloroform at different concentrations (1x10-5, 5x10-5, and 1x10-4 M) at room temperature. The achieved results have been pointed out to increase in the absorption and fluorescence as the concentration increased which are agreements with Beer – Lambert law. These have been also showed an expansion in the spectral range of absorption and fluorescence with a noticed shift in the direction of longer wavelength (Red-shift) with increasing concentration. The quantum efficiency of the dissolved C47 in chloroform has been computed by using the brevious concentrations and their results are as follows (69%, 63%, and 45%) respectively. The radiative and fluorescence lifetime have been also computed as given (6.47ns, 4.67ns, and 2.06ns) and (4,07ns, 3.22ns, and 1.47ns) respectively.

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Section: -2 Quantum Efficiencymentioning

confidence: 99%

“…The first demonstration of a dye laser, where the active medium was a solution of dye dissolved in solvent, was reported in 1966 by Sorokin and Lankard [1]. Since then, stimulated emission from many classes of organic compounds has been reported.…”

Section: Introductionmentioning

confidence: 99%