Efficient laser action from 1,3,5,7,8-pentamethylpyrromethene-BF2 complex and its disodium 2,6-disulfonate derivative

Efficient lasr action was observed under flashlamp excitation at 546 nm from 1,3,5,7,8-pentamethylpyrromethene-BF2 complex (PMP-BF2), dissolved in ethanol. This new laser dye lased about 300 percent more efficiently than coumarin 545. The fluorescence, absorption (S-S) and triplet-triplet absorption...

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Bibliographic Details
Published in:Optics communications 1989-04, Vol.70 (5), p.425-427
Main Authors: PAVLOPOULOS, T. G, SHAH, M, BOYER, J. H
Format: Article
Language:English
Subjects:
Dye lasers
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Lasers
Optics
Physics
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Summary:Efficient lasr action was observed under flashlamp excitation at 546 nm from 1,3,5,7,8-pentamethylpyrromethene-BF2 complex (PMP-BF2), dissolved in ethanol. This new laser dye lased about 300 percent more efficiently than coumarin 545. The fluorescence, absorption (S-S) and triplet-triplet absorption spectra of PMP-BF2 were also recorded. To achieve greater water solubility the disodium 2,6-disulfonate derivative (PMPDS-BF2) was prepapred. PMPDS-BF2 lases about 3/4 as efficiently as PMP-BF2 when dissolved in water and showed some photoinstability; however, in methanol it was highly resistant to photodegradation. (Author)
ISSN:0030-4018
1873-0310
DOI:10.1016/0030-4018(89)90144-2