26 October 1989 High-Efficiency Laser Dyes For High-Energy Dye Lasers
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Proceedings Volume 1132, High Power Lasers and Laser Machining Technology; (1989); doi: 10.1117/12.961566
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France
Abstract
A dye laser gain analysis reveals that dye lasers can be upscaled to high energies, provided improved laser dyes are employed. Superior laser dyes were recently discovered in the quasi-aromatic families of syn-dioxabimanes and pyrromethene-BF2 complexes. The representative new dye ,u-bis-(carboethoxy) methylene-syn-(methylene, methyl) bimane lased at 507 nm with 50% greater efficiency than was obtained with Coumarin 30. A similar determination showed 4,4-difluoro-1,3,5,7,8-pentamethy1-4-bora-3a,4a-diaza-s-indacene to lase at 546 nm with about 300% greater efficiency than was obtained from Coumarin 545. These quasi-aromatic systems are readily available and offer desirable properties of stability (photo, thermal, and chemical), solubility, and diminished triplet-triplet absorption in the lasing spectral region.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Theodore G. Pavlopoulos, Joseph H. Boyer, "High-Efficiency Laser Dyes For High-Energy Dye Lasers", Proc. SPIE 1132, High Power Lasers and Laser Machining Technology, (26 October 1989); doi: 10.1117/12.961566; https://doi.org/10.1117/12.961566
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KEYWORDS
Absorption

Luminescence

Dye lasers

Laser applications

Bioalcohols

Rhodamine

Quantum efficiency

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