Influence of Coumarin Dyes on the Laser Performance of Pyrromethene and Perylene Dyes Co-Doped into ORMOSILs

Hua Rong; Chun Fang Ye; Yu Yang; Guo Dong Qian; Zhi Yu Wang; Min Quan Wang

doi:10.4028/www.scientific.net/KEM.336-338.574

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 336-338Influence of Coumarin Dyes on the Laser...

Influence of Coumarin Dyes on the Laser Performance of Pyrromethene and Perylene Dyes Co-Doped into ORMOSILs

Abstract:

Laser dyes perylene red (p-red) or pyrromethene 567 (p567) were co-doped with coumarin 440 (C440) or coumarin 500 (C500) into MTES- and VTES-derived organically modified silicates (ORMOSILs) by sol-gel process. The effects of coumarin dye concentration on the laser performances of p-red and p567 were investigated. The results from laser efficiency measurements illustrated that at optimized coumarin concentration, the slope efficiency of co-doped p-red increased by a factor of 2 while that of co-doped p567 increased marginally. It was also found that by co-doping coumarin, the laser wavelength of p-red blue shifted and the laser thresholds for p567 and p-red could be reduced. The energy transfer mechanisms involved were also discussed.

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Key Engineering Materials (Volumes 336-338)

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574-576

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https://doi.org/10.4028/www.scientific.net/KEM.336-338.574

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April 2007

Authors:

Hua Rong, Chun Fang Ye, Yu Yang, Guo Dong Qian, Zhi Yu Wang, Min Quan Wang

Keywords:

Laser Dyes, Ormosils, Slope Efficiency

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