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TitleEfficient, high photostability, high brightness, co-polymer solid state dye lasers
Publication TypeJournal Article
Year of Publication1999
AuthorsGiffin, S.M., Wadsworth W.J., McKinnie I.T., Woolhouse A.D., Smith G.J., and Haskell T.G.
JournalJournal of Modern Optics
Pagination1941 - 1945
Date Published1999
ISSN09500340 (ISSN)
KeywordsAdditives, Copolymers, Dimethylsulphoxide, Dye lasers, Efficiency, Ethanol, Hydroxyethylmethacrylate, Modified methylmethacrylate, Optical frequency conversion, Optical properties, Optical resonators, Photostability, Solid state dye lasers, Solid state lasers
AbstractWe report an investigation of the laser beam quality, efficiency and photostability of rhodamine 590 solid state dye lasers with hosts based upon 2-hydroxyethylmethacrylate and methylmethacrylate P(HEMA:MMA) copolymers and modified methylmethacrylate (MPMMA) polymers with ethanol and dimethylsulphoxide additives. Highest efficiencies were obtained with MPMMA, with slope efficiencies of up to 44% (corresponding to 61% optical-optical conversion) measured for ethanolic MPMMA. P(HEMA:MMA) hosts gave superior photostability, with the highest normalized photostability of 240 GJ mol-1 obtained for a P(HEMA:MMA) 1:1 rod. A simple resonator has been used to compensate the effects of thermal lensing and pump mode-mismatch, resulting in optimized beam quality for MPMMA lasers.

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