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Título : Environment effects on the lasing photostability of Rhodamine 6G incorporated into organic-inorganic hybrid materials
Autor : Costela, A., Garcia-Moreno, I., Gómez, C., García, Olga, Sastre, Roberto
Fecha de publicación : 2004
Editor: Springer
Resumen: The effect on the lasing photostability of Rhodamine 6G (Rh6G), and the rigidity of a hybrid inorganicorganic matrix by controlled addition of di-, tri- and tetrafunctionalized alkoxides has been evaluated. The dye was incorporated into hybrid matrices of (2-hydroxyethyl methacrylate) (HEMA) or vol/vol copolymers of methyl methacrylate (MMA) and HEMA with different weight proportions of polycondensated dimethyldiethoxysilane (DEOS), methyltriethoxysilane (TRIEOS), and tetraethoxysilane (TEOS). The laser samples were transversaly pumped at 534 nm at 5.5mJ/pulse and up to a 10 Hz repetition rate. The dependence of the laser photostability on organic-inorganic composition, pH of the medium, and thermal treatment of the samples was studied. Good stability, with a drop of the initial laser output of only 13% after 10 000 pump pulses at 10 Hz in a thermally postcured (HEMA-15 wt%TRIEOS) matrix was obtained. Careful control of the synthesis process is required to reach the necessary photostability for a solid-state dye laser based on hybrid matrices to become competitive with liquid dye lasers
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ISSN: 0946-2171
DOI: 10.1007/s00340-004-1418-5
Citación : Applied Physics B 78 : 629–634 (2004)
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