Effect of higher protonation on lasing performance of Rhodamine-B in sol-gel glasses |
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Authors: | Aparna V. Deshpande |
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Affiliation: | Department of Physics, University Institute of Chemical Technology, Matunga, Nathalal Parikh Marg, Mumbai-400 019, India |
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Abstract: | Three types of Rhodamine-B (Rh-B) impregnated sol-gel samples (mentioned as type-A, type-B, type-C) were prepared. After studying photophysical properties, the dried samples were subjected to laser study under nitrogen laser pumping in a transverse dye laser cavity. Type-B and type-C samples were found to be lasing, while type-A did not show any lasing action. The photostability study of these samples under nitrogen laser pumping showed that Rhodamine-B was more photostable in type-C sol-gel host than in type-B. These results have been explained by taking into account the molecular changes in Rh-B in the sol-gel host matrix. |
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Keywords: | Absorption Lasers Luminescence Optical spectroscopy Sol-Gels (xerogels) |
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