Inhomogeneous broadening of optical transitions in Yb:CaYAlO4
| Autor: | P.O. Petit, Ph. Goldner, Johan Petit, Bruno Viana |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Absorption spectroscopy
Infrared Chemistry Organic Chemistry Analytical chemistry Laser Molecular physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Ion law.invention Inorganic Chemistry law Femtosecond Emission spectrum Electrical and Electronic Engineering Physical and Theoretical Chemistry Homogeneous broadening Spectroscopy |
| Zdroj: | Optical Materials. 30:1093-1097 |
| ISSN: | 0925-3467 |
| DOI: | 10.1016/j.optmat.2007.05.017 |
| Popis: | Yb:CaGdAlO 4 is a promising laser media for femtosecond impulsions in the infrared, because of a broad emission line around 1 μm. This feature is related to the crystal structure where the doping ion, which substitutes Gd 3+ , is located in a disordered environment where Ca 2+ and Gd 3+ are randomly distributed on a same crystallographic site. Since Gd 3+ ions prevent any EPR measurement to be carried out, CaYAlO 4 , which is isostructural to CaGdAlO 4 , has been studied, in the present work. The origin of the broadening of the optical absorption and emission lines has been studied by low temperature optical spectroscopy on CaYAlO 4 . Two families of sites have been highlighted and are related to the broadening of optical transitions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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