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Two crystallographic sites in erbium-doped fluoride glass by frequency-resolved and site-selective spectroscopies |
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| Authors: | Stephan Guy Laurent Bigot Bernard Jacquier Youping Gao |
| Affiliation: | a Laboratoire de Physico-Chimie des Matériaux Luminescents, Université Lyon 1, UMR-CNRS 5620, Domaine Scientifique de la Doua, 10, rue André-Marie Ampère, 69622 Villeurbanne cedex, France b Laboratoire des Fluorures, Faculté des Sciences, Université du Maine, UMR 6010, avenue Olivier Messiaen, 72085 Le Mans cedex 9, France |
| Abstract: | Erbium-doped PZG fluoride glass (lead-zinc-gallium) has been studied using site-selective spectroscopy associated to frequency-resolved spectroscopy. Possibilities of site-selective emission using frequency-resolved spectroscopy are discussed. The existence of two crystallographic sites is demonstrated and the spectroscopic properties of Er3+ in each site is analyzed. The minority site distribution peaks at high energy at 6575 cm−1, its 4I13/2 lifetime is non-exponential and lower than 5 ms and its ground state spreads over 302 cm−1. The majority site distribution peaks at 6530 cm−1, its 4I13/2 lifetime is 11 ms and its ground state spreads over 333 cm−1. The structural origin of these two sites is discussed. |
| Keywords: | S440 F171 R120 |
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