Assessment of spectroscopic properties of erbium ions in silicate and phosphate glasses after silver exchange
| Jazyk: | English |
|---|---|
| Přístupová URL adresa: | https://explore.openaire.eu/search/publication?articleId=cnr_________::3740036ffc9222033c4b51300c553c60 https://publications.cnr.it/doc/237751 |
| Přírůstkové číslo: | edsair.cnr...........3740036ffc9222033c4b51300c553c60 |
| Autor: | A. Chiasera, M. Ferrari, M. Mattarelli, M. Montagna, S. Pelli, H. Portales, G.C. Righini |
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | International Workshop Photonic And Electronic Materials, Donostia / San Sebastián-Spain, June 14-16, 2004 info:cnr-pdr/source/autori:A. Chiasera, M. Ferrari, M. Mattarelli, M. Montagna, S. Pelli, H. Portales, G.C. Righini/congresso_nome:International Workshop Photonic And Electronic Materials/congresso_luogo:Donostia %2F San Sebastián-Spain/congresso_data:June 14-16, 2004/anno:2004/pagina_da:/pagina_a:/intervallo_pagine |
| Popis: | We present a spectroscopic investigation of Er/Ag co-doped thin plates of silicate and phosphate glasses, with the aim of assessing the effective role of silver as a sensitizer for erbium. The composition of the rare-earth doped silicate glass is (wt%): 66.9 SiO2, 14.4 Na2O, 9.1 CaO, 1,9 Al2O3, 0.9 P2O5, 0.9 K2O, 1.9 Er2O3, 3,9 Yb2O3 and of the phosphate glass one (in mol%): 65 NaPO3, 20 Nb2O5, 15 Ga2O3 (7.5 wt% of Er2O3 was added to the glass). For each type of glass, two plates, with a thickness of 200 ?m, were cut and optically polished. One of these two plates was Ag- exchanged in its full thickness, while the other was kept as reference Additive heat treatments in air at different temperatures were performed on both the silver-exchanged and the silver-free plates. The optical and spectroscopic features of the samples were investigated by photoluminescence measurements in the region of the 4I13/2 --> 4I15/2 transition of the Er3+ ion. The results of excitation in the range from 350 to 750 nm, the decay curves from the 4I13/2 level, and the absorption measurements are reported and discussed. |
| Databáze: | OpenAIRE |
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