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Spectral analysis of Pr3+ & TM3+ ions doped fluoro- phospho-borate glasses

Reddy, B Sudhakar and Buddhudu, S and Rao, SRK and Babu, P Naresh (2008) Spectral analysis of Pr3+ & TM3+ ions doped fluoro- phospho-borate glasses. In: Journal of Optoelectronics and Advanced Materials, 10 (10). pp. 2771-2776.

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Abstract

Optical analysis of (0.2mol %) Pr3+&Tm3+ ions doped fluoro-phospho-borate glasses have been reported in the following glass compositions: 69.8 B2O3 – 10 P2O5 – 10(ZnO/CdO/TeO2) – 10 AlF3 /10LiF Measured absorption spectra of Pr3+: fluoro-phospho-borate glasses have shown eight absorption bands at 443, 469, 481, 589 , 1008, 1419, 1523 and 1930 nm which correspond to the transitions 3H4 à3P2, 3P1, 3P0, 1D2, 1G4,3F4, 3F3 and 3F2 respectively. Absorption spectra of Tm3+: glasses have revealed five absorption bands at 466, 685, 790, 1206 and 1644 nm which belong to the transitions 3H6à1G4, 3F3, 3H4, 3H5 and 3F4 respectively. Pr3+: glasses, with an excitation at 442nm (3H4 à3P2), a orange-red emission at 600 nm (1D2à 3H4) has been observed. In the case of Tm3+: glasses, upon excitation with 355nm (3H6à1D2), blue emissions at 452 nm (1D2à3F4) and at 476 nm (1G4à3H6) are observed. From the measured NIR emission spectra of Pr3+: fluoro-phospho-borate glasses, an NIR emission at 1354nm (1G4à3H5) and form Tm3+: glasses, an NIR emission (3F4à3H6) at 1809 nm are observed with an Ar+ laser (514.5 nm) as the excitation source.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to National Institute of Research & Development for Optoelectronics, Romania.
Keywords: Pr3+ and Tm3+;Glasses;Spectral analysis;B2O3 - P2O3 - ZnO CdO TeO2-AlF3 glasses.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 06 Nov 2009 03:41
Last Modified: 19 Sep 2010 04:57
URI: http://eprints.iisc.ernet.in/id/eprint/17536

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