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Proceedings Paper

Growth and spectroscopic investigations of new crystal Er3+,Ce3+:NaLa(MoO4)2 promising for 1.5 μm solid-state lasers
Author(s): K. A. Subbotin; D. A. Lis; E. Sani; A. Toncelli; M. Tonelli; V. A. Smirnov; E. V. Zharikov
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Paper Abstract

Scheelite-like disordered double sodium-lanthanum molybdate NaLa(MoO4)2 single crystals co-doped with Er3+ and different concentrations of Ce3+ have been grown by Czochralski technique. The 300K spectroscopic properties of the excited states 4S3/2, 4I11/2 and 4I13/2 of Er3+ ions in grown crystals as a function of Cerium concentration have been investigated. The lifetime of 4I11/2 have been found to reduce from 130 μs in the solely Er-doped sample to approximately 3.5 μs, when the concentration of Ce reaches 50 at. %. At the same time the lifetime of 4I13/2 level at 300 K remains unchanged (3.7 ms) up to the concentration of Ce in crystal equal to 10 at. %, and reduces by less than 30% (2.6 ms) in the 50 at. % Ce co-doped sample. This result looks very promising from point of view of obtaining low-threshold 1.5 μm laser oscillation.

Paper Details

Date Published: 9 June 2006
PDF: 11 pages
Proc. SPIE 6258, ICONO 2005: Novel Photonics Materials: Physics and Optical Diagnostics of Nanostructures, 625805 (9 June 2006); doi: 10.1117/12.677044
Show Author Affiliations
K. A. Subbotin, General Physics Institute (Russia)
D. A. Lis, General Physics Institute (Russia)
E. Sani, Univ. di Pisa (Italy)
A. Toncelli, Univ. di Pisa (Italy)
M. Tonelli, Univ. di Pisa (Italy)
V. A. Smirnov, General Physics Institute (Russia)
E. V. Zharikov, D. Mendeleyev Univ. of Chemical Technology of Russia (Russia)

Published in SPIE Proceedings Vol. 6258:
ICONO 2005: Novel Photonics Materials: Physics and Optical Diagnostics of Nanostructures
Valentin Dmitriev; Vladimir Shalaev; Vladimir Shuvalov; Nikolay Zheludev, Editor(s)

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