Eur. Phys. J. Appl. Phys.
Volume 29, Number 1, January 2005
|Page(s)||55 - 64|
|Section||Imaging, Microscopy and Spectroscopy|
|Published online||30 August 2004|
Spectroscopic study of floating zone technique-grown Nd3+-doped CaMoO4
Depto de Física, Universidade Estadual de Mato Grosso do Sul,
Cidade Universitária de Dourados, Rodovia Dourados/Itahum Km 12 Zona
Rural, CP 351, CEP 79804-970, Dourados, MS, Brasil
2 Depto de Física, Universidad de Santiago de Chile, 7254758, Santiago, Chile
3 Instituto de Física de São Carlos, Departamento de Física e Ciência dos Materiais, Universidade de São Paulo, CP 369, CEP 13560-970, São Carlos, SP, Brasil
4 Laboratoire de Physico-Chimie des Matériaux Luminescents, Université Lyon 1, UMR 5620 du CNRS, 69622 Villeurbanne, France
Corresponding author: firstname.lastname@example.org
Revised: 26 May 2004
Accepted: 15 June 2004
Published online: 30 August 2004
Optical spectroscopy studies of Nd3+-doped scheelite calcium molybdate (CaMoO4) single crystal grown by a floating zone-like technique was performed using Judd-Ofelt analysis, besides luminescence data and lifetime measurements in the visible and near infrared domains. The excited state absorption in cross section units of this material was measured by two different methods for all expected infrared emission. By using calculated intensity parameters (t=2, 4, 6), it were determined branching ratios, emission cross-sections, and lifetimes for all related transitions. The observed single excited state absorption calibrated in absorption cross-section units was found too small to disturb the laser efficiency in the 1030–1100 nm spectral range. A comparison of main spectroscopic parameters of this material with those of other Nd3+-doped crystals is presented.
PACS: 39.30.+w – Spectroscopic techniques / 42.70.Hj – Laser materials / 78.55.-m – Photoluminescence, properties and materials
© EDP Sciences, 2005
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