Growth and spectroscopic studies of NaLa(MoO4)2:Tm3+ crystals: A new promising laser material

Single crystals of scheelite-like disordered double molybdate NaLa(MoO 4 ) 2 doped with thulium ions with dopant concentrations of 3.0 × 10 19 and 1.2 × 10 20 cm −3 are grown by the Czochralski method. Spectral and luminescent studies of crystals grown are performed in wavelength ranges of 800 nm (t...

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Bibliographic Details
Published in:Optics and spectroscopy 2008-10, Vol.105 (4), p.538-546
Main Authors: Voron’ko, Yu. K., Zharikov, E. V., Lis, D. A., Popov, A. V., Smirnov, V. A., Subbotin, K. A., Khromov, M. N., Voronov, V. V.
Format: Article
Language:English
Subjects:
Condensed-Matter Spectroscopy
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
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Summary:Single crystals of scheelite-like disordered double molybdate NaLa(MoO 4 ) 2 doped with thulium ions with dopant concentrations of 3.0 × 10 19 and 1.2 × 10 20 cm −3 are grown by the Czochralski method. Spectral and luminescent studies of crystals grown are performed in wavelength ranges of 800 nm (the transitions 3 H 6 ↔ 3 H 4 ) and 2 μm (the transitions 3 H 6 ↔ 3 F 4 ), including the measurements of the polarized absorption and luminescence spectra of these crystals and the decay kinetics of their excited states. A model that satisfactorily describes the decay kinetics of the luminescence from the 3 H 4 level taking into account cross-relaxation interactions is proposed. The prospects for the use of these crystals as active media in two-micrometer solid-state lasers are discussed.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X08100081