The spectroscopic investigation of ZnWO4: Yb3+ single crystal

The good quality single crystal ZnWO4:Yb3+ was grown by Czochralski method and the spectra were measured. The fluorescence lifetime at 1017 nm was measured to be 644 μs and the radiative lifetime was 209 μs. The laser parameters, βminIsat as well as Imin have been calculated to be 4.6%, 14.4 Kw/cm2,...

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Bibliographic Details
Published in:Journal of materials research 2012-08, Vol.27 (16), p.2096-2100
Main Author: Yang, Fugui
Format: Article
Language:English
Subjects:
Analysis
Applied and Technical Physics
Biomaterials
Crystals
Electronics
Energy
Inorganic Chemistry
Investigations
Lasers
Luminescence quenching
Materials Engineering
Materials research
Materials Science
Nanotechnology
Radiation
Single crystals
Spectroscopy
Studies
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Summary:The good quality single crystal ZnWO4:Yb3+ was grown by Czochralski method and the spectra were measured. The fluorescence lifetime at 1017 nm was measured to be 644 μs and the radiative lifetime was 209 μs. The laser parameters, βminIsat as well as Imin have been calculated to be 4.6%, 14.4 Kw/cm2, 0.66 Kw/cm2, respectively. The Stark-level components of the 2F7/2 and 2F5/2 were also determined. End-pumping crystal ZnWO4:Yb3+ with 975 nm laser diode, we investigated the laser output property. The highest output power at wavelength 1017 nm was obtained to be 0.5 W, corresponding to the pumping power of 10 W and the threshold was about 2 W. PACS: 71.20.Eh; 78.20.-e; 65.60. +a, 42.55.Xi, 42.55.Ye, 42.60.Gd.
ISSN:0884-2914
2044-5326
DOI:10.1557/jmr.2012.126