Spectroscopic properties of newly flux grown and highly Yb super(3+)-doped cubic RE sub(2)O sub(3) (RE = Y, Gd, Lu) laser crystals

We have developed laser grade and highly Yb super(3+)-doped cubic rare-earth sesquioxides (RE sub(2)O sub(3), RE = Y, Gd, Lu) single crystals by means of a newly designed high-temperature solution growth method which gives them spectroscopic properties different from those obtained by high-temperatu...

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Bibliographic Details
Published inOptical materials Vol. 39; pp. 258 - 264
Main Authors Velazquez, Matias, Veber, Philippe, Buse, Gabriel, Petit, Yannick, Goldner, Philippe, Jubera, Veronique, Rytz, Daniel, Jaffres, Anaeel, Peltz, Mark, Wesemann, Volker, Aschehough, Patrick, Aka, Gerard
Format Journal Article
LanguageEnglish
Published 01.01.2015
Subjects
Cross sections
Crystals
Decay
Emission spectroscopy
Lasers
Rare earth metals
Single crystals
Solidification
Spectroscopy
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Summary:We have developed laser grade and highly Yb super(3+)-doped cubic rare-earth sesquioxides (RE sub(2)O sub(3), RE = Y, Gd, Lu) single crystals by means of a newly designed high-temperature solution growth method which gives them spectroscopic properties different from those obtained by high-temperature solidification methods. Absorption and emission cross sections, visible anti-Stokes emission, fluorescence decays of the new cubic Gd sub(2)O sub(3):Yb super(3+) single crystals are presented and compared to those of Y sub(2)O sub(3):Yb super(3+) and Lu sub(2)O sub(3):Yb super(3+) crystals. The case of cubic Gd sub(2)O sub(3):Yb super(3+) is particularly interesting since its basic spectroscopic properties have never been detailed and we were capable of achieving Yb-doping level as high as 20%.
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ISSN:0925-3467
DOI:10.1016/j.optmat.2014.11.037