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Growth and spectral properties of Er 3+ /Tm 3+ co‐doped LiYF 4 single crystal
Author(s) -
Wang Peiyuan,
Xia Haiping,
Peng Jiangtao,
Hu Haoyang,
Tang Lei,
Dong Yanming,
Fu Li,
Jiang Haochuan,
Chen Baojiu
Publication year - 2013
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201300104
Subject(s) - analytical chemistry (journal) , doping , crystal (programming language) , luminescence , single crystal , absorption spectroscopy , absorption (acoustics) , laser diode , materials science , excitation , laser , crystal growth , emission spectrum , energy transfer , diode , chemistry , spectral line , crystallography , optics , optoelectronics , physics , molecular physics , chromatography , astronomy , computer science , composite material , programming language , quantum mechanics
High quality Er 3+ /Tm 3+ :LiYF 4 single crystals were grown by a Bridgman method. The absorption spectra and luminescent properties of the crystals were studied to characterize the effect of Tm 3+ on the spectroscopic properties upon excitation of an 800 nm laser diode. The broaden 1.5 μm and the enhanced 2.7 μm emission were observed in the Er 3+ /Tm 3+ co‐doped LiYF 4 single crystals. Meanwhile, the up‐conversion and 1.5 μm emission intensities from Er 3+ decrease with increasing the ratio of Tm 3+ to Er 3+ . The energy transfer processes between Tm 3+ and Er 3+ in the Er 3+ /Tm 3+ co‐doped samples were analyzed. The energy transfer efficiency η ETE from Er 3+ to Tm 3+ is calculated. The highest η ETE of 65.30% for the sample with 0.296 mol% of Er 3+ , 0.496 mol% of Tm 3+ concentration was obtained. The present work indicates that Er 3+ /Tm 3+ co‐doped LiYF 4 single crystal can be a promising material for the potential application in infrared devices.