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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 16 — Aug. 15, 2013
  • pp: 3071–3074

2.7 μm emission in Er3+:CaF2 nanocrystals embedded oxyfluoride glass ceramics

Guobo Wu, Shaohua Fan, Yuanhao Zhang, Guanqi Chai, Zhijun Ma, Mingying Peng, Jianrong Qiu, and Guoping Dong  »View Author Affiliations


Optics Letters, Vol. 38, Issue 16, pp. 3071-3074 (2013)
http://dx.doi.org/10.1364/OL.38.003071


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Abstract

Using conventional melt-quenching and subsequent thermal treatment, Er3+ doped CaF2 transparent glass ceramic (GC) was prepared. X-ray diffraction and high-resolution transmission electron microscopy confirmed the formation and microstructure of CaF2 nanocrystals in glass. An energy-dispersive spectrometer was used to investigate the distribution of Er3+ ions and CaF2 nanocrystals in glass. It was found that Er3+ ions prefer to concentrate in the CaF2 nanocrystals rather than in a glass matrix, and the amount of Er3+ ions plays a key role in the formation of CaF2 nanocrystals in a glass matrix with the Er3+ ions as nucleating agent. An intense 2.7 μm emission due to Er3+: I11/24I13/24 was achieved upon excitation at 980 nm with a laser diode, while the 2.7 μm emission can be neglected in the as-prepared glass counterpart, which confirmed the incorporation of Er3+ ions into CaF2 nanocrystals. An obvious enhancement of 2.7 μm emerged in the GC doped with 3% Er3+ and heat-treated at 620°C.

© 2013 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.2750) Materials : Glass and other amorphous materials
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Materials

History
Original Manuscript: June 24, 2013
Revised Manuscript: July 14, 2013
Manuscript Accepted: July 14, 2013
Published: August 8, 2013

Citation
Guobo Wu, Shaohua Fan, Yuanhao Zhang, Guanqi Chai, Zhijun Ma, Mingying Peng, Jianrong Qiu, and Guoping Dong, "2.7 μm emission in Er3+:CaF2 nanocrystals embedded oxyfluoride glass ceramics," Opt. Lett. 38, 3071-3074 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-16-3071


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