Infrared quantum cutting in Tb{sup 3+},Yb{sup 3+} codoped transparent glass ceramics containing CaF{sub 2} nanocrystals

Journal Article · Mon Apr 07 04:00:00 EDT 2008 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2907496· OSTI ID:21101971

Song, Ye; Bin, Zhu; Jingxin, Chen; Jin, Luo; Jianrong, Qiu ^[1]

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1. State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027 (China)

Tb{sup 3+}-Yb{sup 3+} codoped transparent oxyfluoride glass ceramics containing CaF{sub 2} nanocrystals were synthesized. The formation of CaF{sub 2} nanocrystals in the glass ceramics was confirmed by x-ray diffraction and high resolution transmission electron microscopy. The incorporation of Tb{sup 3+} and Yb{sup 3+} into CaF{sub 2} nanocrystal lattice was confirmed by energy dispersive spectroscopy. Infrared quantum cutting involving Yb{sup 3+} 950-1100 nm ({sup 2}F{sub 5/2}{yields}{sup 2}F{sub 7/2}) emission was achieved upon the excitation of {sup 5}D{sub 4} energy level of Tb{sup 3+} at 484 nm. The photoluminescence properties have been studied for these glass ceramics. Yb{sup 3+} concentration dependent quantum efficiency was calculated, and the maximum efficiency approaches 155% before reaching concentration quenching threshold.

• OSTI ID: 21101971
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 14 Vol. 92; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CALCIUM FLUORIDES
CERAMICS
DOPED MATERIALS
ENERGY LEVELS
EXCITATION
GLASS
NANOSTRUCTURES
OXYFLUORIDES
PHOTOLUMINESCENCE
QUANTUM EFFICIENCY
SPECTROSCOPY
TERBIUM IONS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
YTTERBIUM IONS