Infrared luminescence of Tm{sup 3+}/Yb{sup 3+} codoped lanthanum aluminum germanate glasses

Journal Article · Fri Jan 15 04:00:00 EST 2010 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3289589· OSTI ID:21476094

Qiang, Zhang; Guang, Zhang ^[1]; Guorong, Chen ^[2]; Jianrong, Qiu ^[3]; Danping, Chen ^[1]

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1. Key Laboratory of Material Science and Technology for High Power Lasers, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)
2. Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237 (China)
3. State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027 (China)

Tm{sup 3+} doped and Tm{sup 3+}/Yb{sup 3+} codoped lanthanum aluminum germanate (LAG) glasses are prepared by melt-quenching method and characterized optically. Based on the measurement of absorption spectrum, Judd-Ofelt intensity parameters ({Omega}{sub 2},{Omega}{sub 4},{Omega}{sub 6}) are calculated. The radiation emission rates, branching ratios, and lifetimes of Tm{sup 3+} are calculated to evaluate the spectroscopic properties of Tm{sup 3+} in LAG glass. The infrared emission properties of the samples are investigated and the results show that the 1.8 {mu}m emission can be greatly enhanced by adding proper amount of Yb{sup 3+} under the excitation of 980 nm. The energy transfer processes of Yb{sup 3+}-Yb{sup 3+} and Yb{sup 3+}-Tm{sup 3+} are analyzed, and the results show that Yb{sup 3+} ions can transfer their energy to Tm{sup 3+} ions with high efficiency and large energy transfer coefficient.

• OSTI ID: 21476094
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 2 Vol. 107; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTRA
ALUMINIUM COMPOUNDS
BRANCHING RATIO
CHARGED PARTICLES
DIMENSIONLESS NUMBERS
DOPED MATERIALS
EMISSION
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EXCITATION
GERMANATES
GERMANIUM COMPOUNDS
GLASS
INFRARED SPECTRA
IONS
LANTHANUM COMPOUNDS
LIFETIME
LUMINESCENCE
MATERIALS
OXYGEN COMPOUNDS
PHOTON EMISSION
QUENCHING
RARE EARTH COMPOUNDS
SPECTRA
THULIUM COMPOUNDS
THULIUM IONS
YTTERBIUM COMPOUNDS
YTTERBIUM IONS