Erbium-thulium interaction in broadband infrared luminescent silicon-rich silicon oxide

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The Er-Tm interaction and its effect on the luminescence from Er-Tm codoped silicon-rich silicon oxide (SRSO) is investigated. Er and Tm ions were implanted into SRSO films, which consist of Si nanocrystals embedded in a SiO2 matrix. A broad luminescence spectrum extending from 1.5 to 2.0 mum was observed under excitation with a single light source due to the simultaneous, nonresonant excitation of both Er3+ and Tm3+ via Si nanocrystals. The absolute Er3+ luminescence intensity, however, is reduced relative to the case without Tm codoping. Comparison of the Er3+ and Tm3+ luminescence intensities, lifetimes, and their pump power dependence suggest that Er-Tm interaction leading to an energy transfer from the Er3+:I-4(13/2) state to the excited Tm3+:H-3(4) state is responsible for the reduction in the Er luminescence intensity. (C) 2003 American Institute of Physics.
Publisher
AMER INST PHYSICS
Issue Date
2003-05
Language
English
Article Type
Article
Keywords

FIBER AMPLIFIER; SI NANOCRYSTALS; ENERGY-TRANSFER; GAIN; EXCITATION; ER3+; BAND; NM

Citation

APPLIED PHYSICS LETTERS, v.82, pp.3445 - 3447

ISSN
0003-6951
DOI
10.1063/1.1577217
URI
http://hdl.handle.net/10203/80286
Appears in Collection
NT-Journal Papers(저널논문)
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