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Start Over Author "Ning-Sheng Xu" Journal journal of applied physics
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1. Ultraviolet superfluorescence from oxygen vacancies in WO3-x nanowires at room temperature.

Author

Jian Yi Luo, Ning Sheng Xu, Fu Li Zhao, Shao Zhi Deng, and Yu Ting Tao

Subjects
*NANOWIRES, *SUPERFLUORESCENCE, *OXYGEN, *ULTRAVIOLET radiation, *PICOSECOND pulses, *ENERGY transfer
Abstract

We report the first observation of ultraviolet superfluorescence (SF) from oxygen vacancies in WO3-x nanowires at room temperature, and of picosecond-scale energy transfer between emission centers (oxygen vacancies) in a plane. A theoretical development from Dicke's model leads to general formulation for a two-dimensional system, and is applied to explain the energy transfer process. The results demonstrate a possibility to generate ultrafast pulse of ultraviolet light through SF from a localized ensemble of defect states. [ABSTRACT FROM AUTHOR]

Published
2011
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