Yinsheng Xu
East China University of Science and Technology
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Publication
Featured researches published by Yinsheng Xu.
Optics Express | 2008
Guang Yang; H. Jain; Ashtosh Ganjoo; Donghui Zhao; Yinsheng Xu; Huidan Zeng; Guorong Chen
Photo-darkening and photo-bleaching are well known phenomena in As-Se and Ge-Se chalcogenide glasses, respectively. Consequently, a systematic dependence of photo-induced optical changes in Ge(x)As(45-x)Se(55) glass series on x is expected between these two extremes. This prediction of photosensitivity on Ge/As ratio has been exploited to demonstrate the first intrinsically photo-stable chalcogenide glass at x approximately 10, which would be suitable for fabricating photo-insensitive optical components for various applications.
Optics Letters | 2008
Yinsheng Xu; Danping Chen; Wei Wang; Qiang Zhang; Huidan Zeng; Ce Shen; Guorong Chen
The near-IR emission spectra of Er3+-Tm3+ codoped 70GeS2-20In2S3-10CsI chalcohalide glasses were studied with an 808 nm laser as an excitation source. A broad emission extending from 1.35 to 1.7 microm with a FWHM of approximately 160 nm was recorded in a 0.1 mol.% Er2S3, 0.5 mol.% Tm2S3 codoped chalcohalide glass. The fluorescence decay curves of glasses were measured by monitoring the emissions of Tm3+ at 1460 nm and Er3+ at 1540 nm, and the lifetimes were obtained from the first-order exponential fit. The luminescence mechanism and the possible energy-transfer processes are discussed with respect to the energy-level diagram of Er3+ and Tm3+ ions.
Materials Research Bulletin | 2011
Huidan Zeng; Zhenyu Lin; Qiang Zhang; Xiaoluan Liang; Yinsheng Xu
A spectroscopic investigation of Eu{sup 2+}/Dy{sup 3+} codoped SrO-Al{sub 2}O{sub 3}-B{sub 2}O{sub 3} glass-ceramic is presented. The sample exhibits green emission excited by ultraviolet (UV) light and near-IR femtosecond (fs) laser. The emission profile obtained by near-IR fs laser irradiation is similar to that by UV excitation, indicating that both of the emissions come from 5d {yields} 4f transition of the Eu{sup 2+} ions. The relationship between the upconversion luminescence (UCL) intensity and pump power reveals a two-photon process in the conversion of near-IR radiation to the green emission. The possible mechanism of UCL from such glass-ceramic is proposed.
Journal of Physical Chemistry C | 2011
Yinsheng Xu; Xianghua Zhang; Shixun Dai; Bo Fan; Hongli Ma; Jean-Luc Adam; Jing Ren; Guo-Rong Chen
Journal of Physical Chemistry C | 2009
Yinsheng Xu; Danping Chen; Qiang Zhang; Huidan Zeng; Ce Shen; Jean-Luc Adam; Xianghua Zhang; Guo-Rong Chen
Journal of the American Ceramic Society | 2008
Yinsheng Xu; Guang Yang; Wei Wang; Huidan Zeng; Xianghua Zhang; Guorong Chen
Journal of Alloys and Compounds | 2010
Wei Wang; Yinsheng Xu; Ce Shen; Qiqi Yan; Huidan Zeng; Guorong Chen
Journal of the American Ceramic Society | 2010
Ce Shen; Qiqi Yan; Yinsheng Xu; Guang Yang; Wang Shufen; Xing Zhongwen; Guo-Rong Chen
Journal of the American Ceramic Society | 2009
Yinsheng Xu; Qiang Zhang; Ce Shen; Danping Chen; Huidan Zeng; Guorong Chen
Ceramics International | 2009
Hua Wang; Xianghua Zhang; Guang Yang; Yinsheng Xu; Hongli Ma; Jean-Luc Adam; Zhen'An Gu; Guorong Chen