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Synthesis and luminescence properties of Eu3+-doped silicate nanomaterial (EI CONFERENCE) 会议论文  OAI收割
17th International Conference on Dynamical Processes in Excited States of Solids, DPC'10, June 20, 2010 - June 25, 2010, Argonne, IL, United states
作者:  
Zhang J.;  Zhang J.;  Zhang J.
收藏  |  浏览/下载:58/0  |  提交时间:2013/03/25
In this paper  we introduce a sol-gel process for preparing Y 2Si2O7: Eu3+ nanocrystals. The rare earth compounds were dispersed in the SiO2 colloids and the monodisperse nano-scale composite materials were prepared. The reactant mass fraction and heat treatment temperatures could affect the structures and emission spectrum properties of as-synthesized samples. The samples emit the strong red light upon excitation under the ultraviolet. The main peaks originate from 5D0-7F2 electric dipole transition of Eu3+. With regard to the samples treated at different temperatures  the emission spectra obtained under 266 nm excitation show different shapes of spectra lines and relative intensities  indicating that the Eu3+ ions have been located in different local environments. 2011 Published by Elsevier B.V.  
Fabrication of multilayer laminar grating with high efficiency for extreme ultraviolet (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China
作者:  
Jin C.-S.;  Zhang L.-C.
收藏  |  浏览/下载:37/0  |  提交时间:2013/03/25
The main goal for investigations on multilayer laminar gratings working at the EUV region is to enhance their efficiency. In this article  second  third  we demonstrate a routine to fabricate multilayer laminar gratings with high efficiency. This routine comprises three steps: first  optimizing fabricating techniques to obtain multilayer coatings with high reflectivity  strictly controlling errors of multilayer grating parameters to ensure the coinciding of the optical performance with the expectation. Results demonstrate that this routine is feasible. The measured peak efficiency of -1 order at 12.8nm was 14.3%. Some related issues about efficiency curves such as wavelength separation and suppression of zero order are discussed.  preparing grating substrates with ideal groove profile and low roughness by holographic recording and ion beam etching process  
聚酰亚胺薄膜的制备及其磨擦学性能研究 学位论文  OAI收割
理学硕士: 中国科学院研究生院, 2003
杨祖华
收藏  |  浏览/下载:108/0  |  提交时间:2014/04/14