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国家自然科学基金(50672087)

作品数:16 被引量:25H指数:3
相关作者:邱建荣周时凤周秦岭董国平陈丹平更多>>
相关机构:浙江大学中国科学院上海光学精密机械研究所中国科学院研究生院更多>>
发文基金:国家自然科学基金国家重点基础研究发展计划国家重点实验室开放基金更多>>
相关领域:化学工程理学电子电信机械工程更多>>

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16 条 记 录,以下是 1-10
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碱性氧化物对铋掺杂硅酸盐玻璃超宽带红外发光的影响
通过冷却熔融法制备出铋掺杂的硅酸盐玻璃,这些玻璃具有覆盖1 000-1 600 nm波段的超宽带红外发光,荧光的半高宽(FWHM)超过200 nm;荧光寿命超过400μs;荧光强度随着玻璃碱性的增加而减弱。荧光峰随碱性氧...
任进军邱建荣陈丹平朱从善
关键词:光纤放大器
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Enhanced upconversion luminescence of transparent Eu3+-doped glass-ceramics containing nonlinear optical microcrystals
We report on near-infrared to visible upconversion luminescence in transparent Eu-doped SrO-TiO-SiO glass-cera...
Bin Zhu Songmin Zhang Shifeng Zhou Nan Jiang Jianrong Qiu 1 State Key Laboratory of Silicon Materials,Zhejiang University,Hangzhou 310027,China 2 Department of Physics and Astronomy Arizona State University,Tempe,Arizona 85257-1504,USA
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Self-formation of void array in Al_2O_3 crystal by femtosecond laser irradiation被引量:2
2008年
The femtosecond laser induced void array inside Al2O3 crystals was discussed. The void array was formed spontaneously under the irradiation of a single beam of infrared femtosecond laser which was focused at a fixed point inside the Al2O3 crystal sample. It was found that the regular voids only could be fabricated near the sample surface, which was different from the situation in CaF2 single crystal reported before. The possible mechanism of the phenomena was also discussed.
胡晓宋娟周秦岭杨旅云王晓丹朱从善邱建荣
Three-photon-excited upconversion luminescence of Tb3+-doped ZnO-B2O3-SiO2 glass by femtosecond laser irradiation
We have observed near infrared to visible upconversion luminescence in Tb-doped ZnO-BO-SiO glass excited at 80...
Songmin Zhang Bin Zhu Shifeng Zhou Jianrong Qiu State Key Laboratory of Silicon Materials,Zhejiang University,Hangzhou 310027,P.R.China
关键词:TB3+
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铋掺杂玻璃的红外发光机理和宽带光放大被引量:3
2009年
铋掺杂玻璃具有宽带红外发光特性,有望应用于宽带光纤放大器和超短脉冲激光等领域,近几年来受钊了人们的关注.迄今为止,已用铋离子掺杂玻璃实现了第二个光通讯窗口(1.3μm)的光放大和激光输出,及同时覆盖第二和第三(1.55μm)光通讯窗口的超宽带光放大。铋离子掺杂玻璃红外发光的研究从材料学的角度考虑,目前还有待解决的重要问题可归纳为以下两个方面:1)红外发光的起源;2)发光性能的进一步提高.
周时凤阮健邱建荣
关键词:宽带光纤放大器铋离子光放大发光机理超短脉冲激光发光特性
Photoluminescence Property of Eu-doped Calcium Aluminium Silicate Glasses
2007年
We report on a simple anti novel method to induce Si-related oxygen-deficient defects in CaO-Al2O3-SiO2 glasses by using Al metal nstead of part Al2O3 Blue emission is observed from the glass samples. Moreover, the quantities of the oxygen-deficient defects can be controlled by adjusting AI content. We also prepare glass samples using AI instead of part Al2O3 and doped with Eu^3+ ions. Addition of Al results in reduction of Eu^3+ ions to Eu^2+ ions and change of the luminescence property. The investigation made on to control and characterize the defects could lead to the development of more efficient economical materials with improved properties.
林耿邱建荣
Space-selective Precipitation and Dissolution of Ag and Au Nanoparticles in Silicate Glasses by Femtosecond Laser Irradiation被引量:1
2007年
In Ag^+ and Au^3+ co-doped silicate glass sample, we realized controllable precipitation and dissolution of Ag and Au nanoparticles. A new method was proposed for separate precipitation of Ag and Au nanoparticles in different areas of the same sample through femtosecond laser irradiation and further annealing; different colors were obtained in the same glass. We also studied the laser dissolution of Ag and Au nanoparticles in the Ag^+ and Au^3+co-doped silicate glass. The mechanism of the phenomena we observed was discussed briefly.
胡晓邱建荣
静电纺丝技术制备光学功能纳米纤维被引量:8
2009年
介绍了静电纺丝制备纳米纤维的基本原理、装置及运用静电纺丝技术制备的实芯、空芯、多孔和带状等几种不同结构的纳米纤维,阐述了近年来国内外研究者通过静电纺丝技术制备出的发光纳米纤维以及光学偏振纳米纤维的相关成果及研究进展,并讨论了这类光学功能纳米纤维潜在的应用。
董国平陈庆希陈丹平周秦岭邱建荣
关键词:静电纺丝纳米纤维发光偏振
Two-photon Upconversion Luminescence of Eu^(3+):Ca_2Al_2SiO_7 Crystal Irradiated by Infrared femtosecond Laser被引量:1
2007年
Infrared to visible upconversion luminescence was demonstrated in trivalent Europium doped Ca2Al2SiO7 crystal (Eu^3+:Ca2Al2SiO7) irradiated by focused infrared femtosecond laser. The upconversion luminescence originated from 5D0 to 7Ej (j= 1, 2) transitions of Eu^3+ The relationship between the upconversion luminescence intensity and the pump power indicated that the upconversion from near-infrared to red is dominated by a two-photon absorption process of Eu^3+ Analysis suggested that two-photon simultaneous absorption induced population inversion should be the predominant frequency upconversion mechanism.
汪晨邱建荣
关键词:UPCONVERSION
新型铋掺杂玻璃的超宽带光放大被引量:2
2008年
研究了几类可用于超宽带光纤放大器的新型增益介质,实现了铋掺杂玻璃覆盖多个光通信窗口的光放大。
周时凤邱建荣
关键词:超宽带光纤放大器
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