| 飞秒激光诱导ZnO :Al薄膜周期结构及其光致发光特性 |
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| 引用本文： | 周侃,冯东海,李霞,贾天卿,刘建胜,徐至展.飞秒激光诱导ZnO :Al薄膜周期结构及其光致发光特性[J].光学学报,2011(8):224-228. |
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| 作者姓名： | 周侃 冯东海 李霞 贾天卿 刘建胜 徐至展 |
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| 作者单位： | 中国科学院上海光学精密机械研究所强场激光物理国家重点实验室;华东师范大学精密光谱科学与技术国家重点实验室; |
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| 基金项目： | 国家973计划(2010CB923203); 国家自然科学基金(10874044,10904038); 上海市曙光学者项目(07SG25); 教育部新世纪优秀人才计划; 上海市科学技术委员会资助项目(09142200500,09JC1404700,09ZR1409300)资助课题 |
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| 摘 要： | 利用单束800 run飞秒激光在掺杂了Al的ZnO薄膜中制备了纳米周期条纹结构.研究了不同能流密度的飞秒激光在照射不同的时间后,表面纳米周期结构的变化规律及其形成机制.利用He-Ge激光器作为激发光源,研究了ZnO:Al薄膜的光致发光特性及其与纳米周期结构的关系.结果表明,近带隙发光增强的主要原因是800 nm飞秒激光...
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| 关 键 词： | 光学材料 纳米周期条纹 光致发光 飞秒激光 ZnO:Al薄膜 |
Periodic Nanoripples and Photoluminescence on ZnO:Al Film Induced by Femtosecond Laser Pulses |
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| Zhou Kan, Feng Donghai Li Xia, Jia Tianqing Liu Jiansheng Xu Zhizhan State Key Laboratory of High Field Laser Physics.Periodic Nanoripples and Photoluminescence on ZnO:Al Film Induced by Femtosecond Laser Pulses[J].Acta Optica Sinica,2011(8):224-228. |
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| Authors: | Zhou Kan Feng Donghai Li Xia Jia Tianqing Liu Jiansheng Xu Zhizhan State Key Laboratory of High Field Laser Physics |
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| Institution: | Zhou Kan1,2 Feng Donghai2 Li Xia1,2 Jia Tianqing2 Liu Jiansheng1 Xu Zhizhan1 1 State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China2 State Key Laboratory of Precision Spectroscopy,Department of Physics,East China Normal University,Shanghai 200062,China |
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| Abstract: | The periodic nanoripples on ZnO:Al films induced by 800 nm femtosecond laser pulses are prepared.The regularity and formation mechanism of surface periodical nanostructure are studied after it is irradiated by femtosecond laser of different energy flux densities.Using He-Ge laser as light source,the photoluminescence spectra of ZnO:Al films and its relationship with periodical nanostructures are studied.It is shown that the enhancement of emission near the band gap results from the quenching effect by 800 n... |
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| Keywords: | optical materials periodic nanoripples photoluminescence femtosecond laser ZnO:Al film |
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