| 多光子激发下ZnO微针的紫外激光特性研究 |
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| 引用本文： | 朱光平,刘忠良,刘亲壮. 多光子激发下ZnO微针的紫外激光特性研究[J]. 光电子．激光, 2011, 0(7): 1026-1029 |
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| 作者姓名： | 朱光平 刘忠良 刘亲壮 |
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| 作者单位： | 淮北师范大学物理与电子信息学院；;淮北师范大学物理与电子信息学院；;淮北师范大学物理与电子信息学院； |
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| 基金项目： | 国家自然科学基金资助项目(11004071);安徽省自然科学基金资助项目(11040606M10);安徽省教育厅自然科学基金重点资助项目(KJ2010A306) |
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| 摘 要： | 以氧化锌（ZnO）粉和碳（C）粉的混合物作为原材料,利用碳热还原的方法合成了六角纤锌矿结构的ZnO微针。用800 nm的近红外激光激发单根微针,在紫外出现两个辐射带,其中一个带的中心波长在392 nm附近,随激发功率的增大略有红移,源自激子-激子散射引起的辐射;另一个带的中心波长大于400 nm,源自电子-空穴等离子体...
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| 关 键 词： | 氧化锌(ZnO) 微针 激光 |
Investigation of ultraviolet laser characteristics of a ZnO microneedle under multi-photon excitation |
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| ZHU Guang-ping,LIU Zhong-liang and LIU Qin-zhuang. Investigation of ultraviolet laser characteristics of a ZnO microneedle under multi-photon excitation[J]. Journal of Optoelectronics·laser, 2011, 0(7): 1026-1029 |
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| Authors: | ZHU Guang-ping LIU Zhong-liang LIU Qin-zhuang |
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| Affiliation: | School of Physics and Electronic Information,Huaibei Normal University,Huaibei 235000,China;School of Physics and Electronic Information,Huaibei Normal University,Huaibei 235000,China;School of Physics and Electronic Information,Huaibei Normal University,Huaibei 235000,China |
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| Abstract: | ZnO microneedles with hexagonal wurtzite structure were synthesized by carbon thermal reduction method with the mixture of ZnO powder and graphite powder as source materials.Under excitation of near-infrared laser with 800 nm wavelength,two ultraviolet emission bands were observed from a microneedle.The center of the shorter-wavelength band is located at about 392 nm with a small redshift as excitation power increases,which is attributed to the recombination from exciton-exciton scattering.The c... |
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| Keywords: | ZnO microneedle laser |
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