| 金复合纳米微粒的消光特性 |
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| 引用本文： | 颜丙海,杨杨,王永昌. 金复合纳米微粒的消光特性[J]. 光子学报, 2003, 32(6): 698-701 |
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| 作者姓名： | 颜丙海 杨杨 王永昌 |
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| 作者单位： | 西安交通大学理学院现代物理研究所,西安,710049 |
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| 基金项目： | 国家自然科学基金资助项目 ( 6 0 2 770 0 3) |
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| 摘 要： | 基于Mie光散射理论,研究了金壳介质芯的金复合纳米球壳微粒在光散射与吸收中的消光特性.对微粒增大时的多极子特性以及内半径变动时共振峰的移动作了计算和分析,证实了共振峰位置随内外半径比增大而增大的规律.还对纯金纳米微粒的多极子特性作了计算,并讨论了总消光效率中散射和吸收各自的贡献.
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| 关 键 词： | 金复合纳米球壳微粒 纯金纳米微粒 多极子特性 消光效率 Mie光散射理论 |
| 收稿时间： | 2002-08-13 |
| 修稿时间： | 2002-08-13 |
Extinction Properties of Composite Gold Nanoparticles |
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| Yan Binghai,Yang Yang,Wang Yongchang. Extinction Properties of Composite Gold Nanoparticles[J]. Acta Photonica Sinica, 2003, 32(6): 698-701 |
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| Authors: | Yan Binghai Yang Yang Wang Yongchang |
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| Affiliation: | Institute of Modern Physics, School of Science, Xi’an Jiaotong University, Xi’an 710049 |
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| Abstract: | Based on Mie scattering theory, a detailed discussion is given on the scattering and absorption properties of gold coated cored nanoshell particles in this paper. Calculations and analyses are given on the multipolar plasmon resonance properties and the variability of the position of resonance peak.A rule is established that the resonance peak moves to longer wavelength region as the ratio of the core radius to the total radius increases. The mutipolar plasmon resonance properties of the gold nanoparticles are also calculated and the devotions of scattering and absorption to the total extinction are analyzed as well. |
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| Keywords: | Composite gold nanoshell particles Gold nanoparticles Multipolar plasmon resonance Extinction efficiency Mie scattering theory |
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