光偶极天线的远场方向性研究

蒋双凤; 孔凡敏; 李康; 高晖

doi:10.7498/aps.60.045203

摘要

用时域有限差分方法模拟了两种光偶极天线模型的场分布,研究了光偶极天线的远场辐射特性随其长度增加而变化的规律以及影响其远场方向性的因素,发现光偶极天线的远场方向性随其长度增加而变化的规律类似于经典对称振子天线的相应规律.但高阶局域表面等离激元模式的存在使得光偶极天线的远场辐射图更快地出现了旁瓣.这些发现对于提高光天线的性能具有重要意义.

关键词:

By simulating the field distributions of two optical dipole antenna models with the finite-difference time-domain (FDTD) method, the variation regularity of their far-field radiation with their length increasing and the factors which can influence their far-field directivity are studied. The results show that the variation regularity of optical dipole antenna is analogous to that of classic symmetrical dipole antenna. But in the far-field directivity plot of optical dipole antenna, side-lobes occur much more quickly, owing to the existence of high-order localized surface plasmon modes. These results hold a significant promise of improving the performance of optical antennas.

Keywords:

作者及机构信息

1.
山东大学信息科学与工程学院,济南 250100

基金项目: 国家重点基础研究发展计划(批准号:2009CB930503, 2009CB930501,2007CB613203),国家教育部留学回国人员科研启动基金和山东省优秀中青年科学家科研奖励基金(批准号:BS2009NJ002)资助的课题.

Authors and contacts

1.
School of Information Science and Engineering, Shandong University, Jinan 250100, China

参考文献

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[2]	Xue W R, Guo Y N, Zhang W M 2010 Chin. Phys. B 19 017302
[3]	Zhang H F, Cao D, Tao F, Yang X H, Wang Y, Yan X N, Bai L H 2010 Chin. Phys. B 19 027301
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[22]	Huang Y, Boyle K 2008 Antennas: From Theory to Practice p129
[23]	Taminiau T H, Stefani F D, Hulst N F V 2008 New J. Phys. 10 105005
[24]	Johnson P B, Christy R W 1972 Phys. Rev. B 12 4370
[25]	Yee K 1996 IEEE Trans. Antennas Propag. 3 302
[26]	Taflove A, Hagness S C 2000 Computational Electrodynamics: The Finite-difference time-domain Method (Boston: Artech House)
[27]	Berenger J P 1996 J. Comput. Phys. 127 363
[28]	Berenger J P 1994 J. Comput. Phys. 114 185
[29]	Sherry L J, Jin R, Mirkin C A, Schatz G C, VanDuyne R P 2006 Nano Lett. 6 2060
[30]	Yang J, Zhang J, Wu X, Gong Q 2005 Opt. Express 15 16852
[31]	Muskens O L, Giannini V, G'omez Rivas. 2007 J. Opt. Express. 15 17736
[32]	Hohenau R, Krenn, Schider G, Ditlbacher H, Leitner A, Aussenegg F R, Schaich W L 2005 Euro. Phys. Lett. 69 538
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施引文献

[1]	Barnes W L, Dereux A, Ebbesen T W 2003 Nature 424 824
[2]	Xue W R, Guo Y N, Zhang W M 2010 Chin. Phys. B 19 017302
[3]	Zhang H F, Cao D, Tao F, Yang X H, Wang Y, Yan X N, Bai L H 2010 Chin. Phys. B 19 027301
[4]	Cao L R, Geng W D, Huang Q, Sun J, Wang J, Xiong S Z, Zhang X D, Zhao Y 2009 Acta Phys. Sin. 58 1980 (in Chinese) [曹丽冉、耿卫东、黄茜、孙建、王京、熊绍珍、张晓丹、赵颖 2009 物理学报 58 1980]
[5]	Bai W L, Cai L K, Gan Q Q, Guo B S, Song G F 2009 Acta Phys. Sin. 58 8021 (in Chinese) [白文理、蔡利康、甘巧强、郭宝山、宋国峰物理学报 58 8021] 〖6] Wang J Q, Liang H M, Fang L, Li M, Niu X, Du J L 2009 Chin. Phys. B 18 4870
[6]	Nie S, Emory S R 1997 Science 275 1102
[7]	Kneipp K, Wang Y, Kneipp H, Perelman L T,Itzkan I, Dasari R R, Feld M S 1997 Phys. Rev. Lett. 78 1667
[8]	Lee K S, El-Sayed M A 2006 J. Phys. Chem. B 110 19220
[9]	Haes A J, Van Duyne H, R P 2002 J. Am. Chem. Soc. 124 10596
[10]	Betzig E, Trautman J K, Harris T D, Weiner J S, Kostelak R L 1991 Science 251 1468
[11]	Anderson N, Bouhelier A, Novotny L 2006 J. Opt. A:Pure Appl. Opt. 8 227
[12]	Huang C, Bouhelier A, France G C d, Bruyant A, Guenot A, Finot E, Weeber J C, Dereux A 2008 Phys. Rev. B 78 155407
[13]	Li J J, Salandrino A, Engheta N 2007 Phys. Rev. B 76 245403
[14]	Brongersma M L 2008 Nature Photonics 2 270
[15]	Xie H, Kong F M, Li K 2009 Journal of Electromagnetic Waves and Aplications 23 535
[16]	Crozier K B, Sundaramurthy A, Kino G S 2003 J. App. Phys. 94 4632
[17]	Robert D G, Daniel E P 1997 Appl. Phys. Lett. 70 1354
[18]	Rogobete L, Kaminski F, Agio M, Sandoghdar V 2007 Opt. Lett. 32 1623
[19]	Wang J Y, Wu Z Y, Yang Y T 2010 Acta Phys. Sin. 59 1890 (in Chinese) [汪家友、吴振宇、杨银堂 2010 物理学报 59 1890]
[20]	Mohammadi A, Sandoghdar V, Agio M 2008 New J. Phys. 10 105015
[21]	Chen C, Xu Y M, Zhao G W 2007 Acta Phys. Sin. 56 5298 (in Chinese) [陈诚、徐跃民、赵国伟 2007 物理学报 56 5298]
[22]	Huang Y, Boyle K 2008 Antennas: From Theory to Practice p129
[23]	Taminiau T H, Stefani F D, Hulst N F V 2008 New J. Phys. 10 105005
[24]	Johnson P B, Christy R W 1972 Phys. Rev. B 12 4370
[25]	Yee K 1996 IEEE Trans. Antennas Propag. 3 302
[26]	Taflove A, Hagness S C 2000 Computational Electrodynamics: The Finite-difference time-domain Method (Boston: Artech House)
[27]	Berenger J P 1996 J. Comput. Phys. 127 363
[28]	Berenger J P 1994 J. Comput. Phys. 114 185
[29]	Sherry L J, Jin R, Mirkin C A, Schatz G C, VanDuyne R P 2006 Nano Lett. 6 2060
[30]	Yang J, Zhang J, Wu X, Gong Q 2005 Opt. Express 15 16852
[31]	Muskens O L, Giannini V, G'omez Rivas. 2007 J. Opt. Express. 15 17736
[32]	Hohenau R, Krenn, Schider G, Ditlbacher H, Leitner A, Aussenegg F R, Schaich W L 2005 Euro. Phys. Lett. 69 538
[33]	Ditlbacher H, Krenn J R, Felidj N, Lamprecht B, Schier G, Salerno M, Leiter A, Aussenegg F R 2005 Phys. Rev. Lett. 95 257403

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