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使用时域有限差分法,研究了各向异性特异材料(AMM)作为包层的AMM/介质/AMM波导中表面等离子体的共振性质.色散关系表明,当特异材料为负磁导率的always-cutoff型时,AMM/介质/AMM波导支持TE极化的表面等离子体,表面等离子体的波长随着中间介质层的厚度和特异材料磁等离子体频率的减小而变短.在有限长度AMM/介质/AMM波导中,由于两端界面的反射,表面等离子体模在波导中形成Fabry-Perot共振,而实现亚波长的表面等离子体微腔.在共振频率,电场强度在微腔的中部达到最大值,而磁场分别在两端界面处达到最大,电磁能强局域在中间介质层中,这一性质将在可调的具有强局域特性的亚波长微腔及腔量子电动力学中具有潜在的应用.
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关键词:
- 特异材料波导 /
- 各向异性 /
- 表面等离子体 /
- Fabry-Perot共振
[1] Veselago V G 1968 Soviet Physics Usp. 10 509
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[32] Park J, Kim K Y, Lee I M, Na H, Lee S Y, Lee B 2010 Opt. Express 18 598
[33] [34] [35] Stegeman G I, Wallis R F, Maradudin A A 1983 Opt. Lett. 8 386
[36] Li M, Wen Z C, Fu J X, Fang X, Dai Y M, Liu R J, Han X F, Qiu X G 2009 J. Phys. D: Appl. Phys. 42 115420
[37] [38] Helgert C, Menzel C, Rockstuhl C, Pshenay-Severin E, Kley E B, Chipouline A, Tunnermann A, Lederer F, Pertsch T 2009 Opt. Lett. 34 704
[39] [40] [41] Feng Y J, Teng X H, Chen Y, Jiang T 2005 Phys. Rev. B 72 245107
[42] [43] Dionne J A, Lezec H J, Atwater H A 2006 Nano Lett. 6 1928
[44] [45] Gordon R 2006 Phys. Rev. B 73 153405
[46] [47] Zhang L W, Zhang Y W, Zhao Y H, Zhai J W, Li L X 2010 Opt. Express 18 25052
-
[1] Veselago V G 1968 Soviet Physics Usp. 10 509
[2] [3] Sun Y Z, Ran L X, Wang D X, Wang W G, Chen Q L 2010 Acta Phys Sin. 59 4602 (in Chinese) [孙永志, 冉立新, 王东兴, 王伟光, 陈秋林 2010 物理学报 59 4602]
[4] [5] Alu` A, Engheta N 2003 IEEE Trans. Antennas Propagat. 51 2558
[6] Zhang L W, Wang Y Z, He L, Xu J P 2010 Acta Phys Sin 59 6106 (in Chinese) [张利伟, 王佑贞, 赫丽, 许静平2010 物理学报 59 6106]
[7] [8] Zhou L, Wen W J, Chan C T, Shen P 2005 Phys. Rev. Lett. 94 243905
[9] [10] [11] Xiang Y J, Dai X Y, We S C 2007 J. Opt. Soc. Am. B 24 2033
[12] [13] Marques R, Medina F, Rafii-EI-Idrissi R 2002 Phys. Rev. B 65 144440
[14] Smith D R, Schultz S 2003 Phys. Rev. Lett. 90 077405
[15] [16] [17] Schurig D, Smith D R 2003 Appl. Phys. Lett. 82 2215
[18] Fang A, Koschny T, Soukoulis C M 2009 Phys. Rev. B 79 245127
[19] [20] Liu H Y, Lv Q, Luo H L, Wen S C 2010 Acta Phys Sin. 59 256 (in Chinese) [刘虹遥, 吕强, 罗海陆, 文双春 2010 物理学报 59 256]
[21] [22] [23] Feng Y J, Teng X H, Wnag Z B, Zhao J M, Jiang T 2009 J. Appl. Phys. 105 034912
[24] [25] Jiang T, Zhao J M, Feng Y J 2009 Opt. Express 17 170
[26] Ruppin R 2001 J. Phys.: Condens. Matter 13 1811
[27] [28] Miyazaki H T, Kurokawa Y 2006 Phys. Rev. Lett. 96 097401
[29] [30] [31] Kurokawa Y, Miyazaki H T 2007 Phys. Rev. B 75 035411
[32] Park J, Kim K Y, Lee I M, Na H, Lee S Y, Lee B 2010 Opt. Express 18 598
[33] [34] [35] Stegeman G I, Wallis R F, Maradudin A A 1983 Opt. Lett. 8 386
[36] Li M, Wen Z C, Fu J X, Fang X, Dai Y M, Liu R J, Han X F, Qiu X G 2009 J. Phys. D: Appl. Phys. 42 115420
[37] [38] Helgert C, Menzel C, Rockstuhl C, Pshenay-Severin E, Kley E B, Chipouline A, Tunnermann A, Lederer F, Pertsch T 2009 Opt. Lett. 34 704
[39] [40] [41] Feng Y J, Teng X H, Chen Y, Jiang T 2005 Phys. Rev. B 72 245107
[42] [43] Dionne J A, Lezec H J, Atwater H A 2006 Nano Lett. 6 1928
[44] [45] Gordon R 2006 Phys. Rev. B 73 153405
[46] [47] Zhang L W, Zhang Y W, Zhao Y H, Zhai J W, Li L X 2010 Opt. Express 18 25052
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