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基于金属-电介质-金属波导结构, 提出了一种含双侧多支节型等离子波导滤波器, 采用有限元法研究了其透射特性. 在该结构的透射谱中观察到了基于电磁诱导透明效应的四个窄带透射峰, 并通过模场分布有效阐释了透射谱线中峰值、谷值的产生的物理机理. 数值研究同时表明当每个支节长度线性增加时, 透射峰中心波长也将线性增加. 这一结果可用于指导可调谐、多通道窄带滤波器的设计.
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关键词:
- 表面等离激元 /
- 金属-电介质-金属波导 /
- 电磁诱导透明 /
- 滤波器
A novel nanometeric plasmonic filter comprised of double-sided eight stub resonators side-coupled with a metal-isolator-metal waveguide is proposed and demonstrated numerically by the finite element method. The numerical results show that the four transmittance peaks in a transmission spectrum range from 400 nm to 2000 nm can be achieved due to the electromagnetically-induced-transparency-like spectral responses between every two adjacent stub resonators with detuned cavity length. Based on the magnetic field distributions from the two dimensional model, the physical origins of transmittance peaks and dips are clarified by phase analysis of Fabry-Perot resonance effect. In addition, the central wavelengths of transmittance peaks can be tuned by adjusting the cavity length of each stub resonator, which means the waveguide filter could be utilized to develop ultracompact and tunable narrowband photonic filters for high integration.-
Keywords:
- surface plasmons polaritons /
- metal-insulator-metal waveguides /
- electromagnetically induced transparency /
- filter
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[15] Yun B F, Hu G H, Cui Y P 2013 Plasmonics 8 267
[16] Lin X S, Huang X G 2008 Opt. Lett. 33 2874
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[20] Pang S F, Zhang Y Y, Huo Y P, Xie Y, Hao L M, Zhang T 2015 Plasmonics 10 1723
[21] Chen J, Wang C, Zhang R, Xiao J 2012 Opt.Lett. 37 5133
[22] Kekatpure R D, Barnard E S, Cai W, Brongersma M L 2010 Phys. Rev. Lett. 104 243902
[23] Han Z, Forsberg E, He S 2007 IEEE Photon. Techn. Lett. 19 91
[24] Zhai X 2013 Ph. D. Dissertation (Changsha: Hunan University) (in Chinese) [翟翔 2013 博士学位论文 (长沙:湖南大学)]
[25] Haus H A 1984 Waves and Fields in Optoelectronics (Englewood Cliffs, NJ: Prentice-Hall) pp56-59
[26] Economou E N 1969 Phys. Rev. 182 539
[27] Li W J, Xiang D, Li X H, Jia P 2012 J. Univ. South China (Science and Technology) 26 61 (in Chinese) [李伟军, 向东, 李小华, 贾鹏 2012 南华大学学报: 自然科学版 26 61]
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[1] Barnes W L, Dereux A, Ebbesen T W 2003 Nature 424 824
[2] Hu F, Yi H, Zhou Z 2011 Opt. Lett. 36 1500
[3] Moreno E, Rodrigo S G, Bozhevolnyi S I, Martin-Moreno L, Garcia-Vidal F J 2008 Phys. Rev. Lett. 100 023901
[4] Pile D F P, Gramotnev D K 2004 Opt. Lett. 29 1069
[5] Berini P 2000 Phys. Rev. B 61 10484
[6] Liu J Q, Wang L L, He M D, Huang W Q, Wang D, Zou B S, Wen S 2008 Opt. Express 16 4888
[7] Pieter N, Pol V D, Iwijn D V, Liesbet L, Gustaaf B 2009 Nature Photon. 3 283
[8] Veronis G, Fan S 2005 Appl. Phys. Lett. 87 131102
[9] Lee T W, Gray S K 2005 Opt. Express 13 9652
[10] Gao H, Shi H, Wang C, Du C, Luo X, Deng Q, Lu Y, Lin X, Yao H 2005 Opt. Express 13 10795
[11] Han Z, Liu L, Forsberg E 2006 Opt. Commun. 259 690
[12] Lu H, Liu X, Wang G, Mao D 2012 Nanotechnology 23 444003
[13] Park J, Kim H, Lee B 2008 Opt. Express 16 413
[14] Wang B, Wang G P 2005 Appl. Phys. Lett. 87 013107
[15] Yun B F, Hu G H, Cui Y P 2013 Plasmonics 8 267
[16] Lin X S, Huang X G 2008 Opt. Lett. 33 2874
[17] Tao J, Huang X G, Lin X S, Chen J H, Zhang Q, Jin X P 2010 J. Opt. Soc. Am. 27 323
[18] Tao J, Huang X G, Lin X S, Zhang Q, Jin X P 2009 Opt. Express 17 13989
[19] Zhang Z D, Zhao Y N, Lu D, Xiong Z H, Zhang Z Y 2012 Acta. Phys. Sin. 61 187301 (in Chinese) [张志东, 赵亚男, 卢东, 熊祖洪, 张中月 2012 61 187301]
[20] Pang S F, Zhang Y Y, Huo Y P, Xie Y, Hao L M, Zhang T 2015 Plasmonics 10 1723
[21] Chen J, Wang C, Zhang R, Xiao J 2012 Opt.Lett. 37 5133
[22] Kekatpure R D, Barnard E S, Cai W, Brongersma M L 2010 Phys. Rev. Lett. 104 243902
[23] Han Z, Forsberg E, He S 2007 IEEE Photon. Techn. Lett. 19 91
[24] Zhai X 2013 Ph. D. Dissertation (Changsha: Hunan University) (in Chinese) [翟翔 2013 博士学位论文 (长沙:湖南大学)]
[25] Haus H A 1984 Waves and Fields in Optoelectronics (Englewood Cliffs, NJ: Prentice-Hall) pp56-59
[26] Economou E N 1969 Phys. Rev. 182 539
[27] Li W J, Xiang D, Li X H, Jia P 2012 J. Univ. South China (Science and Technology) 26 61 (in Chinese) [李伟军, 向东, 李小华, 贾鹏 2012 南华大学学报: 自然科学版 26 61]
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