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The transmittance property and steady-state magnetic field distribution of the sliver circular gap embedded with a sliver nanorod are investigated using the finite-difference time-domain method. Since the titled nanorod breaks the symmetric steady-state magnetic field distribution, Fano resonance occurs in the composite system. In addition, the transmittance spectrum depends strongly on the tilting angle and topologic shape of the nanorod. These results would be useful for designing filter for specific usage.
[1] Fano U 1961 Phys. Rev. 124 1866
[2] Fan J A, Wu C, Bao K, Bao J, Bardhan R, Halas N J, Manoharan V N, Nordlander P, Shvets G, Capasso F 2010 Science 328 1135
[3] Lassiter J B, Sobhani H, Fan J A, Kundu J, Capasso F, Nordlander P, Halas N J 2010 Nano Lett.10 3184
[4] Hao F, Sonnefraud Y, Dorpe P V, Maier S A, Halas N J, Nordlander P 2008 Nano Lett. 8 3983
[5] Sonnefraud Y, Verellen N, Sobhani H, Vandenbosch G A E, Moshchalkov V V, Dorpe P V, Nordlander P, Maier S A 2010 ACS Nano 4 1664
[6] Zhang S, Genov D A, Wang Y, Liu M, Zhang X 2008 Phys. Rev. Lett. 101 047401
[7] Zhang S P, Bao K, Halas N J, Xu H X, Nordlander P 2011 Nano Lett. 11 1657
[8] Verellen N, Sonnefraud Y, Sobhani H, Hao F, Moshchalkov V V, Dorpe P V, Nordlander P, Maier S A 2009 Nano Lett. 9 1663
[9] Fang Z Y, Cai J Y, Yan Z B, Nordlander P, Halas N J, Zhu X 2011 Nano Lett. 11 4475
[10] Raether H 1988 Surface Plasmons on Smooth and Rough Surfaces and Gratings (Berlin: Springer Verlag)
[11] Song W T, Lin F, Fang Z Y, Zhu X 2010 Acta Phys. Sin. 59 6921 (in Chinese) [宋文涛, 林峰, 方哲宇, 朱星 2010 59 6921]
[12] Sun M, Liu R J, Li Z Y, Cheng B Y, Zhang D Z, Yang H F, Jin A Z 2006 Chin. Phys. 15 1591
[13] Falk A L, Koppens F H L, Yu C L, Kang K, Snapp N D, Akimov A V, Jo M H, Lukin M D, Park H 2009 Nat. Phys. 5 475
[14] Barnes W L, Dereux A, Ebbesen T W 2003 Nature 124 824
[15] Bozhevolnyi S I, Volkov V S, Devaux E, Laluet J Y, Ebbesen T W 2006 Nature 440 508
[16] Chen J J, Li Z, Zhang J S, Gong Q H 2008 Acta Phys. Sin. 57 5893 (in Chinese) [陈建军, 李智, 张家森, 龚旗煌 2008 57 5893]
[17] Wang L, Cai W, Tan X H, Xiang Y X, Zhang X Z, Xu J J 2011 Acta Phys. Sin. 60 067305 (in Chinese) [王垒, 蔡卫, 谭信辉, 向吟啸, 张心正, 许京军 2011 60 067305]
[18] 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]
[19] Gramotnev D K, Bozhevolnyi S I 2010 Nat. Photon. 4 83
[20] Chen Y Y, Zou R H, Song G, Zhang K, Yu L, Zhao Y F, Xiao J H 2012 Acta Phys. Sin. 61 247301 (in Chinese) [陈园园, 邹仁华, 宋钢, 张恺, 于丽, 赵玉芳, 肖井华 2012 61 247301]
[21] Kekatpur R D, Hryciw A C, Barnard E S, Brongersma M L 2009 Opt. Express 17 24112
[22] Gai H F, Wang J, Tian Q 2007 Appl. Opt. 46 2229
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[1] Fano U 1961 Phys. Rev. 124 1866
[2] Fan J A, Wu C, Bao K, Bao J, Bardhan R, Halas N J, Manoharan V N, Nordlander P, Shvets G, Capasso F 2010 Science 328 1135
[3] Lassiter J B, Sobhani H, Fan J A, Kundu J, Capasso F, Nordlander P, Halas N J 2010 Nano Lett.10 3184
[4] Hao F, Sonnefraud Y, Dorpe P V, Maier S A, Halas N J, Nordlander P 2008 Nano Lett. 8 3983
[5] Sonnefraud Y, Verellen N, Sobhani H, Vandenbosch G A E, Moshchalkov V V, Dorpe P V, Nordlander P, Maier S A 2010 ACS Nano 4 1664
[6] Zhang S, Genov D A, Wang Y, Liu M, Zhang X 2008 Phys. Rev. Lett. 101 047401
[7] Zhang S P, Bao K, Halas N J, Xu H X, Nordlander P 2011 Nano Lett. 11 1657
[8] Verellen N, Sonnefraud Y, Sobhani H, Hao F, Moshchalkov V V, Dorpe P V, Nordlander P, Maier S A 2009 Nano Lett. 9 1663
[9] Fang Z Y, Cai J Y, Yan Z B, Nordlander P, Halas N J, Zhu X 2011 Nano Lett. 11 4475
[10] Raether H 1988 Surface Plasmons on Smooth and Rough Surfaces and Gratings (Berlin: Springer Verlag)
[11] Song W T, Lin F, Fang Z Y, Zhu X 2010 Acta Phys. Sin. 59 6921 (in Chinese) [宋文涛, 林峰, 方哲宇, 朱星 2010 59 6921]
[12] Sun M, Liu R J, Li Z Y, Cheng B Y, Zhang D Z, Yang H F, Jin A Z 2006 Chin. Phys. 15 1591
[13] Falk A L, Koppens F H L, Yu C L, Kang K, Snapp N D, Akimov A V, Jo M H, Lukin M D, Park H 2009 Nat. Phys. 5 475
[14] Barnes W L, Dereux A, Ebbesen T W 2003 Nature 124 824
[15] Bozhevolnyi S I, Volkov V S, Devaux E, Laluet J Y, Ebbesen T W 2006 Nature 440 508
[16] Chen J J, Li Z, Zhang J S, Gong Q H 2008 Acta Phys. Sin. 57 5893 (in Chinese) [陈建军, 李智, 张家森, 龚旗煌 2008 57 5893]
[17] Wang L, Cai W, Tan X H, Xiang Y X, Zhang X Z, Xu J J 2011 Acta Phys. Sin. 60 067305 (in Chinese) [王垒, 蔡卫, 谭信辉, 向吟啸, 张心正, 许京军 2011 60 067305]
[18] 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]
[19] Gramotnev D K, Bozhevolnyi S I 2010 Nat. Photon. 4 83
[20] Chen Y Y, Zou R H, Song G, Zhang K, Yu L, Zhao Y F, Xiao J H 2012 Acta Phys. Sin. 61 247301 (in Chinese) [陈园园, 邹仁华, 宋钢, 张恺, 于丽, 赵玉芳, 肖井华 2012 61 247301]
[21] Kekatpur R D, Hryciw A C, Barnard E S, Brongersma M L 2009 Opt. Express 17 24112
[22] Gai H F, Wang J, Tian Q 2007 Appl. Opt. 46 2229
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