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The magnetic plasmon (MP) modes in metal-dielectric-metal nanosandwich structures are investigated numerically using finite-difference time-domain method. We demonstrate the law of the quality factor in this kind of resonator.According to the MP modes in the nanosandwich structures, we design a series of resonators of this kind in order to investigate how to tune the resonante frequencies of MP modes through tuning the geometrical parameters and the dielectric layer refractive index of resonators, and the obtained result is well consonant with our analysis by the equivalent inductance capacitance circuit. We also investigate the electromagnetic energy confinement of the nanosandwich resonators, and analyse the Q factors of these structures from thermal and radiant points of view, which will guide one in designing new waveguides and lasers based on MP modes.
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Keywords:
- nanosandwich structures /
- magnetic plasmon modes /
- metamaterial /
- magnetic resonance
[1] Citrin D S 1995 Opt. Lett. 20 901
[2] Weber W H, Ford G W 2004 Phys. Rev. B 70 125429
[3] Wang S M, Li T, Liu H, Wang F M, Zhu S N, Zhang X 2008 Appl. Phys. Lett. 93 233102
[4] Ma H, Qu S B, Xu Z, Zhang J Q, Wang J F 2009 Chin. Phys. B 18 1025
[5] Yang Y M, Qu S B, Wang J F, Xu Z 2009 Acta Phys. Sin. 58 1031 (in Chinese) [杨一鸣、屈绍波、王甲富、徐 卓 2009 58 1031]
[6] Zhang S, Fan W, Panoiu N C, Malloy K J, Osgood R M, Brueck S R J 2005 Phys. Rev. Lett. 95 137404
[7] Yuan H K, Chettiar U K, Cai W, Kildishev A V, Boltasseva A, Drachev V P, Shalaev V M 2007 Opt. Express 15 1076
[8] Dolling G, Enkrich C, Wegener M, Soukoulis C M, Linden S 2006 Science 312 892
[9] Liu H, Genov D A, Wu D M, Liu Y M, Steele J M, Sun C, Zhu S N, Zhang X 2006 Phys. Rev. Lett. 97 243902
[10] Dolling G, Wegener M, Schadle A, Bureger S, Iinden S 2006 Appl. Phys. Lett. 89 231118
[11] Prodan E, Radloff C, Halas N J, Nordlander P 2006 Science 302 419
[12] Ordal M A, Bell R J, Alexander R W, Long L L, Querry M R 1985 Opt. Soc. Am. 24 4493
[13] Zhu Z H, Liu H, Wang S M, Li T, Cao J X, Ye W M, Yuan X D, Zhu S N 2009 Appl. Phys. Lett. 94 103
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[1] Citrin D S 1995 Opt. Lett. 20 901
[2] Weber W H, Ford G W 2004 Phys. Rev. B 70 125429
[3] Wang S M, Li T, Liu H, Wang F M, Zhu S N, Zhang X 2008 Appl. Phys. Lett. 93 233102
[4] Ma H, Qu S B, Xu Z, Zhang J Q, Wang J F 2009 Chin. Phys. B 18 1025
[5] Yang Y M, Qu S B, Wang J F, Xu Z 2009 Acta Phys. Sin. 58 1031 (in Chinese) [杨一鸣、屈绍波、王甲富、徐 卓 2009 58 1031]
[6] Zhang S, Fan W, Panoiu N C, Malloy K J, Osgood R M, Brueck S R J 2005 Phys. Rev. Lett. 95 137404
[7] Yuan H K, Chettiar U K, Cai W, Kildishev A V, Boltasseva A, Drachev V P, Shalaev V M 2007 Opt. Express 15 1076
[8] Dolling G, Enkrich C, Wegener M, Soukoulis C M, Linden S 2006 Science 312 892
[9] Liu H, Genov D A, Wu D M, Liu Y M, Steele J M, Sun C, Zhu S N, Zhang X 2006 Phys. Rev. Lett. 97 243902
[10] Dolling G, Wegener M, Schadle A, Bureger S, Iinden S 2006 Appl. Phys. Lett. 89 231118
[11] Prodan E, Radloff C, Halas N J, Nordlander P 2006 Science 302 419
[12] Ordal M A, Bell R J, Alexander R W, Long L L, Querry M R 1985 Opt. Soc. Am. 24 4493
[13] Zhu Z H, Liu H, Wang S M, Li T, Cao J X, Ye W M, Yuan X D, Zhu S N 2009 Appl. Phys. Lett. 94 103
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