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Coaxial nanoring structures have attracted extensive attention in recent years due to their peculiar optical properties. In this article, we investigate two different types of resonances in plasmonic Fabry-Pérot cavities, planar surface plasmon and propagating surface plasmon. Using nanoring arrays with the same periodicity and different gaps, we can tune propagating surface plasmons and finally filter individual colors out. With large periodicities, planar surface plasmon resonance can be fixed in the near infrared range to avoid any disturbance on propagating surface plasmon resonance which is located in visible frequencies. In this work, we filter a broadband white source into different colors by using nanoring arrays with a fixed periodicity of 1200 nm and varying gaps range from 10 nm to 180 nm (in steps of 10 nm). Compared with one-dimensional nanoslits or metal-insulator-metal (MIM) nanogratings, nanoring structures present polarization independence to the incident light, leading to more functional devices and broader applications (applicable to natural light, for instance). Finite-difference time-domain (FDTD) simulations accord well with measurements, which confirms our conclusions and supports our explanations.
[1] Ebbesen T W, Lezec H J, Ghaemi H F, Thio T, Wolff P A 1997 Nature 391 667
[2] Wang K, Yang G, Long H, Li Y H, Dai N L, Lu P Y 2008 Acta Phys. Sin. 57 3862 (in Chinese) [王凯, 杨光, 龙华, 李玉华, 戴能利, 陆培祥 2008 57 3862]
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[4] Pendry J B, Schurig D, Smith D R 2006 Science 312 1780
[5] Laux E, Genet C, Skauli T, Ebbesen T W 2008 Nat. Photonics 2 161
[6] Mo D, Liu J, Duan J L, Yao H J, Hou M D, Sun Y M, Chen Y F, Xue Z H, Zhang L 2009 Acta Phys. Sin. 58 2599 (in Chinese) [莫丹, 刘杰, 段敬来, 姚会军, 侯明东, 孙友梅, 陈艳峰, 薛智浩, 张苓 2009 58 2599]
[7] Li X L, Zhang Z D, Wang H Y, Xiong Z H, Zhang Z Y 2011 Acta Phys. Sin. 60 047807 (in Chinese) [李雪莲, 张志东, 王红艳, 熊祖洪, 张中月 2011 60 047807]
[8] Zhao S, Yin J B, Zhao X P 2010 Acta Phys. Sin. 59 3302 (in Chinese) [赵晟, 尹剑波, 赵晓鹏 2010 59 3302]
[9] Li S, Zhong M L, Zhang L J, Xiong Z H, Zhang Z Y 2011 Acta Phys. Sin. 60 087806 (in Chinese) [李山, 钟明亮, 张礼杰, 熊祖洪, 张中月 2011 60 087806]
[10] Wang K, Long H, Fu M, Yang G, Lu P X 2010 Opt. Lett. 35 1560
[11] Xu T, Wu Y K, Luo X G, Guo L J 2010 Nat. Commun. 1 59
[12] Park H J, Xu T, Lee J Y, Ledbetter A, Guo L J 2011 ACS Nano 5 7055
[13] Cho E H, Kim H S, Cheong B H, Prudnikov O, Xianyua W, Sohn J S, Ma D J, Choi H Y, Park N C, Park Y P 2009 Opt. Express 17 8621
[14] Seo K, Wober M, Steinvurzel P, Schonbrun E, Dan Y, Ellenbogen T, Crozier K B 2011 Nano Lett. 11 1851
[15] Ellenbogen T, Seo K, Crozier K B 2012 Nano Lett. 12 1026
[16] Zhong M L, Li S, Xiong Z H, Zhang Z Y 2012 Acta Phys. Sin. 61 027803 (in Chinese) [钟明亮, 李山, 熊祖洪, 张中月2012 61 027803]
[17] Si G Y, Teo E J, Bettiol A A, Teng J H, Danner A J 2010 J. Vac. Sci. Technol. B 28 316
[18] Si G Y, Danner A J, Teo S L, Teo E J, Teng J H, Bettiol A A 2011 J. Vac. Sci. Technol. B 29 021205
[19] Haftel M I, Schlockermann C, Blumberg G 2007 Appl. Phys. Lett. 90 251107
[20] Poujet Y, Salvi J, Baida F I 2007 Opt. Lett. 32 2942
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[1] Ebbesen T W, Lezec H J, Ghaemi H F, Thio T, Wolff P A 1997 Nature 391 667
[2] Wang K, Yang G, Long H, Li Y H, Dai N L, Lu P Y 2008 Acta Phys. Sin. 57 3862 (in Chinese) [王凯, 杨光, 龙华, 李玉华, 戴能利, 陆培祥 2008 57 3862]
[3] Pendry J B 2000 Phys. Rev. Lett. 85 3966
[4] Pendry J B, Schurig D, Smith D R 2006 Science 312 1780
[5] Laux E, Genet C, Skauli T, Ebbesen T W 2008 Nat. Photonics 2 161
[6] Mo D, Liu J, Duan J L, Yao H J, Hou M D, Sun Y M, Chen Y F, Xue Z H, Zhang L 2009 Acta Phys. Sin. 58 2599 (in Chinese) [莫丹, 刘杰, 段敬来, 姚会军, 侯明东, 孙友梅, 陈艳峰, 薛智浩, 张苓 2009 58 2599]
[7] Li X L, Zhang Z D, Wang H Y, Xiong Z H, Zhang Z Y 2011 Acta Phys. Sin. 60 047807 (in Chinese) [李雪莲, 张志东, 王红艳, 熊祖洪, 张中月 2011 60 047807]
[8] Zhao S, Yin J B, Zhao X P 2010 Acta Phys. Sin. 59 3302 (in Chinese) [赵晟, 尹剑波, 赵晓鹏 2010 59 3302]
[9] Li S, Zhong M L, Zhang L J, Xiong Z H, Zhang Z Y 2011 Acta Phys. Sin. 60 087806 (in Chinese) [李山, 钟明亮, 张礼杰, 熊祖洪, 张中月 2011 60 087806]
[10] Wang K, Long H, Fu M, Yang G, Lu P X 2010 Opt. Lett. 35 1560
[11] Xu T, Wu Y K, Luo X G, Guo L J 2010 Nat. Commun. 1 59
[12] Park H J, Xu T, Lee J Y, Ledbetter A, Guo L J 2011 ACS Nano 5 7055
[13] Cho E H, Kim H S, Cheong B H, Prudnikov O, Xianyua W, Sohn J S, Ma D J, Choi H Y, Park N C, Park Y P 2009 Opt. Express 17 8621
[14] Seo K, Wober M, Steinvurzel P, Schonbrun E, Dan Y, Ellenbogen T, Crozier K B 2011 Nano Lett. 11 1851
[15] Ellenbogen T, Seo K, Crozier K B 2012 Nano Lett. 12 1026
[16] Zhong M L, Li S, Xiong Z H, Zhang Z Y 2012 Acta Phys. Sin. 61 027803 (in Chinese) [钟明亮, 李山, 熊祖洪, 张中月2012 61 027803]
[17] Si G Y, Teo E J, Bettiol A A, Teng J H, Danner A J 2010 J. Vac. Sci. Technol. B 28 316
[18] Si G Y, Danner A J, Teo S L, Teo E J, Teng J H, Bettiol A A 2011 J. Vac. Sci. Technol. B 29 021205
[19] Haftel M I, Schlockermann C, Blumberg G 2007 Appl. Phys. Lett. 90 251107
[20] Poujet Y, Salvi J, Baida F I 2007 Opt. Lett. 32 2942
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