Ultra-elongated depth of focus of plasmonic lenses with concentric elliptical slits under Gaussian beam illumination

doi:10.1088/1674-1056/22/9/090206

Abstract In this paper, we discuss the influence of ratio of minor to major axis on the propagation property and focusing performance of a plasmonic lens with variant periodic concentric elliptical slits illuminating under a Gaussian beam. In order to analyse the influence theoretically, a finite-difference time-domain (FDTD) numerical algorithm is adopted for the computational numerical calculation and the design of the plasmonic structure. The structure is flanked with penetrated slits through a 200-nm metal film (Au) which is coated on a quartz substrate. Tunability of focusing capability of the plasmonic lenses is studied by tailoring the ratio. Our calculation results demonstrate that the ratio of the elliptical slits greatly affects the focusing capability of the lense. The plasmonic lenses with concentric elliptical slits illuminating under a Gaussian beam have ultra-elongated depth of focus. These results are very encouraging for the future study of the plasmonic lens-based applications.

Keywords: ultra-elongated depth of focus plasmonic lenses elliptical slits finite-difference time-domain

Received: 27 December 2012
Revised: 24 February 2013
Accepted manuscript online:

PACS:	02.70.-c	(Computational techniques; simulations)
	41.20.Jb	(Electromagnetic wave propagation; radiowave propagation)
	42.30.-d	(Imaging and optical processing)
	42.79.Bh	(Lenses, prisms and mirrors)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11079014 and 61077010).

Corresponding Authors: Fu Yong-Qi
E-mail: yqfu@uestc.edu.cn

Cite this article:

Wang Jing (王婧), Fu Yong-Qi (付永启) Ultra-elongated depth of focus of plasmonic lenses with concentric elliptical slits under Gaussian beam illumination 2013 Chin. Phys. B 22 090206

[1]	Barnes W L, Dereux A and Ebbesen T W 2003 Nature 424 824
[2]	Martin-Moreno L, Garcia-Vidal F J, Lezec H J, Pellerin K M, Thio T, Pendry J B and Ebbesen T W 2001 Phys. Rev. Lett 86 1114
[3]	Levy U, Abashin M, Ikeda K, Krishnamoorthy A, Cunningham J and Fainman Y 2007 Phys. Rev. Lett. 98 243901
[4]	Ebbesen T W, Lezec H J, Ghaemi H F, Thio T and Wolff P A 1988 Nature 391 667
[5]	Fu Y Q, Zhou W and Lim L E N 2008 J. Opt. Soc. Am. A 25 238
[6]	Fu Y Q, Zhou X L and Zhao W 2009 J. Comput. Theor. Nano 6 617
[7]	Liang G F, Zhao Q, Chen X, Wang C T, Zhao Z Y and Luo X G 2012 Acta Phys. Sin. 61 104203 (in Chinese)
[8]	Zhong R B, Liu W H, Zhou J and Liu S G 2012 Chin. Phys. B 21 117303
[9]	Ya F Y, Zhou W J, Liu A J, Chen W, Wang Y F, Yan X Y and Zheng W H 2011 Chin. Phys. B 20 087301
[10]	Lee H, Xiong Y, Fang N, Srituravanich W, Durant S, Ambati M, Sun C and Zhang X 2005 New J. Phys. 7 255
[11]	Shankaran D R, Gobi K V and Miura N 2007 Sens. Actuators B 121 158
[12]	Pumera M, Sánchez S, Ichinose I and Tang J 2007 Sens. Actuators B 123 1195
[13]	Descrovi E, Vaccaro L, Nakagawa W, Aeschimann L, Staufer U and Herzig H P 2004 Appl. Phys. Lett. 85 5340
[14]	Fu Y Q, Zhou W, Lim L E N, Du C L and Luo X G 2007 Appl. Phys. Lett. 91 061124
[15]	Lerman G M, Yanai A and Levy U 2009 Nano Lett. 9 2139
[16]	Shi H F, Wang C T, Du C L, Luo X G, Dong X C and Gao H T 2006 Opt. Express 13 6815
[17]	Kim S, Lim Y, Kim H, Park J and Lee B 2008 Appl. Phys. Lett. 92 013103
[18]	Kim H C, Ko H and Cheng M 2009 Opt. Express 17 3078
[19]	Fang Z Y, Lin C F, Ma R M, Huang S and Zhu X 2010 ACS Nano 4 75
[20]	Neacsu C C, Berweger S, Olmon R L, Saraf L V, Ropers C and Raschke M B 2010 Nano Lett. 10 592
[21]	Lin L, Xiao M G, McGuinness L P and Roberts A 2010 Nano Lett. 10 1936
[22]	Lerman G M, Yanai A, Ben-Yosef N and Levy U 2010 Opt. Express 18 10871
[23]	Maier S 2007 Plasmonics: Fundamentals and Applications (New York: Springer) p. 158
[24]	Genet C and Ebbesen T W 2007 Nature 445 39

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Ultra-elongated depth of focus of plasmonic lenses with concentric elliptical slits under Gaussian beam illumination

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