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

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

中国物理B ›› 2013, Vol. 22 ›› Issue (9): 90206-090206.doi: 10.1088/1674-1056/22/9/090206

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

王婧, 付永启

School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China

收稿日期:2012-12-27 修回日期:2013-02-24 出版日期:2013-07-26 发布日期:2013-07-26
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11079014 and 61077010).

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

Wang Jing (王婧), Fu Yong-Qi (付永启)

School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China

Received:2012-12-27 Revised:2013-02-24 Online:2013-07-26 Published:2013-07-26
Contact: Fu Yong-Qi E-mail:yqfu@uestc.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11079014 and 61077010).

摘要/Abstract

摘要： 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.

关键词: ultra-elongated depth of focus, plasmonic lenses, elliptical slits, finite-difference time-domain

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.

Key words: ultra-elongated depth of focus, plasmonic lenses, elliptical slits, finite-difference time-domain

中图分类号: (Computational techniques; simulations)

02.70.-c

41.20.Jb (Electromagnetic wave propagation; radiowave propagation) 42.30.-d (Imaging and optical processing) 42.79.Bh (Lenses, prisms and mirrors)

王婧, 付永启. Ultra-elongated depth of focus of plasmonic lenses with concentric elliptical slits under Gaussian beam illumination[J]. 中国物理B, 2013, 22(9): 90206-090206.

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[J]. Chin. Phys. B, 2013, 22(9): 90206-090206.

参考文献 24

[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

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

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

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献 24

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	Yun Lin(林蕴), Shuo Shen(申烁), Xiang Gao(高祥), and Liancheng Wang(汪炼成). Lattice plasmon mode excitation via near-field coupling[J]. 中国物理B, 2022, 31(1): 14214-014214.
[2]	廖文渊, 李健, 李川川, 郭小峰, 郭文涛, 刘维华, 张杨杰, 韦欣, 谭满清. Oxide-aperture-dependent output characteristics of circularly symmetric VCSEL structure[J]. 中国物理B, 2020, 29(2): 24201-024201.
[3]	周俊, 张建烁, 冼国裕, 齐琦, 顾尚志, 申承民, 成昭华, 何声太, 杨海涛. Synthesis and surface plasmon resonance of Au-ZnO Janus nanostructures[J]. 中国物理B, 2019, 28(8): 83301-083301.
[4]	陈安涛, 孙浩宇, 韩一平, 汪加洁, 崔志伟. Propagation characteristics of oblique incidence terahertz wave through non-uniform plasma[J]. 中国物理B, 2019, 28(1): 14201-014201.
[5]	王莹, 李新化. Light trapping and optical absorption enhancement in vertical semiconductor Si/SiO₂ nanowire arrays[J]. 中国物理B, 2018, 27(2): 26102-026102.
[6]	梁图禄, 邵维, 魏晓琨, 梁木生. Hybrid sub-gridding ADE-FDTD method of modeling periodic metallic nanoparticle arrays[J]. 中国物理B, 2018, 27(10): 100204-100204.
[7]	马秀荣, 徐林, 常世元, 张双根. Investigation of three-pulse photon echo in thick crystal using finite-difference time-domain method[J]. 中国物理B, 2017, 26(4): 44201-044201.
[8]	窦虎, 马红梅, 孙玉宝. Optical simulation of in-plane-switching blue phase liquid crystal display using the finite-difference time-domain method[J]. 中国物理B, 2016, 25(9): 94221-094221.
[9]	卢佳, 周怀春. Finite-difference time-domain modeling of curved material interfaces by using boundary condition equations method[J]. 中国物理B, 2016, 25(9): 90203-090203.
[10]	李旭峰, 彭伟, 赵亚丽, 王乔, 魏计林. A subwavelength metal-grating assisted sensor of Kretschmann style for investigating the sample with high refractive index[J]. 中国物理B, 2016, 25(3): 37303-037303.
[11]	魏晓琨, 邵维, 石胜兵, 张勇, 王秉中. An efficient locally one-dimensional finite-difference time-domain method based on the conformal scheme[J]. 中国物理B, 2015, 24(7): 70203-070203.
[12]	王玥, 王建国, 陈再高. Uniform stable conformal convolutional perfectly matched layer for enlarged cell technique conformal finite-difference time-domain method[J]. 中国物理B, 2015, 24(2): 24101-024101.
[13]	刘菊, 钟晓岚, 李志远. Enhanced light absorption of silicon in the near-infrared band by designed gold nanostructures[J]. 中国物理B, 2014, 23(4): 47306-047306.
[14]	刘亚文, 陈亦望, 张品, 刘宗信. A spherical higher-order finite-difference time-domain algorithm with perfectly matched layer[J]. , 2014, 23(12): 124102-124102.
[15]	章春来, 袁晓东, 向霞, 王治国, 刘春明, 李莉, 贺少勃, 祖小涛. Rear-surface light intensification caused by Hertzian-conical crack in 355-nm silica optics[J]. 中国物理B, 2012, 21(9): 94213-094213.