Influence of vertex angles on the extraordinary optical transmission characteristics of triangular and bow-tie-shaped apertures

被引：2
作者：
Liu, Hai-Long [1 ]
Wang, Na [1 ]
Liu, Yong-Hong [1 ]
Wu, Xi-Jun [1 ]
机构：
[1] Yanshan Univ, Inst Elect Engn, Measurement Technol & Instrumentat Key Lab Hebei, Qinhuangdao 066004, Hebei, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2010年 / 150卷 / 37-38期
关键词：
Triangular aperture; Bow-tie-shaped aperture; Extraordinary optical transmission; Localized surface plasmon resonance;
D O I：
10.1016/j.ssc.2010.07.003
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The influence of vertex angles on the extraordinary optical transmission (EOT) characteristics of isosceles triangular apertures is numerically investigated with a three-dimensional finite-difference time-domain (FDTD) method. It has been found that the resonant peak characteristics are dependent on the vertex angles of triangular aperture (TA) and the polarized directions of incident light. The resonant peak amplitude is dramatically decreased, when the vertex angle is increased. A blue-shift/red-shift phenomenon is observed in both of the two cases. Detailed studies indicate that the transmission peak characteristics are due to the effects of localized surface plasmon modes excited along the sidewalls and Fabry-Perot-like resonance. The EOT performance of TA arrays is compared with that of the rectangular aperture arrays. In addition, a bow-tie-shaped aperture (BTA) can be recognized as two overlapped TAs. The EOT properties of BTA with varying bow angles are also studied and analyzed. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1822 / 1826
页数：5
相关论文
共 20 条
  • [1] Catchpole KR, 2008, OPT EXPRESS, V16, P21793, DOI 10.1364/OE.16.021793
  • [2] Extraordinary transmission through a silver film perforated with cross shaped hole arrays in a square lattice
    Chen, Chia-Yi
    Tsai, Ming-Wei
    Chuang, Tzu-Hung
    Chang, Yi-Tsung
    Lee, Si-Chen
    [J]. APPLIED PHYSICS LETTERS, 2007, 91 (06)
  • [3] Optical transmission properties of a single subwavelength aperture in a real metal
    Degiron, A
    Lezec, HJ
    Yamamoto, N
    Ebbesen, TW
    [J]. OPTICS COMMUNICATIONS, 2004, 239 (1-3) : 61 - 66
  • [4] Extraordinary optical transmission through sub-wavelength hole arrays
    Ebbesen, TW
    Lezec, HJ
    Ghaemi, HF
    Thio, T
    Wolff, PA
    [J]. NATURE, 1998, 391 (6668) : 667 - 669
  • [5] Enhanced infrared transmission through subwavelength coaxial metallic arrays
    Fan, WJ
    Zhang, S
    Minhas, B
    Malloy, KJ
    Brueck, SRJ
    [J]. PHYSICAL REVIEW LETTERS, 2005, 94 (03)
  • [6] Transmission of light through a single rectangular hole in a real metal
    Garcia-Vidal, F. J.
    Martin-Moreno, L.
    Moreno, Esteban
    Kumar, L. K. S.
    Gordon, R.
    [J]. PHYSICAL REVIEW B, 2006, 74 (15)
  • [7] Optical resonances of bowtie slot antennas and their geometry and material dependence
    Guo, Hongcang
    Meyrath, Todd P.
    Zentgraf, Thomas
    Liu, Na
    Fu, Liwei
    Schweizer, Heinz
    Giessen, Harald
    [J]. OPTICS EXPRESS, 2008, 16 (11): : 7756 - 7766
  • [8] Obtaining super resolution light spot using surface plasmon assisted sharp ridge nanoaperture
    Jin, EX
    Xu, XF
    [J]. APPLIED PHYSICS LETTERS, 2005, 86 (11) : 1 - 3
  • [9] Strong Resonance and Terahertz Wave Transmission Enhancement of Low-Porosity Metal Hole Array with Bow-Tie-Shaped Apertures
    Kato, Eiji
    Suizu, Koji
    Kawase, Kodo
    [J]. APPLIED PHYSICS EXPRESS, 2009, 2 (12)
  • [10] Transmission characteristics of metallic equilateral triangular nanohole arrays
    Kim, Je Hong
    Moyer, Patrick J.
    [J]. APPLIED PHYSICS LETTERS, 2006, 89 (12)
12