Deposition of Ta2O5 upon silver nanorods as an ultra-thin light absorber

被引：8
作者：
Jen, Yi-Jun [1 ]
Lin, Meng-Jie [1 ]
Chau, Yuan-Fong [2 ]
Jheng, Ci-Yao [1 ]
机构：
[1] Natl Taipei Univ Technol, Dept Electopt Engn, Taipei 106, Taiwan
[2] Chien Hsin Univ Sci & Technol, Dept Elect Engn, Jhongli 32097, Taoyuan County, Taiwan
来源：
THIN SOLID FILMS | 2014年 / 567卷
关键词：
Ultra-thin light absorber; Glancing angle deposition; Silver Nanorod array; NEGATIVE REFRACTIVE-INDEX; FILMS;
D O I：
10.1016/j.tsf.2014.07.039
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report the plasmon-assisted absorption enhancement of an ultra-thin light absorber composed of an Ag nanorod array with Ta2O5 deposited upon each rod. A significant increase in the absorptance efficiency of the plasmonic Ta2O5-capped Ag nanorod array was experimentally observed both in s-and p-polarization states. The causes of the enhanced local electric field intensity were systematically investigated using three-dimensional finite difference time domain. The simulations show that the maximum E-field intensities measured at the end surface of the Ta2O5-capped Ag rod are higher than those obtained from the bare Ag nanorod. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：38 / 46
页数：9
相关论文
共 23 条
  • [1] Negative permittivity and permeability of gold square nanospirals
    Abdeddaim, R.
    Guida, G.
    Priou, A.
    Gallas, B.
    Rivory, J.
    [J]. APPLIED PHYSICS LETTERS, 2009, 94 (08)
  • [2] Broadband polarization-independent resonant light absorption using ultrathin plasmonic super absorbers
    Aydin, Koray
    Ferry, Vivian E.
    Briggs, Ryan M.
    Atwater, Harry A.
    [J]. NATURE COMMUNICATIONS, 2011, 2
  • [3] Three-dimensional analysis of surface plasmon resonance modes on a gold nanorod
    Chau, Yuan-Fong
    Chen, Min Wei
    Tsai, Din Ping
    [J]. APPLIED OPTICS, 2009, 48 (03) : 617 - 622
  • [4] DISCRETE-DIPOLE APPROXIMATION FOR SCATTERING CALCULATIONS
    DRAINE, BT
    FLATAU, PJ
    [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1994, 11 (04): : 1491 - 1499
  • [5] Surface enhanced fluorescence
    Fort, Emmanuel
    Gresillon, Samuel
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (01)
  • [6] Metal/dielectric/metal sandwich film for broadband reflection reduction
    Jen, Yi-Jun
    Lakhtakia, Akhlesh
    Lin, Meng-Jie
    Wang, Wei-Hao
    Wu, Huang-Ming
    Liao, Hung-Sheng
    [J]. SCIENTIFIC REPORTS, 2013, 3
  • [7] Near-field simulation of obliquely deposited surface-enhanced Raman scattering substrates
    Jen, Yi-Jun
    Suzuki, Motofumi
    Wang, Yung-Hsiang
    Lin, Meng-Jie
    [J]. JOURNAL OF APPLIED PHYSICS, 2012, 112 (11)
  • [8] Deposited metamaterial thin film with negative refractive index and permeability in the visible regime
    Jen, Yi-Jun
    Chen, Chih-Hui
    Yu, Ching-Wei
    [J]. OPTICS LETTERS, 2011, 36 (06) : 1014 - 1016
  • [9] OPTICAL CONSTANTS OF NOBLE METALS
    JOHNSON, PB
    CHRISTY, RW
    [J]. PHYSICAL REVIEW B, 1972, 6 (12) : 4370 - 4379
  • [10] Negative refractive index in optics of metal-dielectric composites
    Kildishev, AV
    Cai, WS
    Chettiar, UK
    Yuan, HK
    Sarychev, AK
    Drachev, VP
    Shalaev, VM
    [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2006, 23 (03) : 423 - 433
123