Multiple Fano interferences in a plasmonic metamolecule consisting of asymmetric metallic nanodimers

被引:35
作者
Le, Khai Q. [1 ,2 ]
Alu, Andrea [3 ]
Bai, Jing [2 ]
机构
[1] Hoa Sen Univ, Fac Sci & Technol, Ho Chi Minh City, Vietnam
[2] Univ Minnesota, Dept Elect Engn, Duluth, MN 55812 USA
[3] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 77812 USA
关键词
MOLECULAR REFRACTIVITY; ATOMIC INTERACTION; UP-CONVERSION; RESONANCES; NANOPARTICLES; DIMERS; CLUSTERS; QUANTUM; MODES; NANOSTRUCTURES;
D O I
10.1063/1.4905619
中图分类号
O59 [应用物理学];
学科分类号
摘要
We theoretically explore signatures of plasmonic Fano interferences in a subwavelength plasmonic metamolecule consisting of closely packed asymmetric gold nanodimers, which lead to the possibility of generating multiple Fano resonances in the scattering spectrum. This spectral feature is attributed to the interference between bright and dark plasmonic modes sustained by the constituent nanodimers. The excited Fano dips are highly sensitive in both wavelength and amplitude to geometry and background dielectric medium. The tunability of induced Fano resonances associated with enhanced electric fields from the visible to infrared region provides promising applications, particularly in refractive index sensing, light-trapping, and photon up-converting. (C) 2015 AIP Publishing LLC.
引用
收藏
页数:10
相关论文
共 67 条
  • [41] MEEP: A flexible free-software package for electromagnetic simulations by the FDTD method
    Oskooi, Ardavan F.
    Roundy, David
    Ibanescu, Mihai
    Bermel, Peter
    Joannopoulos, J. D.
    Johnson, Steven G.
    [J]. COMPUTER PHYSICS COMMUNICATIONS, 2010, 181 (03) : 687 - 702
  • [42] Distance dependent quenching effect in nanoparticle dimers
    Polemi, Alessia
    Shuford, Kevin L.
    [J]. JOURNAL OF CHEMICAL PHYSICS, 2012, 136 (18)
  • [43] Rahmani M., 2012, LASER PHOTONICS REV, V7, P1
  • [44] Optical properties of two interacting gold nanoparticles
    Rechberger, W
    Hohenau, A
    Leitner, A
    Krenn, JR
    Lamprecht, B
    Aussenegg, FR
    [J]. OPTICS COMMUNICATIONS, 2003, 220 (1-3) : 137 - 141
  • [45] Plasmons in nearly touching metallic nanoparticles: singular response in the limit of touching dimers
    Romero, Isabel
    Aizpurua, Javier
    Bryant, Garnett W.
    Garcia de Abajo, F. Javier
    [J]. OPTICS EXPRESS, 2006, 14 (21): : 9988 - 9999
  • [46] Fano resonances in antennas: General control over radiation patterns
    Rybin, Mikhail V.
    Kapitanova, Polina V.
    Filonov, Dmitry S.
    Slobozhanyuk, Alexey P.
    Belov, Pavel A.
    Kivshar, Yuri S.
    Limonov, Mikhail F.
    [J]. PHYSICAL REVIEW B, 2013, 88 (20)
  • [47] Revealing the quantum regime in tunnelling plasmonics
    Savage, Kevin J.
    Hawkeye, Matthew M.
    Esteban, Ruben
    Borisov, Andrei G.
    Aizpurua, Javier
    Baumberg, Jeremy J.
    [J]. NATURE, 2012, 491 (7425) : 574 - 577
  • [48] Shafiei F, 2013, NAT NANOTECHNOL, V8, P95, DOI [10.1038/nnano.2012.249, 10.1038/NNANO.2012.249]
  • [49] Molecular refractivity and atomic interaction.
    Silberstein, L.
    [J]. PHILOSOPHICAL MAGAZINE, 1917, 33 (193-98) : 92 - 128
  • [50] Dispersion and the size of molecules of hydrogen, oxygen, and nitrogen.
    Silberstein, L.
    [J]. PHILOSOPHICAL MAGAZINE, 1917, 33 (193-98) : 215 - 222