Optical transmission of planar metallic films coated by two-dimensional colloidal crystals | Zendy

Haiyang Lu | Zendy; Chaojun Tang | Zendy; Wei Du | Zendy; Fanxin Liu | Zendy; Yue Xing | Zendy; Peng Zhan | Zendy; Zhuo Chen | Zendy; Zhenlin Wang | Zendy

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Optical transmission of planar metallic films coated by two-dimensional colloidal crystals

Author(s) -

Haiyang Lu,

Chaojun Tang,

Wei Du,

Fanxin Liu,

Yue Xing,

Peng Zhan,

Zhuo Chen,

Zhenlin Wang

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.011698

Subject(s) - materials science , planar , quantum tunnelling , optics , colloid , colloidal crystal , metal , excited state , thin film , polariton , condensed matter physics , molecular physics , optoelectronics , nanotechnology , physics , atomic physics , chemistry , computer graphics (images) , computer science , metallurgy

Optical transmissions through a continuous planar metal film (without holes) with two-dimensional colloidal crystals coated on one or both interfaces have been experimentally and numerically investigated. Enhanced optical transmissions in the near-infrared regime can be observed for the metal film with identical two-dimensional colloidal crystals coated on both sides, which occur due to the resonant tunneling of surface polariton Bloch eigenmodes excited on periodically structured interfaces. Numerical simulations of transmission spectra show an excellent agreement with the measured ones. Additionally, the numerical simulations reveal that the intensity of tunneling transmission is strongly dependent on the relative shift of the two-dimensional colloidal crystals on the opposite interfaces of the metallic film.

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