Investigation of enhanced and suppressed optical transmission through a cupped surface metallic grating structure | Zendy

Changjun Min | Zendy; Xiaojin Jiao | Zendy; Pei Wang | Zendy; Hai Ming | Zendy

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Investigation of enhanced and suppressed optical transmission through a cupped surface metallic grating structure

Author(s) -

Changjun Min,

Xiaojin Jiao,

Pei Wang,

Hai Ming

Publication year - 2006

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.14.005657

Subject(s) - optics , extraordinary optical transmission , grating , surface plasmon , finite difference time domain method , diffraction , diffraction grating , transmission (telecommunications) , materials science , surface plasmon polariton , coupling (piping) , surface (topology) , phase (matter) , coupled mode theory , physics , plasmon , refractive index , telecommunications , geometry , mathematics , quantum mechanics , computer science , metallurgy

Two-dimensional finite-difference time-domain (FDTD) method has been performed to numerically investigate the transmission through a one-dimension cupped surface metallic grating structure. The concept of coupling of optical modes in the notches and main slits, introduced by Crouse and Keshavareddy [1], is examined further in our work. Unexpected phenomenon is shown that even horizontal surface plasmons (HSPs) are inhibited, the transmission still can be enhanced or suppressed. And the periodicity of transmission depending on the phase change of the light striking on the grating surface is discovered. A hybrid optical mode combined by cavity mode and diffracted evanescent wave mode [2] is introduced to analyze the phenomenon.

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