Optical transmission enhancement of two-dimensional subwavelength hole arrays in metallic films | Zendy

Yi Yong-Xiang | Zendy; Guoping Wang | Zendy; Yongbing Long | Zendy; Hong Shan | Zendy

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Optical transmission enhancement of two-dimensional subwavelength hole arrays in metallic films

Author(s) -

Yi Yong-Xiang,

Guoping Wang,

Yongbing Long,

Hong Shan

Publication year - 2003

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.52.604

Subject(s) - materials science , extraordinary optical transmission , surface plasmon , excitation , transmission (telecommunications) , metal , optoelectronics , coupling (piping) , optics , surface (topology) , plasmon , surface plasmon polariton , physics , telecommunications , geometry , mathematics , quantum mechanics , computer science , metallurgy

Numerical simulation has been performed on the optical transmission enhancement of a metallic film with a two-dimensional subwavelength hole array- The results show that the ideal conducting film of the same array structure also presents a transmission enhancement, but the enhancement is not higher than that of the real one- Further analysis reveals that a complicated waveguide coupling effect is responsible for the enhanced transmission- The excitation of surface current on metallic surface transfers the light energy of incidence from metallic surfaces to the holes and then adjusts the optical transmission- We believe that the resonant excitation of surface plasmon is not necessary for the enhancement effect-

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