Open AccessTailoring optical transmission via the arrangement of compound subwavelength hole arrays
Author(s) -
Jianqiang Liu,
Meng-Dong He,
Xiang Zhai,
Lingling Wang,
Shuangchun Wen,
Li Chen,
Zhang Shao,
Qing Wan,
B. S. Zou,
Jianquan Yao
Publication year - 2009
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.17.001859
Subject(s) - optics , surface plasmon polariton , finite difference time domain method , surface plasmon , extraordinary optical transmission , polarization (electrochemistry) , surface plasmon resonance , perpendicular , materials science , plasmon , metamaterial , ray , physics , resonance (particle physics) , refractive index , transmission coefficient , transmission (telecommunications) , geometry , atomic physics , chemistry , mathematics , electrical engineering , engineering , nanoparticle , nanotechnology
The transmission properties of light through metal films with compound periodic subwavelength hole arrays is numerically investigated by using the finite-difference time-domain (FDTD) method. The sharp dips in the transmission bands, together with the suppression of surface Plasmon resonance (SPR) (0, 1) peak, are found when two square holes in every unit cell are arranged asymmetrically along the polarization direction of the incident light. However, the shape of transmission spectra is not sensitive to the symmetry if the holes are arranged perpendicular to the propagation direction of surface plasmon polaritons (SPPs). The physics origin of these phenomena is explained qualitatively by the phase resonance of SPPs.