Investigating Far-Field Spectra and Near-Field Features of Extraordinary Optical Transmission Through Periodic U- to H-Shaped Apertures

被引：9

作者：

Hsiao, Hui-Hsin

Huang, Hao-Fu ^{[3
]}

Lee, Si-Chen ^{[3
]}

Chang, Hung-Chun ^{[1
,2
]}

机构：

[1] Natl Taiwan Univ, Grad Inst Photon & Optoelect, Dept Elect Engn, Taipei 10617, Taiwan

[2] Natl Taiwan Univ, Grad Inst Commun Engn, Taipei 10617, Taiwan

[3] Natl Taiwan Univ, Grad Inst Elect Engn, Taipei 10617, Taiwan

来源：

IEEE PHOTONICS JOURNAL | 2012年 / 4卷 / 02期

关键词：

Surface plasmons; Wood's anomalies (WAs); apertures; diffraction; infrared; SUBWAVELENGTH HOLES; SURFACE-PLASMONS; ARRAYS; FILM; RESONANCES; MODES;

D O I：

10.1109/JPHOT.2012.2188787

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

By exploiting the in-house finite-difference time-domain (FDTD) program, the optical properties of a designated 2-D array of U- to H-shaped holes perforated on a metallic film are analyzed. Some specific near-field features are found to be associated with the three mechanisms underlying the transmission spectral profiles, namely, excitation of surface electromagnetic (EM) modes, Wood's anomalies (WAs), and shape resonances (SRs), thus providing a way to reveal the physical nature of the enhanced transmission phenomenon.

引用

页码：387 / 398

页数：12

共 28 条

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