Distributed-Bragg-Reflection Assisted Tailoring of Extraordinary Transmission Spectrum in Sub-Wavelength Hole Array

被引：0

作者：

Pandey, Awanish ^{[1
]}

Das, Ritwick ^{[1
]}

机构：

[1] Natl Inst Sci Educ & Res, Sch Phys Sci, Bhubaneswar 751005, Orissa, India

来源：

PLASMONICS | 2014年 / 9卷 / 06期

关键词：

Plasmonics; Photonic bandgap; Bragg reflection; Dispersion; OPTICAL-TRANSMISSION; LIGHT;

D O I：

10.1007/s11468-014-9744-x

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present a novel route to tailor the spectral features of extraordinary transmission (EOT) through sub-wavelength periodic hole array using a distributed-Bragg-reflector (DBR). The photonic stop-bands and high transmission regions in the DBR spectrum results in the creation of new EOT peaks in those spectral regions where conventional EOT spectrum exhibits negligible transmission. Modal-analysis for the composite geometry elucidates that the existence of such unconventional EOT peaks are reinforced by the transmission resonances of DBR. Also, by creating suitable defect states in the DBR transmission spectrum, we show that the bandwidth of conventional EOT peaks could be tailored significantly and narrowed down to less than 0.1-nm linewidth.

引用

页码：1315 / 1321

页数：7