Optical Transmission Enhancement and Tuning by Overylaying Liquid Crystals on a Gold Film with Patterned Nanoholes

被引：29

作者：

Liu, Y. J. ^{[1
]}

Leong, Eunice S. P. ^{[1
]}

Wang, B. ^{[1
]}

Teng, J. H. ^{[1
]}

机构：

[1] ASTAR, Inst Mat Res & Engn, Singapore 117602, Singapore

来源：

PLASMONICS | 2011年 / 6卷 / 04期

关键词：

Optical transmission; Nanohole array; Dual-frequency liquid crystal; Surface plasmon polariton; SUBWAVELENGTH HOLE ARRAYS; EVANESCENT-WAVE MODEL; EXTRAORDINARY TRANSMISSION; LIGHT TRANSMISSION; SURFACE-PLASMONS; NOBLE-METALS; APERTURES; CONSTANTS; GRATINGS; CELL;

D O I：

10.1007/s11468-011-9248-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：

A gold film with subwavelength nanoholes on a glass substrate was fabricated through electron beam lithography and its extraordinary optical transmission (EOT) was characterized. By applying a liquid crystal overlayer to the gold film, its EOT can be further enhanced by similar to 11% due to the refractive index matching of the dielectric media on its two sides. By controlling the alignment of the liquid crystal molecules, a highly reversible and reproducible tuning of the transmission peak in both intensity and position is demonstrated.

引用

页码：659 / 664

页数：6

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