Multifunctional disk device for optical switch and temperature sensor

被引：18

作者：

Bian Zhen-Yu ^{[1
]}

Liang Rui-Sheng ^{[1
]}

Zhang Yu-Jing ^{[1
]}

Yi Li-Xuan ^{[1
]}

Lai Gen ^{[1
]}

Zhao Rui-Tong ^{[1
]}

机构：

[1] S China Normal Univ, Sch Informat & Optoelect Sci & Engn, Guangdong Prov Key Lab Nanophoton Funct Mat & Dev, Guangzhou 510006, Guangdong, Peoples R China

来源：

CHINESE PHYSICS B | 2015年 / 24卷 / 10期

基金：

中国国家自然科学基金;

关键词：

surface plasmon polaritons; optical switch; modulation depth; temperature sensor; figure of merit; PLASMONIC WAVE-GUIDE; RING-RESONATOR; FILTERS; METAL;

D O I：

10.1088/1674-1056/24/10/107801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A multifunctional surface plasmon polariton disk device coupled by two metal-insulator-metal (MIM) waveguides is proposed and investigated numerically with finite-difference time-domain simulation. It can be used as optical switch and temperature sensor by filling disk with liquid crystal and ethanol, respectively. The simulation results demonstrate that the transmission characteristics of an optical switch can be manipulated by adjusting the radius of disk and the slit width between disk and MIM waveguides. The transmittance and modulation depth of optical switch at 1550 nm are up to 64.82% and 17.70 dB, respectively. As a temperature sensor, its figure of merit can reach 30.46. In this paper, an optical switch with better efficiency and a temperature sensor with better sensitivity can be achieved.

引用

页数：4

共 17 条

[1] Channel plasmon subwavelength waveguide components including interferometers and ring resonators [J].