Novel dielectric loaded plasmonic waveguide based Bragg reflector and high Q-factor micro-cavity

被引：0
|
作者：
Kang, Zhe [1 ]
Yuan, Jinhui [1 ,2 ]
Yu, Chongxiu [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
[2] S China Normal Univ, Lab Nanophoton Funct Mat & Devices, Guangzhou 510006, Guangdong, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2014年 / 326卷
基金：
中国国家自然科学基金;
关键词：
Surface plasmon polaritons; Bragg reflector; Micro-cavity; Photonic band gap; GRATINGS;
D O I：
10.1016/j.optcom.2014.04.030
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, a novel compact Bragg reflector and high-Q micro-cavity based on dielectric-loaded surface plasmon polariton waveguide (DLSPPW) are proposed. The Bragg reflector is formed by a finite array of periodic variations in the dielectric materials of the DLSPPW. The simulation results show that the proposed Bragg reflector has a much lower loss compared to conventional metal-insulator-metal (MIM) plasmonic Bragg reflectors at the expense of relatively loosen mode size. In addition micro-cavity formed by introducing a defect within the Bragg grating is also investigated, whose quality factor can reach as high as 774 at the wavelength of 1550 nm. (C) 2014 Elsevier B.V. All rights reserved
引用
收藏
页码：139 / 143
页数：5
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