作者
Maidul Islam, Dibakar Roy Chowdhury, Amir Ahmad, Gagan Kumar
发表日期
2017/12/1
期刊
Journal of Lightwave Technology
卷号
35
期号
23
页码范围
5215-5221
出版商
IEEE
简介
In this paper, we investigate sensing capabilities of a planar plasmonic terahertz waveguide. The waveguide is comprised of one-dimensional array of periodically arranged subwavelength scale corrugations in the form of rectangular dimples in order to ensure the plasmonic response. The terahertz waveguide transmission is observed for polyimide (as thin film) substance filling the dimples. The refractive index of the polyimide film is varied to examine various sensing parameters such as frequency shift, sensitivity, and figure of merit of the fundamental plasmonic resonance supported by the waveguide. We employ a semianalytical transmission line circuit model to elucidate our numerical observations. In efforts to improve sensing characteristics, we also examine sensing capabilities of a plasmonic waveguide having V-shaped corrugations and compare results with that of rectangular dimples. The proposed …
学术搜索中的文章
M Islam, DR Chowdhury, A Ahmad, G Kumar - Journal of Lightwave Technology, 2017