Trimodal polymer waveguide interferometer for chemical sensing

被引：7

作者：

Ebihara, Keito ^{[1
]}

Uchiyamada, Ken ^{[1
]}

Asakawa, Kiyoshi ^{[1
]}

Okubo, Kyohei ^{[2
]}

Suzuki, Hiroaki ^{[1
]}

机构：

[1] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058573, Japan

[2] Tokyo Univ Sci, Dept Mat Sci & Technol, Tokyo 1258585, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2019年 / 58卷 / 06期

关键词：

BIOSENSOR; DIAGNOSIS;

D O I：

10.7567/1347-4065/ab2221

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A trimodal polymer waveguide interferometer was fabricated for bio/chemical sensing. Dual single-mode waveguides were used for the input and output ports to improve coupling efficiency in the trimodal waveguide. The performance of the interferometer was characterized via numerical simulation. Based on the analysis results, the optimum dimensions of the waveguide structures were determined, and the interferometer was actually fabricated using electron-beam lithography. The obtained results agreed well with those obtained via simulation. To demonstrate the applicability of the interferometer in biosensing, detection of glucose was conducted. A linear relationship between the phase change and glucose concentration was observed, which suggests potential applications of the TriMW interferometer in bio/chemical sensing. (C) 2019 The Japan Society of Applied Physics

引用

页数：6

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