High y sensitive dual-core photonic crystal fiber based on a surface plasmon resonance sensor with a silver nano-continuous grating

被引：38

作者：

Jiao, Shengxi ^{[1
]}

Gu, Sanfeng ^{[1
]}

Yang, Hanrui ^{[1
]}

Fang, Hairui ^{[1
]}

Xu, Shibo ^{[1
]}

机构：

[1] Northeast Elect Power Univ, Inst Adv Sensor Technol, Jilin 132012, Jilin, Peoples R China

来源：

APPLIED OPTICS | 2018年 / 57卷 / 28期

基金：

中国国家自然科学基金;

关键词：

THEORETICAL-ANALYSIS; OPTICAL-FIBER; BIOSENSOR; LAYER; SPECTROSCOPY; NANOWIRES; DESIGN;

D O I：

10.1364/AO.57.008350

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Two kinds of photonic crystal fiber (PCF) sensors based on surface plasmon resonance (SPR) with silver nanocontinuous gratings (i) and (ii) are designed. The coupling characteristics and sensing properties are analyzed numerically by the finite element method (FEM). The results show that the proposed sensor based on silver nano-continuous grating (1) can achieve better performance than that of the sensors based on silver nanocontinuous grating (ii) and plane silver film structures. When the segmented number is 50 and segmented angle is 0.5 degrees, a wavelength sensitivity of the proposed sensor with silver nano-continuous grating (i) is obtained as high as 13,600 nm/RIU in the refractive index (RI) range from 1.330 to 1.365, corresponding to a maximum RI resolution of 7.35 x 10(-6) RIU, which can have promising applications in medical and environmental monitoring and biochemical detection. (C) 2018 Optical Society of America

引用

页码：8350 / 8358

页数：9

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