Design and numerical analysis of a circular SPR based PCF biosensor for aqueous environments

被引：14

作者：

Opoku, Gideon ^{[1
]}

Danlard, Iddrisu ^{[1
]}

Dede, Albert ^{[1
]}

Akowuah, Emmanuel Kofi ^{[1
]}

机构：

[1] Kwame Nkrumah Univ Sci & Technol, Dept Comp Engn, Kumasi, Ghana

来源：

RESULTS IN OPTICS | 2023年 / 12卷

关键词：

Biosensor; Photonic crystal fiber; Surface plasmon resonance; Wide-ranged; Refractive index; Aqueous environments; SURFACE-PLASMON RESONANCE; PHOTONIC CRYSTAL FIBER; FOOD;

D O I：

10.1016/j.rio.2023.100432

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper presents the design and numerical analysis of a circular photonic crystal fiber (PCF) biosensor based on surface plasmon resonance (SPR) for aqueous environments. The proposed biosensor has a geometrical design that uses the cladding at the fiber's exterior to simplify the gold and analyte deposition process. The sensing characteristics and performances of the proposed biosensor are fully investigated with the finite element method. The investigation indicates that the plasmonic material's thickness affects the biosensor's performance. The results of the proposed biosensor demonstrate a wide refractive index range of 1.30 to 1.44, with the highest wavelength or spectral sensitivity as 21,000 nm/RIU and the highest resolution as 9.09 x 10-6 RIU. The proposed biosensor has a straightforward geometric profile. The proposed biosensor is stable and suited for aqueous surroundings and wide-range detection applications.

引用

页数：7

共 51 条

[1]

Akgonullu S., 2022, Biosens. Bioelectron: X, V12

[2] Highly sensitive open-channels based plasmonic biosensor in visible to near-infrared wavelength [J].