基于双步双峰位移灵敏度的高灵敏度表面等离子体共振光子晶体光纤生物传感器的设计与分析

Design and analysis of a highly sensitive SPR based PCF biosensor with double step dual peak shift sensitivity.

作者信息

Islam Mohammad Rakibul, Khan Md Moinul Islam, Yeasir Ahmad Jarif, Mehjabin Fariha, Mim Jannat Ara, Chowdhury Jubair Alam, Nahid Tajuddin Ahmed, Islam Mohibul

机构信息

Electrical and Electronic Engineering Department, Islamic University of Technology, Board Bazar, Gazipur-1704, Bangladesh.

出版信息

Heliyon. 2023 Jul 28;9(8):e18782. doi: 10.1016/j.heliyon.2023.e18782. eCollection 2023 Aug.

DOI:10.1016/j.heliyon.2023.e18782

PMID:37560693

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10407746/

Abstract

This paper introduces a comprehensive study of a quad-cluster multi-functional Photonic Crystal Fiber (PCF) sensor where gold and Aluminum doped with zinc oxide (AZO) were used as plasmonic materials. A maximum Amplitude Sensitivity (AS) of 5336 RIU and Wavelength Sensitivity (WS) of 40,500 nm/RIU in y pol was obtained incorporating Gold as plasmonic material. When AZO was included as the plasmonic material, AS of 3763 RIU & WS of 9100 nm/RIU for y polarization were determined. The RI detecting range was increased from 1.32 to 1.43 to 1.19-1.42 after using AZO instead of Au that opens up a new horizon for detection. A novel detection technique, 'Double Step Dual Peak Shift Sensitivity (DS-DPSS)' was proposed in sensing temperature where highest sensitivity of 1.05 nm/C having resolution of 0.095 °C for x pol. was achieved. Due to its diverse functionality, the suggested sensor represents a significant advancement in the detection of numerous analytes in biochemical applications.

摘要

本文介绍了一种对四簇多功能光子晶体光纤（PCF）传感器的综合研究，其中金和掺杂氧化锌的铝（AZO）被用作等离子体材料。以金作为等离子体材料时，在y偏振方向上获得了最大幅度灵敏度（AS）为5336 RIU和波长灵敏度（WS）为40500 nm/RIU。当将AZO作为等离子体材料时，确定y偏振的AS为3763 RIU，WS为9100 nm/RIU。使用AZO代替Au后，RI检测范围从1.32至1.43增加到1.19 - 1.42，这为检测开辟了新视野。在感测温度时提出了一种新颖的检测技术，即“双步双峰位移灵敏度（DS - DPSS）”，在x偏振方向上实现了最高灵敏度为1.05 nm/°C，分辨率为0.095°C。由于其多样的功能，所建议的传感器在生化应用中对多种分析物的检测方面代表了重大进展。