{"title":"Photonic crystal fiber-based plasmonic sensor with ITO for medical applications","authors":"Pibin Bing, Jiangfei Zhao, Qing Liu, Xiaohu Yi, Zhongyang Li, Hongtao Zhang, Zhiliang Chen, Juan Xu","doi":"10.1140/epjd/s10053-023-00655-z","DOIUrl":null,"url":null,"abstract":"<div><p>In this paper, a photonic crystal fiber sensor is proposed for urine analysis of diabetic patients. Indium tin oxide (ITO) is adopted as plasmonic material to be coated on the polished plane to ensure a high flatness of the coating. The sensor is immersed in the liquid analyte for detection. Since the refractive index of the abnormal analyte is different from that of the normal level analyte, the change of its refractive index can be determined by comparing and analyzing the shifts of confinement loss peak shift. Simulation results show that the maximum wavelength sensitivity and resolution are 25,000 nm/RIU and 4 × 10<sup>−6</sup> RIU in the refractive index detection range of 1.320–1.355. In addition, the sensor proposed in this paper can change the detection range and sensitivity by changing the thickness of ITO film, which means the thickness of ITO film can be optimized according to the application requirements to achieve customized PCF sensor. To sum up, the sensor proposed in this paper has potential applications in medical and chemical fields.\n</p><h3>Graphical abstract</h3>\n <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\n </div>","PeriodicalId":789,"journal":{"name":"The European Physical Journal D","volume":"77 4","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The European Physical Journal D","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1140/epjd/s10053-023-00655-z","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"OPTICS","Score":null,"Total":0}
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Abstract
In this paper, a photonic crystal fiber sensor is proposed for urine analysis of diabetic patients. Indium tin oxide (ITO) is adopted as plasmonic material to be coated on the polished plane to ensure a high flatness of the coating. The sensor is immersed in the liquid analyte for detection. Since the refractive index of the abnormal analyte is different from that of the normal level analyte, the change of its refractive index can be determined by comparing and analyzing the shifts of confinement loss peak shift. Simulation results show that the maximum wavelength sensitivity and resolution are 25,000 nm/RIU and 4 × 10−6 RIU in the refractive index detection range of 1.320–1.355. In addition, the sensor proposed in this paper can change the detection range and sensitivity by changing the thickness of ITO film, which means the thickness of ITO film can be optimized according to the application requirements to achieve customized PCF sensor. To sum up, the sensor proposed in this paper has potential applications in medical and chemical fields.
期刊介绍：
The European Physical Journal D (EPJ D) presents new and original research results in:
Atomic Physics;
Molecular Physics and Chemical Physics;
Atomic and Molecular Collisions;
Clusters and Nanostructures;
Plasma Physics;
Laser Cooling and Quantum Gas;
Nonlinear Dynamics;
Optical Physics;
Quantum Optics and Quantum Information;
Ultraintense and Ultrashort Laser Fields.
The range of topics covered in these areas is extensive, from Molecular Interaction and Reactivity to Spectroscopy and Thermodynamics of Clusters, from Atomic Optics to Bose-Einstein Condensation to Femtochemistry.
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