{"title":"基于折射率传感的表面等离子体共振传感器的灵敏度增强：理论分析","authors":"Gufranullah Ansari, Prakash Kanjariya, M. Sudhakara Reddy, Satish Choudhury, Helen Merina Albert, Irwanjot Kaur, Vikas Rathi, Fadhil Faez Sead, Yash Sharma, Aashna Sinha, Arun Uniyal","doi":"10.1007/s11468-025-03082-5","DOIUrl":null,"url":null,"abstract":"<div><p>Surface plasmon resonance (SPR) sensors are essential for detecting several applications because of their high sensitivity and real-time analysis capabilities. This paper’s proposed sensor incorporates the CsF prism, gold (Au), silicon nitride (Si<sub>3</sub>N<sub>4</sub>), and zirconium nitride layers to detect the various applications. Au, which has excellent plasmonic qualities, greatly increases sensitivity. Additionally, incorporating Si<sub>3</sub>N and ZrN, which have remarkable optical and electronic properties, improves signal enhancement by increasing light-matter interaction. The proposed sensor analyzes performance using the transfer matrix method (TMM) and Kretschmann configuration, which is based on Fresnel’s equation. At RI of 1.33–1.35 sensing analyte has the following maximum sensitivities (S) and figure of merits (FoM): 281.58, 294.44°/RIU and 38.85/RIU, 45.93/RIU with/without ZrN layer at remarkable minimum reflectance, respectively. According to the study, combining Si<sub>3</sub>N<sub>4</sub> and ZrN materials with conventional plasmonic metals can improve sensitivity while serving as a platform for additional medical diagnostics and environmental monitoring.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 8","pages":"6083 - 6094"},"PeriodicalIF":4.3000,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Refractive Index Sensing-Based Surface Plasmon Resonance Sensor for Sensitivity Enhancement: Theoretical Analysis\",\"authors\":\"Gufranullah Ansari, Prakash Kanjariya, M. Sudhakara Reddy, Satish Choudhury, Helen Merina Albert, Irwanjot Kaur, Vikas Rathi, Fadhil Faez Sead, Yash Sharma, Aashna Sinha, Arun Uniyal\",\"doi\":\"10.1007/s11468-025-03082-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Surface plasmon resonance (SPR) sensors are essential for detecting several applications because of their high sensitivity and real-time analysis capabilities. This paper’s proposed sensor incorporates the CsF prism, gold (Au), silicon nitride (Si<sub>3</sub>N<sub>4</sub>), and zirconium nitride layers to detect the various applications. Au, which has excellent plasmonic qualities, greatly increases sensitivity. Additionally, incorporating Si<sub>3</sub>N and ZrN, which have remarkable optical and electronic properties, improves signal enhancement by increasing light-matter interaction. The proposed sensor analyzes performance using the transfer matrix method (TMM) and Kretschmann configuration, which is based on Fresnel’s equation. At RI of 1.33–1.35 sensing analyte has the following maximum sensitivities (S) and figure of merits (FoM): 281.58, 294.44°/RIU and 38.85/RIU, 45.93/RIU with/without ZrN layer at remarkable minimum reflectance, respectively. According to the study, combining Si<sub>3</sub>N<sub>4</sub> and ZrN materials with conventional plasmonic metals can improve sensitivity while serving as a platform for additional medical diagnostics and environmental monitoring.</p></div>\",\"PeriodicalId\":736,\"journal\":{\"name\":\"Plasmonics\",\"volume\":\"20 8\",\"pages\":\"6083 - 6094\"},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2025-06-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Plasmonics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11468-025-03082-5\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasmonics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s11468-025-03082-5","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Refractive Index Sensing-Based Surface Plasmon Resonance Sensor for Sensitivity Enhancement: Theoretical Analysis
Surface plasmon resonance (SPR) sensors are essential for detecting several applications because of their high sensitivity and real-time analysis capabilities. This paper’s proposed sensor incorporates the CsF prism, gold (Au), silicon nitride (Si3N4), and zirconium nitride layers to detect the various applications. Au, which has excellent plasmonic qualities, greatly increases sensitivity. Additionally, incorporating Si3N and ZrN, which have remarkable optical and electronic properties, improves signal enhancement by increasing light-matter interaction. The proposed sensor analyzes performance using the transfer matrix method (TMM) and Kretschmann configuration, which is based on Fresnel’s equation. At RI of 1.33–1.35 sensing analyte has the following maximum sensitivities (S) and figure of merits (FoM): 281.58, 294.44°/RIU and 38.85/RIU, 45.93/RIU with/without ZrN layer at remarkable minimum reflectance, respectively. According to the study, combining Si3N4 and ZrN materials with conventional plasmonic metals can improve sensitivity while serving as a platform for additional medical diagnostics and environmental monitoring.
期刊介绍：
Plasmonics is an international forum for the publication of peer-reviewed leading-edge original articles that both advance and report our knowledge base and practice of the interactions of free-metal electrons, Plasmons.
Topics covered include notable advances in the theory, Physics, and applications of surface plasmons in metals, to the rapidly emerging areas of nanotechnology, biophotonics, sensing, biochemistry and medicine. Topics, including the theory, synthesis and optical properties of noble metal nanostructures, patterned surfaces or materials, continuous or grated surfaces, devices, or wires for their multifarious applications are particularly welcome. Typical applications might include but are not limited to, surface enhanced spectroscopic properties, such as Raman scattering or fluorescence, as well developments in techniques such as surface plasmon resonance and near-field scanning optical microscopy.
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