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Optimization of SPR signals: Monitoring the physical structures and refractive indices of prisms

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dc.Conferencecode132074
dc.Conferencedate9 August 2017 through 10 August 2017
dc.Conferencename2017 International Conference on Applied Photonics and Electronics, InCAPE 2017
dc.FundingDetailsUniversiti Sains Islam Malaysia: FRSG / / 014/S02/G U I03/M/ 1
dc.FundingDetailsThe authors would like to acknowledge the support of the Universiti Sains Islam Malaysia and Malaysian Ministry of Education for funding this work under grant FRSG / / 014/S02/G U I03/M/ 1. Knoll rG oup from Max Planck Institute for Polymer Research, German is als o acknowledged for the Winspall 3.02 simulation software.
dc.citedby4
dc.contributor.affiliationsFaculty of Science and Technology
dc.contributor.affiliationsUniversiti Sains Islam Malaysia (USIM)
dc.contributor.affiliationsNational Metrology Institute of Malaysia
dc.contributor.authorMukhtar W.M.en_US
dc.contributor.authorHalim R.M.en_US
dc.contributor.authorHassan H.en_US
dc.date.accessioned2024-05-28T08:31:14Z
dc.date.available2024-05-28T08:31:14Z
dc.date.issued2017
dc.description.abstractSurface plasmon resonance (SPR) can only be achieved if sufficient energy is provided at the boundary between metal and dielectric. An employment of prism as a light coupler by using Kretschmann configuration is one of the alternative for the production of adequate energy to be generated as surface plasmon polaritons (SPP). This work is carried out to investigate the effect of physical structure of the prism and its refractive index to the excitation of SPPs. A 50nm gold thin metal film with dielectric constant of ? =-12.45i+1.3 was deposited on the hypotenuse surface of the prisms. The physical structures of the prisms were varied such as triangular, conical, hemispherical and half cylindrical. These prisms were classified into two types of refractive indices (RI), namely n=1.51(type BK7) and n=1.77(type SF11). Based on SPR curve analyses, we discovered that strong SPR signals which consist of 82.98% photons were excited as SPPs can be obtained by using type-BK7 prism with physical structures of hemispherical or half cylindrical. From the view of selectivity ability as sensors, the usage of type-SF11 prisms (half cylindrical and hemispherical) able to enhance this impressive feature in which sharp SPR curves with small FWHM values were obtained. In conclusion, apart from properties of thin film materials, the physical structure of prisms and their RI values play crucial roles to obtain optimum SPR signal. High sensitivity SPR sensor can be established with the appointment of type-BK7 prisms (hemispherical or half cylindrical shape) as light couplers. � The Authors, published by EDP Sciences, 2017.
dc.description.natureFinalen_US
dc.editorWahid M.H.A.en_US
dc.identifier.ArtNo1001
dc.identifier.doi10.1051/epjconf/201716201001
dc.identifier.issn21016275
dc.identifier.scopus2-s2.0-85036638033
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85036638033&doi=10.1051%2fepjconf%2f201716201001&partnerID=40&md5=3d65c5d9d3092a82be3deb171d6709cb
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/8977
dc.identifier.volume162
dc.languageEnglish
dc.language.isoen_USen_US
dc.publisherEDP Sciencesen_US
dc.relation.ispartofEPJ Web of Conferences
dc.sourceScopus
dc.titleOptimization of SPR signals: Monitoring the physical structures and refractive indices of prismsen_US
dc.title.alternativeEPJ Web Conf.en_US
dc.typeConference Paperen_US
dspace.entity.typePublication

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