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Effect of Noble Metal Thin Film Thicknesses on Surface Plasmon Resonance (SPR) Signal Amplification

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dc.contributor.authorWan Maisarah Mukhtaren_US
dc.contributor.authorNursyamimi Raidah Ayoben_US
dc.contributor.authorRazman Mohd Halimen_US
dc.contributor.authorNurul Diyanah Samsurien_US
dc.contributor.authorNoor Faezah Muraten_US
dc.contributor.authorAffa Rozana Abdul Rashiden_US
dc.contributor.authorKarsono Ahmad Dasukien_US
dc.date.accessioned2024-05-28T05:54:12Z
dc.date.available2024-05-28T05:54:12Z
dc.date.issued2018
dc.descriptionVolume: 49 No: 1en_US
dc.description.abstractThis work is carried out to study the effect of noble metal thicknesses, namely gold and silver on the SPR characteristics for smart food packaging technology applications. A Kretschmann prism coupling was introduced to excite surface plasmon polaritons (SPP). The optical refractive indices values of gold and silver were set as Rgold=0.1759+3.4104i and Rsilver=0.0585+4.2665i respectively. The thicknesses of noble metal thin films were varied between t=25nm and 95nm with the increment of 10nm for each reading. SPR signal analyses were performed by studying the characteristics of SPR peaks such as Q-factor and FWHM. Both analyses demonstrated an outstanding optical properties of silver at t=55nm in comparison with gold due to its low FWHM and high Q-factor values which proves its ability to generate excellent amount of SPP. The employment of silver witnessed the enhancement of Q-factor value up to 7.09% and the decrement of FWHM about 76.58%, relatively with gold. The introduction of silver able to convert 87.20% SPP, whilst the usage of gold only capable to excite 81.4% SPP. In conclusion, application of silver noble metal at t=55nm able to generate maximum SPR. This excellent criterion placed silver as a spectacular candidate in the development of low cost and high sensitive SPR sensor for food quality assessment applications.en_US
dc.identifier.epage9
dc.identifier.issn2289-7992
dc.identifier.issue1
dc.identifier.spage1
dc.identifier.urihttps://akademiabaru.com/submit/index.php/arms/article/view/1668
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/6774
dc.identifier.volume49
dc.language.isoen_USen_US
dc.publisherPenerbit Akademia Baruen_US
dc.relation.ispartofJournal of Advanced Research in Materials Scienceen_US
dc.subjectSurface Plasmon Resonance (SPR), noble metals, FWHM, Q-factor, smart food packagingen_US
dc.titleEffect of Noble Metal Thin Film Thicknesses on Surface Plasmon Resonance (SPR) Signal Amplificationen_US
dc.typeArticleen_US
dspace.entity.typePublication

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