Publication:
SPR sensor for detection of heavy metal ions: Manipulating the EM waves polarization modes

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dc.contributor.authorMukhtar, WMen_US
dc.contributor.authorHalim, RMen_US
dc.contributor.authorDasuki, KAen_US
dc.contributor.authorRashid, ARAen_US
dc.contributor.authorTaib, NAMen_US
dc.date.accessioned2024-05-29T02:52:09Z
dc.date.available2024-05-29T02:52:09Z
dc.date.issued2017
dc.description.abstractThe development of high sensitivity surface plasmon resonance (SPR) sensor depends on few crucial factors such as types and thicknesses of metal thin films, light coupling techniques and suitable polarization modes of EM waves. This work was carried out to investigate the effect of EM wave polarization modes on the sensing properties of SPR sensor in detecting heavy metal ions namely mercury (Hg) and plumbum (Pb). Three types of light polarization modes such as p-polarized, s-polarized and circular-polarized light were introduced. Gold and silver thin films with thicknesses of 50nm were deposited on top of SPR layer system to excite surface plasmon polaritons (SPPs). The SPR curves were analyzed by studying the FWHM, Q-factor and angle shifting characteristics. We managed to prove theoretically that the SPR phenomena able to be created by using not only the p-polarized light, yet by employing a circular-polarized light. The sensor showed positive respond for both polarization modes, where the troughs were red-shifted about 23.78% as Pb was introduced on the top of the gold-coated SPR sensor. The SPR angles were shifted about 24.45% as the sensor was exposed with Hg metal ions. Different response due to the presence of different analytes exhibited excellent criteria of high selectivity sensor. In conclusion, the combination of p-polarized light or circular-polarized light and gold thin film able to accentuate the significant role of SPR sensor in detecting heavy metal ions.en_US
dc.identifier.doi10.11113/mjfas.v13n4.748
dc.identifier.epage622
dc.identifier.isbn2289-599X
dc.identifier.issn2289-5981
dc.identifier.issue4
dc.identifier.scopusWOS:000424049900014
dc.identifier.spage619
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/11280
dc.identifier.volume13
dc.languageEnglish
dc.language.isoen_USen_US
dc.publisherPenerbit Utm Pressen_US
dc.relation.ispartofMalaysian Journal Of Fundamental And Applied Sciencesen_US
dc.sourceWeb Of Science (ISI)
dc.subjectSPR sensoren_US
dc.subjectEM waves polarization modesen_US
dc.subjectheavy metal ionsen_US
dc.subjectoptical sensoren_US
dc.titleSPR sensor for detection of heavy metal ions: Manipulating the EM waves polarization modesen_US
dc.typeArticleen_US
dspace.entity.typePublication

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