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dc.creatorJakšić, Zoran
dc.creatorJakšić, Olga
dc.creatorMatovic, Jovan
dc.date.accessioned2019-01-30T17:19:56Z
dc.date.available2019-01-30T17:19:56Z
dc.date.issued2009
dc.identifier.issn1934-2608
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/519
dc.description.abstractWe considered figures of merit for chemical and biological sensors based on plasmonic structures and utilizing adsorption/desorption mechanism. The operation of these devices in general is limited by noise determining the minimum detectable refractive-index change. We dedicated our work to the intrinsic noise mechanisms connected with the plasmonic process itself. In contrast, most of the available literature is almost exclusively dedicated to the external noise sources (illumination source and photodetector). Reviewing the refractive-index fluctuations caused by thermal, adsorption-desorption and 1/f noise, we observed a striking analogy between the qualitative behavior of noise in (nano) plasmonic devices and that in semiconductor infrared detectors. The power spectral densities for noise in both of these have an almost identical shape; the adsorption-desorption noise corresponds to generation-recombination processes in detectors, while the other two mechanisms exist in the both types of the devices. Thus the large and mature existing apparatus for infrared detector noise analysis may be applied to the plasmonic sensors. Based on the observed analogy, we formulated the noise-equivalent refractive-index and the specific detectivity as the figures of merit to analyze the ultimate performance of plasmon sensors. The approach is valid for conventional surface plasmon resonance sensors, but also for nanoplasmonic and metamaterial-based devices.en
dc.publisherSpie-Soc Photo-Optical Instrumentation Engineers, Bellingham
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/11027/RS//
dc.rightsrestrictedAccess
dc.sourceJournal of Nanophotonics
dc.subjectphotonicsen
dc.subjectplasmonicsen
dc.subjectsurface-plasmon polaritonsen
dc.subjectsensorsen
dc.subjectnoiseen
dc.subjectdetectivityen
dc.titlePerformance limits to the operation of nanoplasmonic chemical sensors: noise-equivalent refractive index and detectivityen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractЈакшић, Зоран; Матовиц, Јован; Јакшић, Олга;
dc.citation.volume3
dc.citation.other3:
dc.citation.rankM22
dc.identifier.doi10.1117/1.3124792
dc.identifier.rcubConv_2475
dc.identifier.scopus2-s2.0-69949128790
dc.identifier.wos000272327900004
dc.type.versionpublishedVersion


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