A chemical sensor based on surface plasmon resonance on surface modified optical fibers

dc.contributor.authorBender, William John Havercampen
dc.contributor.committeechairDessy, Raymond E.en
dc.contributor.committeememberLong, Gary L.en
dc.contributor.committeememberMerola, Joseph S.en
dc.contributor.committeememberMason, John G.en
dc.contributor.committeememberMurphy, Kent A.en
dc.contributor.departmentChemistryen
dc.date.accessioned2014-03-14T21:22:00Zen
dc.date.adate2005-10-24en
dc.date.available2014-03-14T21:22:00Zen
dc.date.issued1993-02-12en
dc.date.rdate2005-10-24en
dc.date.sdate2005-10-24en
dc.description.abstractA sensor is described which utilizes the phenomenon of surface plasmon resonance to detect changes in refractive index of chemical or biochemical samples applied to a surface modified optical fiber. The sensor is constructed by polishing a short section of the lateral surface of an optical fiber to its evanescent field surrounding the fiber core. One or more thin films are applied to the polished section of the fiber to produce the sensing element. One of the films is the metal silver, which acts as the support for the surface plasmon. Under the proper conditions, TM polarized energy propagating in the fiber can be coupled to a surface plasmon electromagnetic mode on the metal film. This coupling depends on the wavelength, the nature of the fiber, the refractive index and thickness of the thin films applied to the fiber, and the refractive index of a chemical sample in contact with the modified surface. The fiber to plasmon coupling is seen as a large attenuation of the light reaching the distal terminus of the fiber.en
dc.description.degreePh. D.en
dc.format.extentxi, 190 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-10242005-124049en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-10242005-124049/en
dc.identifier.urihttp://hdl.handle.net/10919/40097en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V856_1993.B463.pdfen
dc.relation.isformatofOCLC# 28013393en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1993.B463en
dc.subject.lcshChemical detectors -- Design and constructionen
dc.subject.lcshOptical fibersen
dc.subject.lcshPlasmons (Physics)en
dc.titleA chemical sensor based on surface plasmon resonance on surface modified optical fibersen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplineChemistryen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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