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dc.contributor.authorD'Britto, V.-
dc.contributor.authorSuchand Sandeep, C.S.-
dc.contributor.authorPhilip, Reji-
dc.contributor.authorPrasad, B.L.V.-
dc.identifier.citationColloids and Surfaces -A, 2009, Vol.352, p79en
dc.identifier.issn0927-7757 (Online)-
dc.descriptionRestricted Access.en
dc.description.abstractA simple method to incorporate spherical or aggregated nanostructures of gold into hydrophobic poly(etherimide) membranes is demonstrated and their comparative nonlinear optical properties are investigated. When excited at 532 nm using laser pulses of 7 ns duration, a reduced transmission behaviour in both the cases, viz., polymers embedded with isolated nanoparticles and their aggregates is observed. This fits to a three-photon type nonlinear absorption process and is attributed to excited state absorption occurring in the nanostructures. Interestingly, the nonlinearity is more prominent in the aggregated nanostructures compared to the spherical nanostructures. These materials are potential candidates for optical limiting applications.en
dc.publisherElsevier B.V.en
dc.rights2009 Elsevier B.V.en
dc.subjectOptical limitingen
dc.subjectNonlinear optical propertiesen
dc.subjectGold nanoparticlesen
dc.subjectPhase transferen
dc.subjectNanoparticle aggregationen
dc.subjectPolymer nanocompositesen
dc.titleOptical limiting properties of hydrophobic poly(etherimide) membranes embedded with isolated and aggregated gold nanostructuresen
Appears in Collections:Research Papers (LAMP)

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