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Integration of gold nanoparticles in optical resonators

AuthorsJiménez-Solano, Alberto ; López-López, Carmen ; Sánchez-Sobrado, Olalla ; Luque, José Miguel; Calvo, Mauricio E. ; Fernández-López, Cristina; Sánchez-Iglesias, Ana; Liz-Marzán, Luis Manuel; Míguez, Hernán
Issue Date2012
PublisherAmerican Chemical Society
CitationLangmuir : the ACS journal of surfaces and colloids 28: 9161- 9167 (2012)
AbstractThe optical absorption of one-dimensional photonic crystal based resonators containing different types of gold nanoparticles is controllably modified by means of the interplay between planar optical cavity modes and localized surface plasmons. Spin-casting of metal oxide nanoparticle suspensions was used to build multilayered photonic structures that host (silica-coated) gold nanorods and spheres. Strong reinforcement and depletion of the absorptance was observed at designed wavelength ranges, thus proving that our method provides a reliable means to modify the optical absorption originated at plasmonic resonances of particles of arbitrary shape and within a wide range of sizes. These observations are discussed on the basis of calculations of the spatial and spectral dependence of the optical field intensity within the multilayers. © 2012 American Chemical Society.
Identifiersdoi: 10.1021/la300429k
issn: 0743-7463
Appears in Collections:(ICMS) Artículos
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