Search Results - "Halas, N. J."

A Hybridization Model for the Plasmon Response of Complex Nanostructures by Prodan, E., Radloff, C., Halas, N. J., Nordlander, P.

“…We present a simple and intuitive picture, an electromagnetic analog of molecular orbital theory, that describes the plasmon response of complex nanostructures…”
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Optical Spectroscopy of Conductive Junctions in Plasmonic Cavities by Pérez-González, O, Zabala, N, Borisov, A. G, Halas, N. J, Nordlander, P, Aizpurua, J

“…The optical properties of a nanoparticle dimer bridged by a conductive junction depend strongly on the junction conductivity. As the conductivity increases,…”
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Surface-Enhanced Raman Scattering on Tunable Plasmonic Nanoparticle Substrates by Jackson, J B, Halas, N J

“…Au and Ag nanoshells are investigated as substrates for surface-enhanced Raman scattering (SERS). We find that SERS enhancements on nanoshell films are…”
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Nanoshell-Mediated Near-Infrared Thermal Therapy of Tumors under Magnetic Resonance Guidance by Hirsch, L. R., Stafford, R. J., Bankson, J. A., Sershen, S. R., Rivera, B., Price, R. E., Hazle, J. D., Halas, N. J., West, J. L.

“…Metal nanoshells are a class of nanoparticles with tunable optical resonances. In this article, an application of this technology to thermal ablative therapy…”
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A Whole Blood Immunoassay Using Gold Nanoshells by Hirsch, L. R, Jackson, J. B, Lee, A, Halas, N. J, West, J. L

“…A rapid immunoassay capable of detecting analyte within complex biological media without any sample preparation is described. This was accomplished using gold…”
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Electronic Structure and Optical Properties of Gold Nanoshells by Prodan, E, Nordlander, P, Halas, N. J

“…Using the TDLDA method, we investigate how the polarizability of the d electrons of the gold atoms influences the electronic and optical properties of metallic…”
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Plasmons in the Metallic Nanoparticle−Film System as a Tunable Impurity Problem by Le, F, Lwin, N. Z, Steele, J. M, Käll, M, Halas, N. J, Nordlander, P

“…We show that the plasmon resonances of a metallic nanoparticle interacting with the surface plasmons of a metallic film is an electromagnetic analogue of the…”
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Independent Optical Control of Microfluidic Valves Formed from Optomechanically Responsive Nanocomposite Hydrogels by Sershen, S. R., Mensing, G. A., Ng, M., Halas, N. J., Beebe, D. J., West, J. L.

“…Independent optical control of microfluidic valves (see Figure) formed from optomechanically responsive nanocomposite hydrogels is achieved using strongly…”
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Controlling the surface enhanced Raman effect via the nanoshell geometry by Jackson, J. B., Westcott, S. L., Hirsch, L. R., West, J. L., Halas, N. J.

“…Systematic variation of the internal geometry of a dielectric core-metal shell nanoparticle allows the local electromagnetic field at the nanoparticle surface…”
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Infrared extinction properties of gold nanoshells by Oldenburg, S. J., Jackson, J. B., Westcott, S. L., Halas, N. J.

“…Gold nanoshells, nanoparticles consisting of a silica core coated with a thin gold shell, exhibit a strong optical resonance that depends sensitively on their…”
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Independent Optical Control of Microfluidic Valves Formed from Optomechanically Responsive Nanocomposite Hydrogels by Sershen, S. R., Mensing, G. A., Ng, M., Halas, N. J., Beebe, D. J., West, J. L.

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Mesoscopic Au "Meatball" Particles by Wang, H., Halas, N. J.

“…Sub‐micrometer meatball‐like Au particles provide a very interesting mesoscopic regime in which their optical responses are determined by both the mesoscopic…”
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Silver Nanoshells:  Variations in Morphologies and Optical Properties by Jackson, J. B, Halas, N. J

“…The production of silica core-silver shell nanoparticles (silver nanoshells) by three different chemical methods is described. Each method produces a silver…”
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Light scattering from dipole and quadrupole nanoshell antennas by Oldenburg, S. J., Hale, G. D., Jackson, J. B., Halas, N. J.

“…Metal nanoshells are nanoscale optical components that allow for the controllable redirection of electromagnetic radiation via careful engineering of their…”
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Optimized plasmonic nanoparticle distributions for solar spectrum harvesting by Cole, Joseph R., Halas, N. J.

“…The large optical cross sections of metallic nanoparticles at wavelengths corresponding to their plasmon resonance make them highly attractive for harvesting…”
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Enhanced thermal stability of silica-encapsulated metal nanoshells by Radloff, C., Halas, N. J.

“…A silica-encapsulating layer of a 60–70 nm thickness is fabricated around composite nanoparticles consisting of a silica core and a gold shell (metal…”
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Independent optically addressable nanoparticle-polymer optomechanical composites by Sershen, S. R., Westcott, S. L., Halas, N. J., West, J. L.

“…We report the fabrication and characterization of optomechanically active composite materials consisting of a thermally responsive poly(NIPAAm-co-AAm) hydrogel…”
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Adenine− and Adenosine Monophosphate (AMP)−Gold Binding Interactions Studied by Surface-Enhanced Raman and Infrared Spectroscopies by Kundu, J, Neumann, O, Janesko, B. G, Zhang, D, Lal, S, Barhoumi, A, Scuseria, G. E, Halas, N. J

“…Understanding the interactions of biomolecules with noble metal surfaces is critical to our development of functional biomedical nanodevices and accurate…”
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Adsorbate-Induced Quenching of Hot Electrons in Gold Core−Shell Nanoparticles by Westcott, S. L, Averitt, R. D, Wolfgang, J. A, Nordlander, P, Halas, N. J

“…We have investigated the effect of molecular adsorbates on the ultrafast electron dynamics in nanoshell particles. These nanoparticles consist of a thin gold…”
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An opto-mechanical nanoshell-polymer composite by Sershen, S.R., Westcott, S.L., West, J.L., Halas, N.J.

“…Metal nanoshells, which are nanoparticles consisting of a dielectric core surrounded by a metal shell, have an optical response dictated by the plasmon…”
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