Buscar
Mostrando ítems 1-10 de 34
Harmonic demodulation and minimum enhancement factors in field-enhanced near-field optical microscopy
(2015-01)
Field enhanced scanning optical microscopy (FESOM) relies on the design and fabrication of plasmonic probes which had to provide optical and chemical contrast at the nanoscale. In order to do so, the scattering containing ...
Fabricación y Caracterización de Sustratos Plasmónicos Basados en Nanobastones de Oro
(2015)
Se fabricaron sustratos plasmónicos mediante el recubrimiento controlado de superficies de vidrio y películas
delgadas de oro con nanobastones de oro. Estos sustratos nanoestructurados poseen resonancias ópticas en el ...
Nanoestructuras esféricas núcleo-cáscara con resonancias plasmónicas sintonizables
(Asociación Argentina de Investigación en Fisicoquímica, 2019-04)
Las nanopartículas constituidas por un núcleo dieléctrico rodeado por una capa metálica forman una clase de nanoestructuras con notables propiedades ópticas. Sus resonancias de plasmones superficiales derivan del acoplamiento ...
Plasmon-induced photochemical synthesis of silver triangular prisms and pentagonal bipyramids by illumination with light emitting diodes
(2013)
We have grown silver prisms and pentagonal bipyramids, induced by plasmon excitation on a colloidal
solution under the irradiation of light emitting diodes of different colors. Two methods of synthesis of
the seeds were ...
Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillations
(2018-12-03)
Light absorption in gold nanoparticles leads to metal heating that induces photothermal reshaping because of atomic surface diffusion at temperatures well below the gold melting point. In this work, we perform time-resolved ...
Nanorod-based plasmonic substrates with predefined optical resonances
(2018)
To design and fabricate plasmonic substrates to be used in ultrasensitive chemical sensing or surfaceenhanced
spectroscopies, it is important to achieve control on the morphology, dimensions and
surface density of metallic ...
High resolution imaging using nanoparticle based probes
(2018)
New plasmonic probes, based on silica microspheres decorated with metal
nanoparticles (Figure 1), are built and used to confine and enhance the electric field
in their interaction with the sample, giving ultra-high optical ...
Kinetic and plasmonic properties of gold nanorods adsorbed on glass substrates
(2019-09-19)
Monodisperse gold nanorods with different sizes were synthesized and adsorbed on chemically modified glass substrates. Influence of surfactant molar concentration on nanorod adsorption was studied and the optimum range was ...
Síntesis de nanopartículas híbridas dieléctrico-metal y estudio de sus propiedades ópticas
(2018)
Se sintetizaron y estudiaron nanopartículas esféricas del tipo núcleo-cáscara de sílice y oro, con control de sus dimensiones. En una primera etapa se realizó la síntesis de esferas de SiO2 monodispersas de varios tamaños, ...
Kinetic and plasmonic properties of gold nanorods adsorbed on glass substrates
(2019-10-24)
Monodisperse gold nanorods with different sizes were synthesized and adsorbed on chemically modified glass substrates. Influence of surfactant molar concentration on nanorod adsorption was studied and the optimum range ...