Silicon Direct Opals

Ibisate, Marta; Golmayo, D.; López, Cefe

doi:10.1002/adma.200900188

Cited by 49 publications

(39 citation statements)

References 21 publications

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“…Photonic glasses are expected to be important for the field of Anderson localization of light, which could be achieved for some resonant wavelength ranges if the refractive index of the material were increased as, for example, in silicon photonic glasses. [51] Photonic glasses by themselves or integrated with photonic crystals may give rise to new applications in future photonic devices. …”

Section: Discussionmentioning

confidence: 99%

Photonic Glasses: A Step Beyond White Paint

2009

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Self-assembly techniques are widely used to grow ordered structures such as, for example, opal-based photonic crystals. Here, we report on photonic glasses, new disordered materials obtained via a modified self-assembling technique. These random materials are solid thin films which exhibit rich novel light diffusion properties originating from the optical properties of their building blocks. This novel material inaugurated a wide range of nanophotonic materials with fascinating applications, such as resonant random lasers or Anderson localization.

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Section: Discussionmentioning

confidence: 99%

Photonic Glasses: A Step Beyond White Paint

2009

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“…studied in order to be able to produce photonic barcodes on demand. Diameter control of particles may be addressed by using alternative methods as the synthesis of monodisperse silicon particles recently described by Ibisate et al, [ 20 ] This method may provide different routes to control both monodispersity, being this a subject of further research.…”

Section: Supporting Informationmentioning

confidence: 99%

Porous Silicon Microcavities Based Photonic Barcodes

et al. 2011

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“…Equations (5) and (6) predict that coherent effects can occur between different dipolar and quadrupolar terms in the forward and backward directions. In particular, the electric and the magnetic dipoles can interfere constructively or destructively producing minima in either the backward or the forward scattered intensity at certain light frequencies [13][14][15].…”

Section: Methodsmentioning

confidence: 99%

Sensing with magnetic dipolar resonances in semiconductor nanospheres

et al. 2013

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Abstract:In this work we propose two novel sensing principles of detection that exploit the magnetic dipolar Mie resonance in high-refractiveindex dielectric nanospheres. In particular, we theoretically investigate the spectral evolution of the extinction and scattering cross sections of these nanospheres as a function of the refractive index of the external medium (n ext ). Unlike resonances in plasmonic nanospheres, the spectral position of magnetic resonances in high-refractive-index nanospheres barely shifts as n ext changes. Nevertheless, there is a drastic reduction in the extinction cross section of the nanospheres when n ext increases, especially in the magnetic dipolar spectral region, which is accompanied with remarkable variations in the radiation patterns. Thanks to these changes, we propose two new sensing parameters, which are based on the detection of: i) the intensity variations in the transmitted or backscattered radiation by the dielectric nanospheres at the magnetic dipole resonant frequency, and ii) the changes in the radiation pattern at the frequency that satisfies Kerker's condition of near-zero forward radiation. To optimize the sensitivity, we consider several semiconductor materials and particles sizes. "Improved performance of aminopropylsilatrane over aminopropyltriehoxysilane as a linker for nanoparticlebased plasmon resonance sensors," Sens.

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Silicon Direct Opals

Cited by 49 publications

References 21 publications

Photonic Glasses: A Step Beyond White Paint

Photonic Glasses: A Step Beyond White Paint

Porous Silicon Microcavities Based Photonic Barcodes

Sensing with magnetic dipolar resonances in semiconductor nanospheres

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