Transmission spectra changes produced by decreasing compactness of opal-like structures
Fecha
2009Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
10.1063/1.3068475
Resumen
Artificial opal-like structures based on spheres and colloidal particles have been fabricated in a
controlled way, presenting optical band-gap properties in the optical frequency range. Nonclose
packed artificial opals have also been fabricated and studied recently. In order to gain a better
understanding of these phenomena, we have studied macroscopic models of nonclose packed fcc
lattices using ...
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Artificial opal-like structures based on spheres and colloidal particles have been fabricated in a
controlled way, presenting optical band-gap properties in the optical frequency range. Nonclose
packed artificial opals have also been fabricated and studied recently. In order to gain a better
understanding of these phenomena, we have studied macroscopic models of nonclose packed fcc
lattices using glass spheres (ε = 7) of 8 mm diameter, and measuring in the microwave region from
10 to 30 GHz. The results have shown a Bragg resonance tunable with filling factor of the opal, and
a strong rejected band similar, also present in close packed samples, much less affected by
compactness. The relation of this high order band with spheres single layer behavior is also
discussed [--]
Materias
Opal-like structures,
Compactness,
Transmission spectra changes
Editor
AIP Publishing
Publicado en
Journal of Applied Physics, 105, 024910 (2009)
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa eta Elektronikoa Saila