Buscar
Mostrando ítems 31-40 de 101
Oxide-cladding aluminum nitride photonic crystal slab: Design and investigation of material dispersion and fabrication induced disorder
(2016-01-14)
Photonic crystal slabs with a lower-index material surrounding the core layer are an attractive choice to circumvent the drawbacks in the fabrication of membranes suspended in air. In this work we propose a photonic crystal ...
Plasmon polaritons in photonic superlattices containing a left-handed material
(Epl Association, European Physical SocietyMulhouseFrança, 2009)
Nonlinear spectra of ZnO: reverse saturable, two- and three-photon absorption
(OPTICAL SOC AMER, 2010)
We present a broadband (460-980 nm) analysis of the nonlinear absorption processes in bulk ZnO, a large-bandgap material with potential blue-to-UV photonic device applications. Using an optical parametric amplifier we ...
Control mediante la presión y la temperatura de las propiedades ópticas en cristales fotónicos
(Universidad Nacional de ColombiaBogotá - Ciencias - Doctorado en Ciencias - FísicaFacultad de CienciasBogotáUniversidad Nacional de Colombia - Sede Bogotá, 2020-12)
Los cristales fotónicos son estructuras dieléctricas los cuales permiten el control de la propagación de la luz. En este trabajo presentamos los resultados teóricos referentes a las estructura de bandas fotónicas en cristales ...
Study of the zirconium and silicon homovalent dopants insertion on the structure and bandgap energy of titanium dioxide powders
(2018-01-01)
The reconstructive transformation occurring during the anatase-to-rutile phase transition can be observed through adequate techniques such as Thermal Analyses and Z-ray diffractometry followed by structural refinement. The ...
Exploring the properties of Ag5-TiO2 interfaces: Stable surface polaron formation, UV-Vis optical response, and CO2 photoactivation
(Royal Society of Chemistry, 2020-03-04)
Using a combination of first-principles modelling, X-ray absorption spectroscopy, and diffuse reflectance spectroscopy measurements, we explore the properties of Ag5-modified TiO2 surfaces. A general electron polarization ...