ALGARÍN GUISADO , José Miguel

La presente memoria recoge los resultados de una investigación multidisciplinar que combina la reciente disciplina de los metamateriales electromagnéticos con la técnica de obtención de imágenes médicas mediante resonancia magnética. La resonancia magnética (RM) [1] es una de las principales técnicas de obtención de imágenes médicas junto con...

In this paper, we present a method for the evaluation of the signalto- noise ratio in magnetic resonance imaging (MRI) coils loaded with resonant ring metamaterial lenses, in the presence of a conducting phantom resembling human tissue. The method accounts for the effects of the discrete and finite structure of the metamaterial. Numerical...

An experimental setup to demonstrate negative refraction is described. A simple method for designing and fabricating a metamaterial with negative refractive index at microwave frequencies is discussed. The metamaterial is made of a multilayer planar arrangement of flat unit cells. A prism was fabricated and used to demonstrate negative...

Parallel Magnetic Resonance imaging (pMRI) is an image acceleration technique which takes advantage of localized sensitivities of multiple receivers. In this letter, we show that metamaterial lenses based on capacitively-loaded rings can provide higher localization of coil sensitivities compared to conventional loop designs. Several lens...