655 citations · 1.4k across the 11 of their papers we have counts for
11 papers
Active split-ring metamaterial slabs for magnetic resonance imaging
Marcos A. Lopez, Jose M. Algarin, Manuel J. Freire +3
In this work, it is analyzed the ability of split-ring metamaterial slabs with zero/high permeability to reject/confine the radiofrequency magnetic field in magnetic resonance imag…
On the applications of mu=-1 metamaterial lenses for magnetic resonance imaging
Manuel J. Freire, Lukas Jelinek, Ricardo Marques
In this work some possible applications of negative permeability magnetic metamaterial lenses for magnetic resonance imaging (MRI) are analyzed. Metamaterials are artificial compos…
Metamaterial radiofrequency lens for magnetic resonance imaging
Manuel J. Freire, Ricardo Marques, Lukas Jelinek +2
The purpose of this work is to test the ability of a new class of passive electromagnetic device to increase the penetration depth of phased arrays of surface coils for magnetic re…
Artificial magnetism and left handed media from dielectric rings and rods
L. Jelinek, R. Marques
It is shown that artificial magnetism with relatively large frequency bandwidth can be obtained from periodic arrangements of dielectric rings. Combined with dielectric rods, diele…
Experimental demonstration of a mu=-1 metamaterial lens for magnetic resonance imaging
Manuel J. Freire, Ricardo Marques, Lukas Jelinek
In this work a mu=-1 metamaterial (MM) lens for magnetic resonance imaging (MRI) is demonstrated. MRI uses surface coils to detect the radiofrequency(RF) energy absorbed and emitte…
Balanced right/left-handed mixtures of quasi-planar chiral inclusions
R. Marques, F. Mesa, L. Jelinek +1
Some novel quasi-planar chiral inclusions, feasible from standard photo-etching techniques, are proposed. It is shown that such inclusions can be designed in order to present balan…