Title :
An Isotropic 8.5 MHz magneti meta-lens
Author :
Jiang, Zhi Hao ; Scarborough, Clinton ; Werner, Douglas H. ; Werner, Pingjuan L. ; Rivero-Baleine, Clara ; Drake, Christina
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
In this paper, we propose an isotropic metamaterial lens (meta-lens) with an operational frequency of 8.5 MHz for imaging applications. The cubic unit cells, composed of inductor-and and capacitor-loaded split rings, are aligned in a periodic three-dimensional dimensional lattice. The meta-lens provides an effective isotropic permeability μeff = -1 at 8.5 MHz. The lens enhances the evanescent fields, producing strong magnetic fields and sharp subwavelength resolution at the image plane. Measurements of a fabricated meta-lens were found to match full-wave simulations.
Keywords :
image resolution; lens antennas; magnetic lenses; magnetic materials; metamaterials; optical fabrication; cubic unit cell; evanescent field; fabricated meta-lens measurement; frequency 8.5 MHz; full-wave simulation; image plane; imaging application; inductor-capacitor loaded split ring; isotropic magnetic metamaterial lens; isotropic permeability; magnetic field; periodic three dimensional lattice; sharp subwavelength resolution; Image resolution; Lenses; Magnetic fields; Magnetic materials; Metamaterials; Permeability; Slabs; effective medium; isotropic; metamaterial lens; permeability;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996487
