DocumentCode
453504
Title
3D sub-diffraction imaging by a planar metamaterial lens
Author
Freire, M.J. ; Marqués, R. ; Baena, J.D.
Author_Institution
Dept. of Electron. & Electromagnetism, Seville Univ., Spain
Volume
2
fYear
2005
fDate
4-6 Oct. 2005
Abstract
A planar microwave lens for sub-diffraction imaging is presented. The physical mechanism underlying the reported results is the amplification of the source evanescent Fourier harmonics, via the excitation of magnetoinductive surface waves in the lens. By using this device, a 3D image of an input antenna has been measured at the shadowed face of the lens, with a resolution well below the free space wavelength. We interpret these results as a consequence of near-field imaging and tunneling effects.
Keywords
Fourier transform optics; diffraction; lenses; metamaterials; microwave imaging; tunnelling; 3D sub-diffraction imaging; Fourier harmonics; magnetoinductive surface waves; near-field imaging; planar metamaterial lens; planar microwave lens; tunneling effects; Antenna measurements; Dielectric substrates; Lenses; Metamaterials; Microwave devices; Microwave imaging; Optical imaging; Optical ring resonators; Receiving antennas; Slabs;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 2005 European
Print_ISBN
2-9600551-2-8
Type
conf
DOI
10.1109/EUMC.2005.1610024
Filename
1610024
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