Title :
Simulations of 2D metamaterial apertures for coherent computational imaging
Author :
Lipworth, Guy ; Hunt, John ; Mrozack, Alex ; Brady, David ; Smith, David R.
Author_Institution :
Center for Metamaterials & Integrated Plasmonics, Duke Univ. Durham, Durham, NC, USA
Abstract :
A metamaterial aperture operating as a leaky waveguide with resonating metamaterial irises can sweep its operation frequency to modify its complex field pattern with no moving parts. By randomly distributing the metamaterials´ resonance frequencies, we show the aperture can generate random illumination patterns well suited for compressive sensing. In this way the aperture utilizes the physical layer to avoid redundant measurements in the image reconstruction process.
Keywords :
compressed sensing; image reconstruction; lighting; metamaterials; 2d metamaterial apertures simulations; coherent computational imaging; complex field pattern; compressive sensing; image reconstruction process; metamaterial resonance frequencies; physical layer; random illumination patterns; resonating metamaterial; Apertures; Frequency measurement; Image reconstruction; Imaging; Metamaterials; Noise measurement; Resonant frequency; compressive sensing; computational imaging; metamaterials;
Conference_Titel :
Microwaves, Communications, Antennas and Electronics Systems (COMCAS), 2013 IEEE International Conference on
Conference_Location :
Tel Aviv
DOI :
10.1109/COMCAS.2013.6685286
