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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2017-07-27
Sub-Diffraction Holographic Imaging with Resonant Scatterers
By
Abhishek Patel,

    Dr. Abhishek Patel

    Department of Electrical and Computer Engineering

    New York Institute of Technology

    USA

    Homepage

Reza K. Amineh

    Prof. Reza K. Amineh

    ECE

    New York Institute of Technology

    US

    Homepage

Progress In Electromagnetics Research M, Vol. 59, 1-7, 2017
doi:10.2528/PIERM17062305 | Google Scholar

Abstract
Imaging with electromagnetic waves has a wide range of applications from remote sensing of earth to concealed weapon detection, among the others. When data are collected in the far-field (imaging distance in the order of one wavelength or larger), linear electromagnetic imaging techniques mainly suffer a fundamental limit in the resolution called "diffraction limit". To overcome this limit, we propose the use of resonant near-field scatterers incorporated in the holographic imaging techniques. These scatterers convert part of the evanescent spectrum in the vicinity of the object to propagating spectrum that is measured by the antenna in the far-field. Here, we study the improvement in the resolution with decreasing the object-scatterer distance. We also investigate the effect of using multiple scatterers along the range and cross-range directions.
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Citation
Abhishek Patel, and Reza K. Amineh, "Sub-Diffraction Holographic Imaging with Resonant Scatterers," Progress In Electromagnetics Research M, Vol. 59, 1-7, 2017.
doi:10.2528/PIERM17062305
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