Near-field Imaging by Negative Permittivity Media
نویسنده
چکیده
The imaging of the near field by a slab of negative permittivity medium is discussed. The performance of this flat lens is limited by the working wavenumber k0 and the slab thickness d. For k0d 0.937, the resolution of the flat lens can be smaller than the wavelength and depends logarithmically on 1/k0d. The electric field is finite everywhere, but will diverge algebraically as one reduces k0d 3 0. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 39: 282–286, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ mop.11191
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تاریخ انتشار 2003