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Article overview
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Near-Field Focusing Plates and Their Design | | A. Grbic
; R. Merlin
; | | Date: |
1 Aug 2007 | | Abstract: | This paper describes the design of near-field focusing plates, which are
grating-like structures that can focus electromagnetic radiation to spots or
lines of arbitrarily small subwavelength dimension. A general procedure is
outlined for designing a near-field plate given a desired image, and its
implementation at microwave frequencies is discussed. Full-wave (method of
moments) simulations clearly demonstrate the near-field plate’s ability to
overcome the diffraction limit. Finally, it is shown that the performance of
near-field plates is weakly affected by losses. | | Source: | arXiv, 0708.0049 | | Services: | Forum | Review | PDF | Favorites | |
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