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A spatial filter bank model of the Veselago–Pendry superlens

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Abstract

We present a canonical filter bank model that emulates the transmission of both propagating and evanescent electromagnetic fields through a Veselago–Pendry Superlens. The model consists of an array of coupled resonator pairs; each pair transmits one term of the spatial Fourier series of the object field. In addition to emulating the steady-state transfer function of the superlens, the model also approximates its dynamic response. Closed-form expressions for the values of the circuit elements are derived in terms of the geometry and the constitutive parameters of the lens at the frequency of operation in the steady state. Losses can be included by adding dissipative elements to the equivalent circuit. The concept of the Veselago–Pendry superlens as a filter in k-space provides physical insight into the resonant nature of image transmission and may suggest new ways to realize such a device.

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Authors and Affiliations

  1. Department of Electronics and Photonics, A*STAR Institute of High Performance Computing, 1 Fusionopolis Way, #16-16, Singapore, 138632, Singapore

    Ravi S. Hegde & Yew Li Hor

  2. Department of Electrical and Computer Engineering, University of Victoria, Victoria, BC, V8W 2Y2, Canada

    Wolfgang J. R. Hoefer

Authors
  1. Ravi S. Hegde
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  2. Yew Li Hor
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  3. Wolfgang J. R. Hoefer
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Correspondence to Ravi S. Hegde.

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Hegde, R.S., Hor, Y.L. & Hoefer, W.J.R. A spatial filter bank model of the Veselago–Pendry superlens. Appl. Phys. A 120, 25–33 (2015). https://doi.org/10.1007/s00339-015-9152-x

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  • DOI: https://doi.org/10.1007/s00339-015-9152-x

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