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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 3 — Mar. 1, 2006
  • pp: 485–489

Limits on the amplification of evanescent waves of left-handed materials

Thomas Koschny, Rabia Moussa, and Costas M. Soukoulis  »View Author Affiliations


JOSA B, Vol. 23, Issue 3, pp. 485-489 (2006)
http://dx.doi.org/10.1364/JOSAB.23.000485


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Abstract

We investigate the transfer function of the discretized perfect lens in finite-difference time-domain (FDTD) and transfer matrix method (TMM) simulations; the latter allow to eliminate the problems associated with the explicit time dependence in FDTD simulations. We also find that the finite discretization mesh acts like imaginary deviations from μ = ε = 1 and leads to a crossover in the transfer function from constance to exponential decay around k , max limiting the attainable super-resolution. We propose a simple qualitative model to describe the impact of the discretization. k , max is found to depend logarithmically on the mesh constant in qualitative agreement with the TMM simulations.

© 2006 Optical Society of America

OCIS Codes
(160.4670) Materials : Optical materials
(260.5740) Physical optics : Resonance

ToC Category:
Metamaterials

History
Original Manuscript: July 11, 2005
Manuscript Accepted: July 28, 2005

Citation
Thomas Koschny, Rabia Moussa, and Costas M. Soukoulis, "Limits on the amplification of evanescent waves of left-handed materials," J. Opt. Soc. Am. B 23, 485-489 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-3-485

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