Theory of extraordinary light transmission through arrays of subwavelength slits

B. Sturman, E. Podivilov, and M. Gorkunov
Phys. Rev. B 77, 075106 – Published 7 February 2008

Abstract

We propose a self-consistent theory of the extraordinary light transmission through periodic arrays of subwavelength holes in metals. Its basis is an expansion of the light fields in terms of exact eigenmodes—propagating, evanescent, and anomalous—investigated in our recent paper and matching at the interfaces using the exact boundary conditions. An excellent convergence of this expansion has allowed us to decompose the anomalous transmission phenomenon into elementary parts and to investigate the characteristic parametric dependences. Transmission properties of a single interface play a key role in our theory in the subwavelength range. They include the coefficient of energy transmission into the propagating mode and the phases of the reflected and transmitted waves. These key parameters possess remarkable resonant dependences on the wavelength of light; they are sensitive to the size of the holes and rather insensitive to weak losses. The surface-plasmon-related features of the above characteristics are established. Transmission properties of a slab are expressed by the single-interface parameters, the phase incursion for the propagating mode, and the propagating losses.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
4 More
  • Received 3 July 2007

DOI:https://doi.org/10.1103/PhysRevB.77.075106

©2008 American Physical Society

Authors & Affiliations

B. Sturman and E. Podivilov

  • Institute of Automation and Electrometry, Russian Academy of Sciences, 630090 Novosibirsk, Russia

M. Gorkunov

  • Institute of Crystallography, Russian Academy of Sciences, Leninskii Prospekt 59, 119333 Moscow, Russia and Department of Mathematics, University of Strathclyde, 26 Richmond Street, Glasgow G1 1XH, United Kingdom

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 77, Iss. 7 — 15 February 2008

Reuse & Permissions
Access Options

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×