This article is cited in 7 papers

CONDENSED MATTER

Nonzeroth-order anomalous optical transparency in modulated metal films owing to excitation of surface plasmon polaritons: an analytical approach

A. V. Kats, A. Yu. Nikitin

Usikov Institute for Radiophysics and Electronics NAS 61085 Kharkiv, Ukraine

Abstract: The problem of anomalous light tunneling through periodically modulated metal films is examined in a purely analytical approach. The approach uses large magnitude of the dielectric permittivity of metals in the visible and near infrared (it is equivalent to that resulting in the Leontovich boundary conditions for semi-infinite problems). It is shown that the anomalous transparency recently discovered experimentally is caused by the excitation of single- or double-boundary surface plasmon polaritons due to film modulation. Dependencies of the resonance transparency on parameters of the problem are analyzed in detail, and the optimum parameters (optimal layer thickness and optimal modulation amplitude) corresponding to extreme values of the transmittance of both zero and nonzero diffraction orders have been found. Classifying the possible types of the resonances has allowed identifying special and nontrivial features of the effect. In particular, we predict strong nonzeroth-order anomalous transparency.

PACS: 42.25.-p, 73.20.Mf, 78.20.-e

Received: 19.04.2004
Revised: 06.05.2004

Language: English

 English version: Journal of Experimental and Theoretical Physics Letters, 2004, 79:12, 625–631

Bibliographic databases:

• 
•