This article is cited in 6 papers

Optics of surfaces and interfaces

On the focusing of surface plasmonic waves on the free surface of a metal film

A. B. Petrin

Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow

Abstract: The excitation and focusing of a surface plasmonic wave on the free surface of a metal film in the Kretschmann scheme have been considered based on the theory of reflection of a plane electromagnetic wave from a flat-layered structure. A method of exciting a radially convergent surface plasmonic wave is proposed. The electric-field distribution at the focus is quantitatively investigated, and the conditions for its maximization are determined. The applications of the results obtained are discussed.

Received: 19.09.2018
Revised: 01.11.2018
Accepted: 06.11.2018

DOI: 10.21883/OS.2019.03.47378.276-18

 English version: Optics and Spectroscopy, 2019, 126:3, 269–278

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