Analysis of Spatial Resonances in the Field of Evanescent Waves
by the Discrete Source Method

N. V. Grishina, Yu. A. Eremin, and A. G. Sveshnikov

Moscow State University, Moscow, 119991 Russia

e-mail: eremin@cs.msu.ru

Received July 9, 2012; in final form, December 23, 2012

Abstract—Scattering properties of particles placed on a metal film deposited on a glass prism are studied in
detail using a computer implementation of the discrete source method. The presence of scattering cross-section
resonances in the region of angles of incidence of a plane wave has been established. The possibility of control-
ling the radiation directionality in the resonance range is demonstrated. Conditions that permit one to increase
the resonance intensity by an order of magnitude have been found.

DOI: 10.1134/S0030400X13070072

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