Telecommunications and Radio Engineering

ISSN for PRINT: 0040-2508

For Online Access

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2007, Volume66

Issue 7

97 pages

DOI: 10.1615/TelecomRadEng.v66.i7

Issue price - $237.00

V. M. Fitio
Lviv Polytechnic National University, 12 St. Bandera Str., Lviv, 79013, Ukraine

H. P. Laba
Lviv Polytechnic National University, 12 St. Bandera Str., Lviv, 79013, Ukraine

Ya. V. Bobitski
Lviv Polytechnic National University, 12 St. Bandera Str., Lviv, 79013, Ukraine; and Institute of Technology, University of Rzeszow, 16A Rejtana Str., 35-959 Rzeszow, Poland

Using the coupled wave method an absorption of electromagnetic waves in a grating-metallic substrate system has been analyzed; in so doing a grating can be both dielectric and metallic. It is proved that at certain wavelength resonance of plasmons can be achieved, that results in completed absorption of electromagnetic wave by system. For comparison the research of plasmons resonance excited by a prism into thin silver film has been carried out. It is ascertained that here on certain conditions total absorption can be attained, too, at that within resonance range a strong dependence on incidence angle at metallic film has been observed. It is shown that for both methods of plasmons excitation within resonance range the identical dependences of reflectance on refractive index of medium, which contacts directly with gratings and thin metallic film, has been observed, at that the refractive index change by 0.001 leads to the reflection coefficient change from zero to 0.8.

DOI: 10.1615/TelecomRadEng.v66.i7.40 Download article, 607-618 pages

Article price - $35.00

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