Analytical approach to resonance diffraction under Wood anomalies existence for crossed gratings

Author

Kats, A.V. ; Nikitin, A.Yu.

Author_Institution

Inst. of Radiophys. & Electron., NASU, Kharkiv, Ukraine

fYear

2002

fDate

2002

Firstpage

244

Lastpage

248

Abstract

The results of both numerical and analytical examination of Wood-type anomalies for diffraction at crossed gratings are presented. The general reflective properties of the double periodic structures formed by modulation of the electromagnetic properties of the surface are investigated. The dependence of the reflection coefficients on the grating orientations, periods, form and modulation magnitudes, and on the angle of incidence is examined. In particular, it is shown that the total suppression of the specular reflection (TSSR) of an arbitrary polarized incident wave is possible for normal incidence and corresponding specific values of the gratings parameters are found.

Keywords

diffraction gratings; light diffraction; periodic structures; polaritons; surface plasmon resonance; Wood-type anomalies; arbitrary polarized incident wave; crossed gratings; double periodic structures; grating orientation; modulation magnitudes; propagating polaritons; reflection coefficients; resonance diffraction; surface electromagnetic properties modulation; surface plasmon diffraction; total suppression of specular reflection; Diffraction gratings; Equations; Geometry; Impedance; Phase modulation; Plasmons; Polarization; Resonance; Scattering parameters; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

4thLaser and Fiber-Optical Networks Modeling, 2002. Proceedings of LFNM 2002. International Workshop on

Print_ISBN

0-7803-7372-3

Type

conf

DOI

10.1109/LFNM.2002.1014185

Filename

1014185