Title :
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
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;
Conference_Titel :
4thLaser and Fiber-Optical Networks Modeling, 2002. Proceedings of LFNM 2002. International Workshop on
Print_ISBN :
0-7803-7372-3
DOI :
10.1109/LFNM.2002.1014185
