Frequency shift of the band gap of the surface polaritons on a grating
- 1 June 1985
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 57 (11) , 4874-4878
- https://doi.org/10.1063/1.335308
Abstract
The reflectivity of the surface polaritons incident normally on a grating of finite length is investigated without assuming that the amplitude of the grating is small. The maximum reflectivity is found to be essentially the same as that obtained from a small-amplitude grating theory, but there is an upward shift in the center frequency of the band gap, with the shift increasing with the increase of the amplitude of the grating. A physical explanation for the shift of the band gap is provided.This publication has 0 references indexed in Scilit: