Observation of enhanced transmission for s-polarized light through a subwavelength slit
Abstract
Enhanced optical transmission (EOT) through subwavelength apertures is usually obtained for p-polarized light. The present study experimentally investigates EOT for s-polarized light. A subwavelength slit surrounded on each side by periodic grooves has been fabricated in a gold film and covered by a thin dielectric layer. The excitation of s-polarized dielectric waveguide modes inside the dielectric film strongly increases the s-polarized transmission. Transmission measurements are compared with a coupled mode model and show good qualitative agreement. Adding a waveguide can improve light transmission through subwavelength apertures, as both s and p-polarization can be efficiently transmitted.
Keywords
Cite
@article{arxiv.0912.2452,
title = {Observation of enhanced transmission for s-polarized light through a subwavelength slit},
author = {M. Guillaumee and A. Yu. Nikitin and M. J. K. Klein and L. A. Dunbar and V. Spassov and R. Eckert and L. Martin-Moreno and F. J. Garcia-Vidal and R. P. Stanley},
journal= {arXiv preprint arXiv:0912.2452},
year = {2017}
}
Comments
11 pages, 3 figures, submitted to Applied Physics Letters