Different mechanisms for efficient optical transmission through bilayered subwavelength patterned metal films
Abstract
Light transmission through bilayered thin metal films perforated with subwavelength hole arrays are numerically studied based on a full-vector finite-difference time-domain approach. A variety of transmission peaks originating from different physical mechanisms are observed. In addition to the direct tunnelling and Fabry-P\`{e}rot resonances, generally possessed by idealized bilayered dielectric slabs, the near-field localized plasmon polaritons also play important roles. They not only influence the direct tunnelling in a destructive or constructive way, the interactions between these localized plasmon polaritons on different metal films also result in additional channels which transfer optical energy effectively.
Cite
@article{arxiv.0903.2075,
title = {Different mechanisms for efficient optical transmission through bilayered subwavelength patterned metal films},
author = {Jian Wang and Yong Zeng and Xiaoshuang Chen and Wei Lu and Jerome V. Moloney},
journal= {arXiv preprint arXiv:0903.2075},
year = {2015}
}
Comments
4 pages, 2 figures. submitted