Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1538136 | Optics Communications | 2010 | 4 Pages |
Abstract
The plasmonic properties in coupled metallic nanotube arrays are investigated theoretically by the finite-difference time-domain (FDTD) method. We calculate the transmission spectra and the electric field distributions. We show that there is a photonic band gap over a wide optical wavelength range and the transmission spectrum depends strongly on the inner radii, the separation distance and the number of the nanotubes. Based on the localized nature of the field distribution, we also clearly show that the presence of local plasmon resonant modes that originate from multipolar plasmon polaritons and a big magnitude of opposing surface charges build up in the gap between adjacent nanotubes.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Hongjian Li, Shaoli Fu, Haiqing Xu, Suxia Xie, Xin Zhou, Jinjun Wu,