Abstract
The polarization behavior of metallic nano-rods has been analyzed by means of the finite-differencetime-domain method. When the average spacing between the nano-rods is less than a half wavelength, the layer reflects the light polarized parallel to the nano-rods, as in a nano-slit. However, when the spacing is larger than a half wavelength, the metallic surface absorbs the light, polarized perpendicular to the rods, leading to a polarization switching. Multiple layers of nano-rods can make a polarizer with a high extinction ratio and good transmittance.
| Original language | English |
|---|---|
| Pages (from-to) | 3308-3310 |
| Number of pages | 3 |
| Journal | Journal of Nanoscience and Nanotechnology |
| Volume | 10 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2010 |
Keywords
- FDTD
- Nano-Rod
- Polarizer
- Wire grid polarizer