Abstract
We demonstrate that an array of metallic nanorods enables subwavelength (near-field) imaging at infrared frequencies. Using an homogenization approach, it is theoretically proved that under certain conditions the incoming radiation can be transmitted by the array of nanorods over a significant distance with fairly low attenuation. The propagation mechanism does not involve a resonance of material parameters and thus the resolution is not strongly affected by material losses and has wide bandwidth. The subwavelength imaging with resolution by silver rods at and over a propagating distance of is demonstrated numerically using a full-wave electromagnetic simulator.
9 More- Received 12 September 2006
DOI:https://doi.org/10.1103/PhysRevB.75.035108
©2007 American Physical Society