Subwavelength imaging at infrared frequencies using an array of metallic nanorods

MG Silveirinha, PA Belov, CR Simovski - Physical Review B—Condensed …, 2007 - APS
Physical Review B—Condensed Matter and Materials Physics, 2007APS
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 …
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.
American Physical Society
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