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Negative refraction and sub-wavelength focusing in the visible range using transparent metal-dielectric stacks

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10 Author(s)

Summary form only given. Negative refraction and sub-wavelength imaging in the visible part of the spectrum are numericlly investigated using a multilayer, metal-dielectric photonic band gap structure. Results show that the main underlying physical mechanism for sub-wavelength focusing comes as a result of resonance tunneling, field localization and propagation effects, and that surface plasmons do not play a significant role. The advantage of these structures is that both tunability and high transmission are achievable across the visible wavelength regime as well as into the infrared regime.

Published in:

Biophotonics, Nanophotonics and Metamaterials, 2006. Metamaterials 2006. International Symposium on

Date of Conference:

16-18 Oct. 2006