Proposal for Optical Super-Focusing with a Metal-Dielectric Waveguide Array

Details Proposal for Optical Super-Focusing with a Metal-Dielectric Waveguide Array Proposal for Optical Super-Focusing with a Metal-Dielectric Waveguide Array

2008-11-08

arxiv.org/abs/0811.1299v1

Physics

Optics

Scientific paper

In this paper, super-focusing using radiationless electromagnetic interference is extended to the visible regime. It is shown that the highest-order mode of a specifically designed metal-dielectric waveguide array can provide the rapidly oscillating source field for radiationless interference. Using finite-difference time-domain simulations, an example structure is demonstrated. This structure provides focusing to 0.21 of the optical wavelength at a distance of half the optical wavelength from the source.

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