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Superlensing approach to a long-focus near-field probe

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Abstract

The present work considers the possibility of constructing a long-focus near-field probe owing to superlensing properties of a metal film at appropriate optical frequencies. Numerical modeling of a simple system of a screened dipole demonstrates the improvement of the field confinement behind the screen, even in comparison with a closer bare dipole. Behavior of the field confinement behind the screen can be considered as near-field focusing and holds great promise in the construction of a remote probe for near-field optics.

© 2008 Optical Society of America

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