Focusing by Plano-Concave lens using Negative Refraction

Details Focusing by Plano-Concave lens using Negative Refraction Focusing by Plano-Concave lens using Negative Refraction

2005-02-24

arxiv.org/abs/cond-mat/0502595v1

APPLIED PHYSICS LETTERS 86, 201108 (2005)

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1063/1.1927712

We demonstrate focusing of a plane microwave by a plano-concave lens fabricated from a photonic crystal (PhC) having negative refractive index and left-handed electromagnetic properties. An inverse experiment, in which a plane wave is produced from a source placed at the focal point of the lens is also reported. A frequency dependent negative refractive index, is obtained for the lens from the experimental data which matches well with that determined from band structure calculations.

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