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Metal nanoslit lenses with polarization-selective design

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Abstract

We present comprehensive studies on thin diffraction lenses made of arrays of subwavelength, parallel nanoslits in a gold film. Such a nanoslit lens can operate either as a conventional convex or concave lens. The lenses can be designed to focus linearly polarized light with polarization either perpendicular (TM-lens) or parallel to the slits (TE-lens), while the orthogonal polarization diverges when passing through the lens. The designs of each lens are initially built on the dispersion relations for wave propagation through a parallel-plate waveguide. Both TM- and TE-lenses were realized experimentally, and full-wave numerical simulations fully support the experimental results.

© 2011 Optical Society of America

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Corrections

Satoshi Ishii, Alexander V. Kildishev, Vladimir M. Shalaev, Kuo-Ping Chen, and Vladimir P. Drachev, "Metal nanoslit lenses with polarization-selective design: erratum," Opt. Lett. 36, 1244-1244 (2011)
https://opg.optica.org/ol/abstract.cfm?uri=ol-36-7-1244

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