Diffractive nanoslit lenses for subwavelength focusing
Abstract
Creating a subwavelength focus spot from nanoslits becomes possible when diffraction occurs inside strongly anisotropic materials with hyperbolic dispersion. In this work, we study diffraction from nanoslits and numerically show that the interference patterns could be smaller than lambda/10. The designs studied in this work are feasible with current nanofabrication techniques. We also review our recent work on metal nanoslit lenses, which behave as conventional convex or concave dielectric lenses depending on the linear polarization of incident light. (c) 2012 Elsevier B.V. All rights reserved.
Keywords
Metamaterials; Plasmonics; Nanoslilts; Diffraction; METAMATERIALS; TRANSMISSION; ARRAYS; LIGHT
DOI
10.1016/j.optcom.2012.01.042
Citation
Optics Communications Volume 285, Issue 16, 15 July 2012, Pages 3368–3372
Date of this Version
7-15-2012
Recommended Citation
Ishii, Satoshi; Drachev, Vladimir P.; and Kildishev, Alexander V., "Diffractive nanoslit lenses for subwavelength focusing" (2012). Birck and NCN Publications. Paper 1161.
http://dx.doi.org/10.1016/j.optcom.2012.01.042