Materializing a binary hyperlens design

Alexander V Kildishev,Evgenii E Narimanov,Uday K Chettiar,Zubin Jacob,Vladimir M Shalaev

doi:10.1063/1.3081403

Alexander V Kildishev, Evgenii E Narimanov + Show 3 more

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https://doi.org/10.1063/1.3081403

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Journal: Applied Physics Letters	Publication Date: Feb 16, 2009
Citations: 29	License type: cc-by

Affiliation: Purdue University West Lafayette

Abstract

We present a design of cylindrical hyperlens made of a layered binary material. The design approach uses an improved effective medium theory to take account of radius-dependent effects due to curvature of material interfaces resulting in nonperiodically distributed thicknesses of the lens layers. The performance of this lens is compared versus the designs with periodically thick layers, which we showed in earlier papers. Detailed quantitative results analyzed for the lenses with the same number and starting order of layers prove better functioning of the lens designed with this approach.

Highlights

The recent advancement theory of hyperlens and enhanced nanofabrication techniques have provided us with a fresh perspective on magnifying subwavelength imaging devices made of anisotropic materials with hyperbolic dispersion.1,2 In prefabrication design and experiments the required anisotropy was achieved through the fabrication of a cylindrical lamellar structure made of two distinct elementary materialsi.e., a binary metal-dielectric composite
The focus of our study isihow to quantify, at least in quasistatic limit, the genuinely curvilinear interfaces of the cylindrical hyperlens in a radiusdependent effective medium theoryEMTandiiif this EMT could improve the performance of the cylindrical hyperlens
The numerical analysis is built on the solution of the wave equation in piecewise homogeneous cylindrical coordinates, which has been widely detailed in literature

Summary

Introduction

The recent advancement theory of hyperlens and enhanced nanofabrication techniques have provided us with a fresh perspective on magnifying subwavelength imaging devices made of anisotropic materials with hyperbolic dispersion.1,2 In prefabrication design and experiments the required anisotropy was achieved through the fabrication of a cylindrical lamellar structure made of two distinct elementary materialsi.e., a binary metal-dielectric composite. Birck Nanotechnology Center and School of Electrical and Computer Engineering, Purdue University, shalaev@purdue.edu Follow this and additional works at: http://docs.lib.purdue.edu/nanopub Part of the Nanoscience and Nanotechnology Commons

Results

Conclusion