Departmental Papers (ESE)


We apply the optical nanocircuit concepts to design and analyze in detail a three-dimensional (3D) plasmonic nanotransmission line network that may act as a relatively broadband negative-refraction metamaterial at infrared and optical frequencies. After discussing the heuristic concepts in our theory, we show full-wave analytical results of the expected behavior of such materials, which show increased bandwidth and relative robustness to losses. The possibility and constraints of getting a 3D fully isotropic response are also explored and conditions for minimal losses and increased bandwidth are discussed. Full-wave analytical results for some design examples employing realistic plasmonic materials at infrared and optical frequencies are also presented, and the case of a subwavelength imaging system using a slab of this material is numerically investigated.

Document Type

Journal Article

Date of this Version

January 2007


Reprinted in Physical Review B, Volume 75, Issue 2, January 2007, Article 024304, 20 pages.
Publisher URL:


metamaterials; optical materials; light refraction; refractive index; integrated optics; nanotechnology



Date Posted: 14 March 2007

This document has been peer reviewed.