Focusing a beam of light with left-handed metamaterials

Anatoliy O. Pinchuk, George C Schatz

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We present a theoretical study of a new metamaterial with a gradient negative index of refraction which can focus a collimated beam of light coming from a distant object. Using the Fermat principle for minimum time propagation of a light beam passing an optically inhomogeneous medium we derive a gradient of the negative index of refraction for a slab of the negative refractive metamaterial. A thin metal film pierced with equidistantly spaced circular holes having specific profile of their diameters was used to model a metamaterial with a gradient of the negative index of refraction. Based on the effective medium approximation for the real effective dielectric permittivity of the patterned metal film pierced with round or square holes, we design a profile of the structured film for a given focal length. FDTD calculations confirm the focusing of a plane electromagnetic wave passing through a system of equidistantly spaced holes in a metal slab with decreasing diameters towards the edges of the slab.

Original languageEnglish
Pages (from-to)1381-1386
Number of pages6
JournalSolid-State Electronics
Volume51
Issue number10 SPEC. ISS
DOIs
Publication statusPublished - Oct 2007

Fingerprint

Metamaterials
refraction
slabs
Refraction
metal films
gradients
Metals
Fermat principle
profiles
finite difference time domain method
light beams
electromagnetic radiation
Electromagnetic waves
permittivity
Wave propagation
Permittivity
propagation
approximation
metals

Keywords

  • Focusing
  • Left-handed metamaterials
  • Thin films

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Focusing a beam of light with left-handed metamaterials. / Pinchuk, Anatoliy O.; Schatz, George C.

In: Solid-State Electronics, Vol. 51, No. 10 SPEC. ISS, 10.2007, p. 1381-1386.

Research output: Contribution to journalArticle

Pinchuk, Anatoliy O. ; Schatz, George C. / Focusing a beam of light with left-handed metamaterials. In: Solid-State Electronics. 2007 ; Vol. 51, No. 10 SPEC. ISS. pp. 1381-1386.
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