Spectral negative refraction and focusing analysis of a two-dimensional left-handed photonic crystal lens

K. Guven*, K. Aydin, K. B. Alici, C. M. Soukoulis, E. Ozbay

*Corresponding author for this work

Research output: Contribution to journalArticle

74 Scopus citations

Abstract

We report the spectral refraction analysis and focusing properties of a two-dimensional, dielectric photonic crystal (PC) slab in freespace. A transverse electric polarized upper band of the crystal is used. The measured refraction spectra indicates that a highly isotropic negative index of refraction is present in the measured frequency range of the band. We demonstrate experimentally and numerically the focusing of the field emitted from an omnidirectional source placed in front of the crystal. Both the source and the focus pattern are away from the PC interfaces of the order of several wavelengths. The focus pattern mimics the arbitrary lateral and longitudinal shifts of the source, which is a manifestation of true flat lens behavior.

Original languageEnglish (US)
Article number205125
Pages (from-to)205125-1-205125-5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume70
Issue number20
DOIs
StatePublished - Nov 1 2004

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Spectral negative refraction and focusing analysis of a two-dimensional left-handed photonic crystal lens'. Together they form a unique fingerprint.

  • Cite this