Negative refraction and imaging properties of circular photonic crystals

Meng Chu Tseng, Hung Wen Wang, Lien-Wen Chen

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The electromagnetic wave propagation in a two-dimensional (2D) circular photonic crystal (CPC) is investigated. The CPC structure is composed of air holes in the dielectric background material. The finite element method is used to study the optical and propagating properties of the CPC slab. Numerical simulations show that negative refraction and near-field imaging can appear in a 2D CPC slab. We also find that the high-symmetry CPC slab possesses an optics axis along the vertical direction intersecting the symmetric center. As a result, the CPC slab can exhibit an excellent imaging performance when a source is placed on the optical axis.

Original languageEnglish
Pages (from-to)1044-1047
Number of pages4
JournalPhysica B: Condensed Matter
Issue number4
Publication statusPublished - 2011 Feb 1

All Science Journal Classification (ASJC) codes

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


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