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Photonic crystals based on amorphous chalcogenides

M. POPESCU1,* , D. MEZZANE2

Affiliation

  1. National Institute of Materials Physics, Bucharest-Magurele, P. O. Box MG. 7, Romania
  2. Laboratory of Condensed Matter and Nanostructures, Faculty of Science and Technology, Cadi Ayyad University, Marrakesh, Morocco

Abstract

Amorphous chalcogenide structures are proposed for designing meta-materials as e.g. photonic crystals with stop gaps in the far infrared and microwave range. Micrometer diameter lenslets made of As2S3 glass are used to this purpose. Special heat treatment is proposed to get a shrinkage of the structure built from stacks of lenslets, and creating a modulated woodpile configuration based on the photo-fluidity effect in arsenic sulphide chalcogenides. The simple procedure allows the tuning of the lattice parameter in order to reach the desired optical or microwave properties of the photonic crystal with stop band gaps.

Keywords

Amorphous chalcogenide, Meta-material, Photonic crystal, Lenslet.

Citation

M. POPESCU, D. MEZZANE, Photonic crystals based on amorphous chalcogenides, Optoelectronics and Advanced Materials - Rapid Communications, 2, 1, January 2008, pp.26-28 (2008).

Submitted at: Jan. 3, 2007

Accepted at: Jan. 16, 2008