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