title: Investigation of optical properties of circular spiral photonic crystals.
abstract: The photonic bandgap of three-dimensional photonic crystals, formed by arranging circular spirals in face-centre-cubic lattice, was theoretically investigated. The structure was found to have a relative photonic bandgap of up to 25% in both direct and inversed configurations. The conditions under which the structure has a bandgap larger than 10% are described. Some considerations for optimizing such photonic crystal fabrication by two-photon polymerization are given. The theoretical results are implemented to fabricate polymeric structures that can be used as templates for photonic crystals with full photonic bandgap larger than 10% centered in the near-infrared region.
authors: Nir
authors: N
authors: Grossman
authors: Aleksandr
authors: A
authors: Ovsianikov
authors: Alexander
authors: A
authors: Petrov
authors: Manfred
authors: M
authors: Eich
authors: Boris
authors: B
authors: Chichkov