title: Fabrication of planar photonic crystals in a chalcogenide glass using a focused ion beam.
abstract: Free-standing "AMTIR-1" (Ge33As12Se55) chalcogenide glass films have been patterned using a focused ion beam (FIB) to create two-dimensional photonic crystal membranes. The triangular lattices were selected for a photonic bandgap relevant to fiber telecommunications. Optical measurements of transmission spectra as a function of incident angle showed clear signs of Fano resonances, indicating that the structures had strongly modified guided modes.
authors.forename: Darren
authors.initials: D
authors.lastname: Freeman
authors.forename: Steve
authors.initials: S
authors.lastname: Madden
authors.forename: Barry
authors.initials: B
authors.lastname: Luther-Davies