title: Fabrication and characterization of silicon woodpile photonic crystals with a complete bandgap at telecom wavelengths.
abstract: By using direct laser writing into a novel commercially available photoresist and a silicon-double-inversion procedure followed by tempering of the silicon structures, we realize high-quality centered-tetragonal woodpile photonic crystals with complete photonic bandgaps near 1.55 microm wavelength. The 6.9% gap-to-midgap ratio bandgap is evidenced by the comparison of measured transmittance and reflectance spectra with band-structure and scattering-matrix calculations.
authors.affiliation: Institut für Angewandte Physik and DFG-Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), D-76128 Karlsruhe, Germany. isabelle.staude@physik.uni-karlsruhe.de
authors.forename: I
authors.initials: I
authors.lastname: Staude
authors.forename: M
authors.initials: M
authors.lastname: Thiel
authors.forename: S
authors.initials: S
authors.lastname: Essig
authors.forename: C
authors.initials: C
authors.lastname: Wolff
authors.forename: K
authors.initials: K
authors.lastname: Busch
authors.forename: G
authors.initials: G
authors.lastname: von Freymann
authors.forename: M
authors.initials: M
authors.lastname: Wegener