title: Chaotic ray dynamics in slowly varying two-dimensional photonic crystals.
abstract: We use Hamiltonian optics to investigate chaotic ray dynamics in a photonic crystal whose lattice parameters vary slowly with position. The ray dynamics are chaotic even in regimes where only stable motion has been found in previous studies of energy band transport. Stable ray paths provide dynamical barriers that localize chaotic motion to certain regions of the photonic crystal.
authors.affiliation: School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, UK. paul.wilkinson@nottingham.ac.uk
authors.forename: Paul
authors.initials: P
authors.lastname: Wilkinson
authors.forename: Mark
authors.initials: M
authors.lastname: Fromhold