title: Paired modes of heterostructure cavities in photonic crystal waveguides with split band edges.
abstract: We investigate the modes of double heterostructure cavities where the underlying photonic crystal waveguide has been dispersion engineered to have two band-edges inside the Brillouin zone. By deriving and using a perturbative method, we show that these structures possess two modes. For unapodized cavities, the relative detuning of the two modes can be controlled by changing the cavity length, and for particular lengths, a resonant-like effect makes the modes degenerate. For apodized cavities no such resonances exist and the modes are always non-degenerate.
authors.affiliation: CUDOS and IPOS, School of Physics, University of Sydney, Australia. sahand@physics.usyd.edu.au
authors.forename: Sahand
authors.initials: S
authors.lastname: Mahmoodian
authors.forename: Andrey A
authors.initials: AA
authors.lastname: Sukhorukov
authors.forename: Sangwoo
authors.initials: S
authors.lastname: Ha
authors.forename: Andrei V
authors.initials: AV
authors.lastname: Lavrinenko
authors.forename: Christopher G
authors.initials: CG
authors.lastname: Poulton
authors.forename: Kokou B
authors.initials: KB
authors.lastname: Dossou
authors.forename: Lindsay C
authors.initials: LC
authors.lastname: Botten
authors.forename: Ross C
authors.initials: RC
authors.lastname: McPhedran
authors.forename: C M
authors.initials: CM
authors.lastname: de Sterke
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D003460:Crystallization; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008962:Models, Theoretical; D017785:Photons; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000295:instrumentation*