title: Mode density inside an omnidirectional mirror is heavily directional but not small.
abstract: We show that ominidirectional reflection is not a sufficient signature of a photonic bandgap. Although dramatic angular redistribution takes place, the mode density of the electromagnetic field is hardly altered within the ominidirectional reflection range but rather has characteristics typical of a waveguide. The strikingly large polarization anisotropy is due to the huge dielectric contrast but not to a photonic bandgap.
authors: C
authors: C
authors: Hooijer
authors: D
authors: D
authors: Lenstra
authors: A
authors: A
authors: Lagendijk