title: Analysis of the angular acceptance of surface plasmon Bragg mirrors.
abstract: We analyze an important aspect of the behavior of surface plasmon polariton (SPP) Bragg mirrors: the dependence of the angular acceptance for reflection on the incidence angle. By means of leakage radiation microscopy, both in direct and Fourier space, we observe that the angular acceptance diminishes for increasing incidence angles. This effect, which can considerably affect the design of devices based on these elements, is shown to be the consequence of the decrease of the bandgap width with increasing incidence angle.
authors.affiliation: ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860, Castelldefels (Barcelona), Spain. maria-ujue.gonzalez@icfo.es
authors.forename: María Ujué
authors.initials: MU
authors.lastname: González
authors.forename: Andrey L
authors.initials: AL
authors.lastname: Stepanov
authors.forename: Jean-Claude
authors.initials: JC
authors.lastname: Weeber
authors.forename: Andreas
authors.initials: A
authors.lastname: Hohenau
authors.forename: Alain
authors.initials: A
authors.lastname: Dereux
authors.forename: Romain
authors.initials: R
authors.lastname: Quidant
authors.forename: Joachim R
authors.initials: JR
authors.lastname: Krenn
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D007909:Lenses; D008027:Light; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000295:instrumentation*