---
res:
  bibo_abstract:
  - Oblique propagation of semi-guided waves across slab waveguide structures with
    bent corners is investigated. A critical angle can be defined beyond which all
    radiation losses are suppressed. Additionally an increase of the curvature radius
    of the bends also leads to low-loss configurations for incidence angles below
    that critical angle. A combination of two bent corner systems represents a step-like
    structure, behaving like a Fabry-Perot interferometer, with two partial reflectors
    separated by the vertical height between the horizontal slabs. We numerically
    analyse typical high-index-contrast Si/SiO2 structures for their reflectance and
    transmittance properties. When increasing the curvature radius the resonant effect
    becomes less relevant such that full transmittance is reached with less critical
    conditions on the vertical distance or the incidence angle. For practical interest
    3-D problems are considered, where the structures are excited by the fundamental
    mode of a wide, shallow rib waveguide. High transmittance levels can be observed
    also for these 3-D configurations depending on the width of the rib.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Lena
      foaf_name: Ebers, Lena
      foaf_surname: Ebers
      foaf_workInfoHomepage: http://www.librecat.org/personId=40428
  - foaf_Person:
      foaf_givenName: Manfred
      foaf_name: Hammer, Manfred
      foaf_surname: Hammer
      foaf_workInfoHomepage: http://www.librecat.org/personId=48077
    orcid: 0000-0002-6331-9348
  - foaf_Person:
      foaf_givenName: Jens
      foaf_name: Förstner, Jens
      foaf_surname: Förstner
      foaf_workInfoHomepage: http://www.librecat.org/personId=158
    orcid: 0000-0001-7059-9862
  bibo_doi: 10.1364/OE.26.018621
  bibo_issue: '14'
  bibo_volume: 26
  dct_date: 2018^xs_gYear
  dct_language: eng
  dct_publisher: OSA Publishing@
  dct_subject:
  - tet_topic_waveguide
  dct_title: 'Oblique incidence of semi-guided planar waves on slab waveguide steps:
    effects of rounded edges@'
...