%0 Journal Article
%T Efficient light coupling from integrated single-mode waveguides to supercollimating photonic crystals on silicon-on-insulator platforms
%+ Groupe d'étude des semiconducteurs (GES)
%A Vynck, Kevin
%A Centeno, Emmanuel
%A Le Vassor d'Yerville, Marine
%A Cassagne, David
%< avec comité de lecture
%Z 08-090
%@ 0003-6951
%J Applied Physics Letters
%I American Institute of Physics
%V 92
%P 103128
%8 2008
%D 2008
%Z 0711.1042
%R 10.1063/1.2898221
%K NEGATIVE-REFRACTION
%K SELF-COLLIMATION
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Journal articles
%X We propose a practical and efficient solution for the coupling of light from integrated single-mode waveguides to supercollimating planar photonic crystals (PhCs) on conventional silicon-on-insulator platforms. The device consists of a rib waveguide, designed to sustain spatially extended single modes and matched to a supercollimating PhC, which has been truncated at its boundary to improve impedance matching between the two photonic components. Three-dimensional simulations show transmission efficiencies up to 96% and reflections below 0.2% at wavelengths close to 1.55 mu m. This approach constitutes a significant step toward the integration of supercollimating structures on photonic chips. (c) 2008 American Institute of Physics.
%G English
%L hal-00437946
%U https://hal.science/hal-00437946
%~ CNRS
%~ UNIV-MONTP2
%~ GES
%~ UNIV-MONTPELLIER
%~ UM1-UM2