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Topology optimization and fabrication of photonic crystal structures

2004; Optica Publishing Group; Volume: 12; Issue: 9 Linguagem: Inglês

10.1364/opex.12.001996

1094-4087

P.I. Borel, Anders Harpøth, Lars H. Frandsen, Martin Kristensen, Peixiong Shi, Jakob S. Jensen, Ole Sigmund,

Optical Coatings and Gratings

Topology optimization is used to design a planar photonic crystal waveguide component resulting in significantly enhanced functionality. Exceptional transmission through a photonic crystal waveguide Z-bend is obtained using this inverse design strategy. The design has been realized in a silicon-on-insulator based photonic crystal waveguide. A large low loss bandwidth of more than 200 nm for the bandgap polarization is experimentally confirmed.