We have subsequently developed planar photonic crystals (PPCs) specifically for nonlinear optical conversion studies. In particular we designed and realized a square-lattice PPC that has bands that exhibit almost no dispersion along the entire /spl Gamma/-X direction of the square Brillouin zone. These flat bands offer tuning flexibility and conversion efficiency advantages when considering PPCs as hosts for 2 nd harmonic generation. We have recently extended our self-consistent scattering model to include 2 nd order polarization terms. This allows us to estimate the absolute external second harmonic generation efficiency in specular reflection when exciting the PPC from the top half space.
Linear and nonlinear optical properties of planar photonic crystals
01.01.2001
182146 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
TuJ1 Linear and Nonlinear Optical Properties of Planar Photonic Crystals
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