Performance of waveguide-based two-dimensional photonic-crystalmirrors studied with Fabry-Perot resonators

摘要

As a step toward the use of photonic crystals in optoelectronicndevices, we present a thorough study of 2-D photonic-crystal mirrorsnetched into a GaAs-AlGaAs planar waveguide. Fabry-Perot resonators arenfabricated to deduce the reflectivity, transmission, losses, as well asnthe penetration lengths of these mirrors. The guided photoluminescencenof InAs quantum dots embedded in GaAs is used to obtain the transmissionnspectra of these cavities. The varying thickness between the mirrorsnallows a scan across the whole bandgap spectral range. Quality factorsn(up to 200) and peak transmissions (up to 0.3) are measured showing thatnmirrors of four rows of holes have 88% reflectivity, 6% transmission andn6% losses. Losses are also related to a two-dimensional transfer matrixnmethod calculation including a recently introduced scheme to account fornlosses