2D AlGaAs/AlOx photonic crystal high-Q resonator around 1.5μm

We report experimental results on a two dimensional Al/sub 0.3/Ga/sub 0.7/As photonic crystal slab which exhibits a 1.6 nm full width at half maximum resonance around 1.5 /spl mu/m in reflectivity at normal incidence with respect to the plane of periodicity. The slab is supported by an AlO/sub x/ low index thick layer that plays the role of an efficient heat sink. Light with peak intensity greater than 10 GW/cm/sup 2/ can be incident on the slab without damaging the sample.