Microresonators with a three-dimensional photon confinement. called photoni
c dots. have been fabricated by lithographic patterning of planar semicondu
ctor microcavities. Photonic molecules have been assembled from two identic
al photonic dots by connecting them by a narrow channel. Energies and field
distributions of the confined optical modes in these structures have been
studied by angle-resolved photoluminescence spectroscopy.