Photonic crystals provide superb opportunities for tailoring of the photonic density of states. This ability can in turn be
explored to control radiation into far-field, enhance fluorescent light emission, as well as optimize laser emission. In
order to make these phenomena useful for large macroscopic devices, large-area nano-fabrication techniques have to be
successfully implemented. In this talk, I will present some of our recent theoretical and experimental progress in
exploring these opportunities.