An optical resonator can include an optical feedback structure disposed on a substrate, and a composite including a matrix including a chromophore. The composite disposed on the substrate and in optical communication with the optical feedback structure. The chromophore can be a semiconductor nanocrystal. The resonator can provide laser emission when excited.
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
This invention was made with government support under Grant No. CHE-0209898, awarded by the National Science Foundation and Grant No. DE-FG02-02ER45974, awarded by the Department of Energy. The government has certain rights in the invention.