SIMULATION OF LIGHT-EMISSION FROM THIN-FILM MICROCAVITIES

In light-emitting devices based on thin-film technology, light waves t hat are partially or totally reflected at interfaces between different materials interfere and influence the angular distribution of the emi tted light. For an electrical dipole transition, the radiation pattern is equivalent to that of an electrical dipole antenna. New theoretica l expressions are provided for the radiation, discriminating for polar ization, emission angle, absorption, and transmission; and the numeric al calculation of discrete modes, narrow modes, and evanescent waves n ear absorbing media is discussed. (C) 1998 Optical Society of America.