Light emitting diode with a microcavity and a method of producing such device

摘要

A device for emitting radiation at a predetermined wavelength is disclosed, said device having a cavity comprising a first region and a second region of opposite conductivity type and wherein a barrier is provided for localising the charge carriers of said first and said second region substantially at the antinode of the standing wave pattern of said cavity, the recombination of the charge carriers at the barrier creating said radiation, the emission wavelength of said radiation being determined by said cavity. <IMAGE>