Semiconductor lasers use the optical properties of semiconducting materials to produce coherent light. Electrons and their positive-charge counterpart called holes are injected into an optically active region where they combine together and generate photons. Reflection of light from semiconductor–air or semiconductor–semiconductor interfaces proved the necessary optical feedback.
Latest Research and Reviews
Research | | openNature Communications 8, 15389
News and Comment
Research Highlights |Nature Photonics 11, 141
Comments and Opinion |Nature Materials 15, 1049–1052
News and Views |Nature Photonics 9, 786–787