Optoelectronic Device (IMAGE) University of Southampton Caption This is an optoelectronic device formed of multiple quantum wells, whose design is optimised to maximise the dipole and thus its efficiency, emitting terahertz light. Credit University of Southampton Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.