Emission pattern of the developed element (IMAGE) Meijo University Caption Researchers fabricate a vertical AlGaN-based deep ultraviolet-light-emitting semiconductor laser device with potential applications in laser processing, biotechnology, and medicine. Credit Motoaki Iwaya / Meijo University Usage Restrictions This image may be used with appropriate credit. License Original 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.