Laser Light from a Nanowire (image) University of Pennsylvania Share Print E-Mail Caption Laser light is emitted from the end of a cadmium sulfide nanowire. Credit University of Pennsylvania Usage Restrictions With credit. Share Print E-Mail 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.