SLAO Phosphor Glows On and Off (VIDEO) University of California - San Diego This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption UV light shines to make the phosphor glow green-yellow or blue depending on the chemical activator mixed in. Credit UC San Diego Jacobs School of Engineering Usage Restrictions Please credit: UC San Diego Jacobs School of Engineering 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.