Rewritable Waveguide (image) University of Texas at Austin Share Print E-Mail Caption This image is a video still that shows the researchers rewriting a waveguide, a component that guides light, using a laser on nanomaterial. (The waveguide is the horizontal line on the box.) Credit Cockrell School of Engineering Usage Restrictions None 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.