Asymmetrical Metawaveguide (IMAGE) University at Buffalo Caption The image shows a weak control beam (narrow red line, far right) and a more intense laser signal (larger red line, far left) within an asymmetrical metawaveguide (purple box). Credit: University at Buffalo. Credit University at Buffalo Usage Restrictions This image may only be used in news reports covering the research described in the related press release. 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.