Pattern (1 of 2) (IMAGE) Penn State Caption (l) This is a drawing of the metamaterial absorber pattern. (r) This is an actual metamaterial absorber pattern. Credit Bossard, Penn State Usage Restrictions Non commercial use only 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.