Ballistic optical material (IMAGE) Purdue University Caption Newly developed ballistic optical materials consist of a composite of two transparent materials, creating a plasmonic material. Credit Evan Simmons and Kun Li Usage Restrictions None 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.