Dugan Hayes photo (IMAGE) University of Rhode Island Caption Dugan Hayes and Cali Antolini using a technique involving laser pulses fired at intervals on the order of quadrillionths of a second, can investigate chemical reactions driven by light. Credit URI Photo/Michael Salerno Usage Restrictions none License Original 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.