A Laser Stopwatch (IMAGE) University of Arizona Caption Calley Eads, a fifth-year doctoral student in the UA's Department of Chemistry and Biochemistry, aligns a laser system used to track electrons on time-scales at the limits of what can be measured. In her research, she investigates materials that could one day bring faster computing and more efficient solar cells. Credit Kyle Mittan/UANews Usage Restrictions This visual may only be used in conjunction of reporting/posting of this news release. Credit must be stated as indicated. 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.