Graham Fleming and Group (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption From left, Nicholas Lewis, Graham Fleming and Tom Oliver developed 2D-EV, a spectroscopy technique that enables electronic and molecular dynamics during a photochemical reaction to be simultaneously monitored on a femtosecond time-scale. Credit Photo by Roy Kaltschmidt, Berkeley Lab 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.