Atto (image) Vienna University of Technology Share Print E-Mail Caption A laser pulse hits a tungsten surface on which iodine atoms have been depositied. Both the tungsten atoms and the iodine atoms lose electrons, which can then be measured. Credit TU Wien Usage Restrictions None Share Print E-Mail 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.