Ultrafast Orbital Tomography (VIDEO) Forschungszentrum Juelich This video is under embargo. Please login to access this video. Caption PTCDA molecules on a copper oxide surface are used as a sample. A molecular electron is excited by a laser pulse into another orbital, changing its spatial distribution. The electron in the excited orbital has a finite lifetime, which can be measured by ultrafast orbital tomography. Credit Philipps-Universität Marburg / Till Schürmann Usage Restrictions The image may only be used with appropriate credit and in connection with reporting on this specific research work. 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.