Femtosecond spectroscopy (IMAGE) Forschungszentrum Juelich Caption The scientists tracked the orbital tomograms with ultrahigh resolution through time. For this purpose, the electrons in the molecules were excited into a different orbital with femtosecond laser pulses. 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.