We do basic experimental research in the field of surface and interface science. Our investigations focus on optical excitations, electron transfer processes and vibrational properties of solid surfaces and internal interfaces. Our main methods are ultrafast laser spectroscopy, time-resolved photoemission, scanning tunnelling microscopy and infrared spectroscopy. Our experiments on well-defined monocrystalline metal and semiconductor samples are usually carried out in ultra-high vacuum. In recent years, the
Ultrafast birth, rise, and collapse of a Floquet-Bloch band structure Suguru Ito and coworkers reveal that under strong periodic driving Floquet replica of electronic surface bands form already after one optical cycle. New material properties, at lightning speed and on demand – this vision moves a step closer thanks to these findings. […]
Science Slam Winner Sarah Zajusch wins Science Slam in Cologne with a contribution on Two-Photon Photoemission from 2D semiconductors […]