11-eV laser system for high-resolution photoelectron spectroscopy

点击翻译按钮获取中文摘要

An extreme ultraviolet laser is requested for the investigation of the electronic structure of novel quantum materials and the development of new spectroscopic methods.The table-top high-brilliance high-resolution 11-eV laser shall(i) enable laboratory-based high-resolution angle-resolved photoelectron spectroscopy with variable polarization and a micron-scale beam spot for cutting-edge electronic structure studies of novel transition-metal dichalcogenide systems including correlated and topological materials, systematically doped compounds, mono- and few-layer systems, and van der Waals heterostructures, as well as for the continuous characterization and optimization of chemical vapor transport-grown bulk transition-metal dichalcogenide crystals,(ii) complement synchrotron-based high-resolution angle-resolved photoelectron spectroscopy as well as free-electron laser- and high-harmonic generation-based time-and angle-resolved photoelectron spectroscopy studies and, in particular, increase the effectiveness and efficiency of these experiments by pre-screening and characterization of samples prior to beamtimes,(iii) provide a flexible laboratory-based angle-resolved photoelectron spectroscopy setup for the exploration of new measurement concepts, including, for example, methods for in situ sample growth and in situ electrical biasing, and(iv) make available a powerful laser light source for the development of new measurement methods, such as in operando spectroscopy of plasma-solid interfaces.