We develop problem-oriented experiments by combining nano-fabrication and milli-Kelvin magneto-transport with various optical spectroscopy and microscopy tools in a broad spectrum range from UV to THz. These include (but are not limited to)
Ultrafast optical techniques to study dynamical properties of charge and lattice on a femtosecond time scale.
Scanning probe infrared nanoscopy with a spatial resolution of nanometers.
Very importantly, device fabrication and application of electric and magnetic fields, as well as cryogenic temperature will be combined to achieve external control of material properties.