Principal Investigator Long Ju
Project Website https://sites.google.com/site/julongsite/home
Research in Long Ju's group in the physics department at MIT focuses on understanding light-matter interactions in novel quantum materials. Of particular interest are atomically thin materials and van der Waals hetero-structures of them. These materials host a variety of fascinating electronic and optical properties individually, and they offer exciting opportunities to explore possibilities enabled by controlling the stacking order and electrically tuning the band structure and charge doping. Especially, such materials provides a new platform to design and engineer more exotic quantum phenomena when electron correlations and topology are included.
We develop problem-oriented experiments by employing various optical spectroscopy and microscopy tools in a broad spectrum range from UV to THz. These include(but 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.