To implement our research on quantum materials and devices, we have
1) 2D material preparation laboratory is designated for 2D material exfoliation, heterostructure fabrication, and device processing.
2) Multimodal characterization laboratory hosts ultrafast lasers, CW light sources, magneto-optical cryostats, spectral analysis facilities, DC to RF quantum transport, and in-situ cryogenic strain cells. Such a unique multimodal characterization platform integrates broadband/ultrafast optical spectroscopy/microscopy with quantum transport measurements under multiple in-situ control (strain, magnetic field, temperature, electrostatic gating), supporting spatial, time and energy-resolved measurements of ferroelectricity, magnetism, topology and electron correlation simultaneously. In particular, the broadband spectroscopic range from THz to UV is enabled by our two ultrafast laser systems, one CW laser source, and parametric frequency conversion optics.
1) 2D material preparation laboratory
A nitrogen-filled glovebox with O2 and H2O levels below 0.01 ppm (Vacuum Technology-Universal) coupled with a home-built transfer station to assemble air- or water-sensitive heterostructures; another transfer station is in ambient condition to assemble air-stable heterostructures. Both transferring systems contain all the required elements for the fabrication of high-quality 2D heterostructures and devices: a high-resolution optical microscope with a CCD camera, and motorized stages (x,y,z, and rotational degree)with MATLAB control. Thermoelectric heating/cooling units to control substrate temperature are used to support the dry transfer process via polymer stamps. The lab further supports a standard pre- and post-processing platform for electronic devices, including hot plates, spin coater, deionized water, sonicator, and oven in a fume hood dedicated to acid/base cleaning and wet etching.
2) Multimodal characterization laboratory
Characterization Techniques:
- SHG/MOKE/optical pump-probe
- Magneto-Raman/PL spectroscopy
- THz emission/transmission
- 800 nm/THz-pump, THz/800 nm probe, MOKE, SHG
- THz photocurrent spectroscopy and THz sensing device test
- Nano opto-mechanics, RF to optical quantum transduction
- DC to RF quantum transport
To support our quantum materials and devices research, we have
1) 2D material preparation laboratory is designated for 2D material exfoliation, heterostructure fabrication, and device processing.
2) Multimodal characterization laboratory hosts ultrafast light sources, CW light sources, magneto-optical cryostats, spectral analysis facilities, DC to RF quantum transport, and in-situ cryogenic strain cells. Such a unique multimodal characterization platform integrating broadband/ultrafast optical spectroscopy/microscopy with quantum transport measurements under multiple in-situ control (strain, temperature, magnetic field, and electrostatic gating), supporting spatial, time, and energy-resolved measurements of ferroelectricity, magnetism, and electron correlation simultaneously. In particular, the broadband spectroscopic range from THz to UV is enabled by our two ultrafast laser systems, one CW laser source, and parametric frequency conversion optics.