We have extensive ultrafast capabilities that span the visible, mid-infrared, and terahertz regions of the electromagnetic spectrum. We use commercial lasers, but all of the experiments are home built to enable novel studies of quantum materials, metamaterials, and plasmonic structures. We have two 1KHz regenerative amplifiers and a 200KHz Spirit regenerative amplifier, providing substantial flexibility in the experiments we can perform. Our experiments can be performed from 4K to above room temperature, and we have recently incorporated a Quantum Design OptiCool 7T magnet into our laboratory. We also have several OPAs, NOPAs, etc. to enhance our mode-selective excitation capabilities.
A few of our current experimental capabilities:
Optical to mid-IR pump, THz probe in reflectivity for single crystal measurements
Plasma based THz probe (0.5 - 20 THz) with visible to 2.4 micron pump
High sensitivity pump-probe spectroscopy in magnetic field
Photoconductive THz-TDS (transmission and reflection)
Some of our materials of current interest: Mott-Hubbard Insulators, Cuprates, Iridates, Vanadates, and many more!
We also collaborate with colleagues on various other experiments including apertureless near-field optical measurements of quantum materials, and x-ray measurements at Argonne National Laboratory Advanced Photon Source and, on occasion, ultrafast x-ray measurements at the Stanford/SLAC LCLS.
2016 UC San Diego Averitt Lab Created and Managed by Samantha Averitt