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Our research is centered on the study of quantum materials, most notably strongly correlated electron systems such as cuprate and iron-based high-temperature superconductors. Other materials of interest are spin–orbit coupled systems with non-trivial topological properties, and materials in extreme 2D and 1D limits. We study these systems by probing their interactions with electromagnetic radiation, ranging from x-rays to the ultraviolet, and into the microwave regime. 

We develop experimental tools for our studies. Our primary experimental tool is angle-resolved photoemission spectroscopy (ARPES) and its time- and spin-resolved variants. We also perform experiments using resonant x-ray scattering and microwave impedance microscopy (MIM) techniques. We help maintain two experimental endstations (Beamline 5-4 & Beamline 5-2) at the Stanford Synchrotron Radiation Lightsource (SSRL), one endstation (Beamline 10.0.1) at the Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory (LBNL), near the University of California, Berkeley.