UCSB Sherwin Group
Driven quantum and biological matter
Our Research
Located at the Institute for Terahertz Science and Technology (ITST) at UC Santa Barbara, the Sherwin Group uses terahertz (THz) light to probe nonequilibrium properties of condensed matter systems and to capture the functional dynamics of biological molecules. By combining powerful radiation sources with high-field spin spectroscopy, we access the unique spectroscopic window of sub-mm/THz light, enabling direct measurements of both quantum excitations in materials and nanoscale motion in biomolecules.
The UCSB Free Electron Laser
Built in the 1980s, the UCSB Free Electron Laser (UCSB-FEL) is the first terahertz free-electron laser in the world and has delivered kilowatts of narrowband, frequency-tunable terahertz radiation for over 40 years. The laser beam is generated by accelerating electrons to greater than 99% of the speed of light and directing them through a magnetic undulator, where coherent terahertz light is produced by rocking the electrons back and forth. The laser light builds up within an optical cavity and is subsequently delivered to surrounding laboratory spaces for experimental use.
Research Highlights
