We use an amplified Ti:Sapphire Legend laser system to probe the electronic and phononic properties of semiconductors and graphene based systems. With a time averaged power of 3 W, produced in over one thousand ultrafast (100 fs) pulses per second, a range of time-resolved experiments are possible._ THz time domain spectroscopy is used in both collimating and focusing configurations to probe materials at low energies (approximately 4meV). Temperature controlled samples can be used within these time resolved measurements and the THz generation dynamics of different materials can also be measured. Time resolved (pump-probe) measurements are performed at visible and near-infrared frequencies, with bespoke chambers for in-situ measurements in ambient, vacuum or inert gas environments.
Hosted by: Physics and Astronomy, University of Exeter.