Laser Source Development
For time resolved studies at LCLS, a typical experimental setup is a pump-probe configuration. In this setup an optical laser pulse excites the sample, followed by an x-ray pulse that probes the state of the sample after a controllable delay time.
The main goal of the UV project is to explore the most efficient schemes to generate sub-10 femtosecond (fs) deep and vacuum ultraviolet (DUV and VUV) pulses in order to provide a new pump laser source for LCLS experiments. These ultrashort pulses with central wavelengths of <200 nm will be used to investigate the dynamics of organic molecules such as Furan (C4H4O) on the shortest time scales.
This UV project is crucial in furthering state-of-the-art optical laser sources for future user experiments at LCLS and LCLS II.
Our group conducts R&D in ultrafast laser sources spanning a large range of wavelengths, from terahertz to the extreme ultraviolet. Our sources enable pump-and-probe studies in ultrafast dynamic processes at LCLS, such as femtosecond biological, condensed matter, and chemical physics, among many others. These sources are based on chirp-pulse amplification, optical pulse synthesis, and frequency conversion in non-linear media. We also serve SLAC and other DOE labs with the development of novel sources to control charged-particle bunches. Principal areas of research include non-linear few-cycle sources, relativistic intensity sources, and non-conventional polarization laser beams.