Application of Ultrafast Spectroscopy in Materials Science
Department of Materials Science and Engineering,
Idaho National Laboratory
Understanding of nonequilibrium dynamics in solid state is important for development of optical radiation detectors. Ultrashort 100-fs-wide-pulse is used as a pump to excite a nonequilibrium state and second time delayed pulse is used to probe system’s state. This pump-probe approach allows one to study the dynamical evolution of the system with 100-fs-resolution. In this presentation, ultrafast processes in semiconductors, superconductors, and low dimensional systems related to optoelectronic and photovoltaic applications will be reviewed. An example of how similar approach can be used to measure thermal transport will be presented as well.