Non-equilibrium dynamics in solids probed by terahertz fields
(B08#)
Subject Area
Experimental Condensed Matter Physics
Term
from 2018 to 2020
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 278162697
In this project we will use ultrafast terahertz (THz) spectroscopy to study the non-equilibrium dynamics of electrons and the lattice in solids. Ultrafast THz spectroscopy is a femtosecond-laser based, all-optical method, ideally suited to probe the conductivity of materials, including its ultrafast dynamics. In the first funding period we will concentrate on the two key topics of the electric conductivity dynamics. 1) Photoexcited pnictogen metals Bi, Sb and As undergoing the ultrafast photoinduced structural phase transition; 2) Sub-100 fs dynamics of hot electron population in graphene, undergoing the primary thermalization process; and the effect of direct lattice excitation of graphene on its conductivity.
DFG Programme
Collaborative Research Centres
Major Instrumentation
Linear fiber laser
