Abstract
The nonlinear interaction of matter with strong, oscillating electric fields has attracted considerable attention from the perspective of fundamental physics and technological applications such as electro-optic devices. One of the most remarkable electric field effects of dielectric materials under a static electric field is the Franz-Keldysh effect (FKE). The theoretical extension of the FKE to time-dependent electric fields can be described as a non-perturbative effect, i.e., the dynamical FKE (DFKE). Intensive experimental studies have been performed with narrow-band THz pulses from free-electron lasers and have shown a blueshift in the excitonic absorption peak caused by the DFKE [1,2]. On the other hand, recent advances in Ti: sapphire-based THz laser systems generating phase-stable transients with a femtosecond timing accuracy may give us complementary information on the fundamental characteristics of the DFKE [2-4], which cannot be obtained with time-averaged measurements.
© 2015 Japan Society of Applied Physics, Optical Society of America
PDF ArticleMore Like This
T. Otobe, K. Yabana, Y. Shinohara, S. A. Sato, and G. F. Bertsch
CG_P_14 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2015
S. Hughes and D. S. Citrin
RMD7 Radiative Processes and Dephasing in Semiconductors (RPDS) 1998
M. Lucchini, S. A. Sato, J. Herrmann, A. Ludwig, M. Volkov, L. Kasmi, Y. Shinohara, K. Yabana, L. Gallmann, and U. Keller
JTh4A.8 CLEO: Applications and Technology (CLEO:A&T) 2016