Monday, February 29, 2016
Abstract-Inter-sublevel dynamics in single InAs/GaAs quantum dots induced by strong terahertz excitation
We combine with terahertz excitation to investigate the response of single InAs/GaAs to intense terahertz pulses tuned to the s-to-p transition. Spectra and transients of single lines reveal the dynamics of electrons upon excitation and subsequent relaxation back into the initial state. Under certain circumstances, the terahertz pulse can release trapped charge carriers, which relax into the Furthermore, we demonstrate near-total depletion of the positive by an intense terahertz pulse.