Title :
Coulomb-enhanced shift currents from symmetry reduction in GaAs/AlGaAs quantum wells
Author :
Bieler, Mark ; Pierz, Klaus ; Dawson, Philip ; Siegner, Uwe
Author_Institution :
Physikalisch-Technische Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany
Abstract :
We report a new shift current tensor element resulting from symmetry reduction in semiconductor quantum wells, The shift current is strongly enhanced by Coulomb interaction and shows a pronounced maximum at the light-hole exciton resonance.
Keywords :
Excitons; Gallium arsenide; Laser excitation; Nonlinear optics; Optical polarization; Optical pumping; Photoluminescence; Resonance; Tensile stress; Ultrafast optics;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/QELS.2007.4431574
