Title :
Magneto-optically induced currents in GaAs: Experimental access to subpicosecond k-space carrier dynamics
Author :
Schmidt, Christian B. ; Priyadarshi, Shekhar ; Bieler, Mark
Author_Institution :
Phys.-Tech. Bundesanstalt, Braunschweig, Germany
Abstract :
We study THz radiation from magneto-optically induced ultrafast currents in GaAs. Magnetic field and excitation intensity are found to have a distinct influence on the shape of the THz traces. The results suggest that these currents are an appropriate tool to investigate k-space carrier dynamics in semiconductors.
Keywords :
III-V semiconductors; elemental semiconductors; gallium arsenide; magnetic fields; magneto-optical devices; excitation intensity; gallium arsenide; magnetic field; magneto-optically induced ultrafast currents; subpicosecond k-space carrier dynamics; terahertz radiation; Current measurement; Gallium arsenide; Magnetic fields; Optical polarization; Optical pulses; Optical pumping; Ultrafast optics;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956036
