Title :
THz radiation from magneto-optically induced ultrafast photocurrents in bulk GaAs
Author :
Schmidt, Christian B. ; Priyadarshi, Shekhar ; Bieler, Mark
Author_Institution :
Phys.-Tech. Bunsanstalt, Braunschweig, Germany
Abstract :
We study THz emission from magneto-optically induced ultrafast photocurrents in a GaAs crystal. Analyzing currents appearing in the direction of the externally applied magnetic field, we observe different current dynamics for linearly- and circularly-polarized excitation.
Keywords :
III-V semiconductors; gallium arsenide; magneto-optical effects; photoconductivity; photoemission; terahertz waves; wide band gap semiconductors; GaAs; GaAs crystal; bulk GaAs; circularly-polarized excitation; current dynamics; externally applied magnetic field direction; linearly-polarized excitation; magnetooptically induced ultrafast photocurrents; terahertz emission; terahertz radiation; Crystals; Gallium arsenide; Magnetic field measurement; Magnetic separation; Magnetoelectric effects; Optical pulses;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665530
