Title :
Steerable emission of THz radiation by optical coherent control
Author :
Fuser, Heiko ; Bieler, Mark
Author_Institution :
Phys.-Tech. Bundesanstalt, Braunschweig, Germany
Abstract :
We report optical coherent control of the emission direction of THz radiation by excitation of bulk GaAs with femtosecond laser pulses. Changing the phase of the optical excitation, steering angles of ~8 degrees are realized. A simple model is introduced to analyze the underlying parameters.
Keywords :
III-V semiconductors; beam steering; gallium arsenide; high-speed optical techniques; optical control; terahertz wave detectors; terahertz wave generation; THz radiation emission direction; bulk gallium arsenide excitation; femtosecond laser pulses; optical coherent control; optical excitation phase; steerable THz radiation emission; steering angles; Crystals; Gallium arsenide; Laser excitation; Nonlinear optics; Optical polarization; Optical pulses; Ultrafast optics;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665511
