Title :
Coherent control of ultrafast photocurrents using polarization-shaped optical pulses
Author :
Priyadarshi, Shekhar ; Pierz, Klaus ; Bieler, Mark
Author_Institution :
Phys.-Tech. Bundesanstalt, Braunschweig, Germany
Abstract :
We demonstrate all-optically induced real-space charge transfer in semiconductors, which reverses its direction upon a change of the temporal order of two excitation fields. Such charge transfer leads to a new type of photocurrent and only appears for certain polarization-shaped optical pulses while it ceases for continuous-wave excitation.
Keywords :
III-V semiconductors; charge exchange; gallium arsenide; high-speed optical techniques; light polarisation; optical control; photoconductivity; GaAs; all-optically induced real-space charge transfer; continuous-wave excitation; excitation fields; polarization-shaped optical pulses; ultrafast photocurrents; Integrated optics; Nonlinear optics; Optical polarization; Optical pulses; Photoconductivity; Temperature measurement; Ultrafast optics;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665896
