Title :
Influence of excitonic effects on two-color injection of ballistic electrical currents in a bulk semiconductor
Author :
SameS, Christian ; Ménard, Jean-Michel ; Betz, Markus ; Van Driel, Henry M.
Author_Institution :
Dept. of Phys., Toronto Univ., Toronto, ON
Abstract :
Currents in CdSe are coherently controlled using phase-related omega/2omega femtosecond pulses at 80 K. For carrier excitation just above the exciton energy, CdSe reveals an additional delayed and phase-shifted source term via the THz emission.
Keywords :
cadmium compounds; excitons; high-speed optical techniques; nonlinear optics; optical phase shifters; CdSe; additional delayed; ballistic electrical currents; bulk semiconductor; carrier excitation; exciton energy; excitonic effects; phase shifted source; temperature 80 K; terahertz emission; two color injection; Excitons; Indium phosphide; Interference; Nonlinear optics; Optical control; Optical pulse generation; Photonic band gap; Pulse amplifiers; Stimulated emission; Ultrafast optics; (190.5970) Semiconductor nonlinear optics including MQW; (320.7130) Ultrafast processes in condensed matter, including semiconductors;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
