Title :
Terahertz coherent control of the internal quantum state of dark excitons in Cu2O
Author :
Leinss, Silvan ; Kampfrath, T. ; von Volkmann, K. ; Wolf, M. ; Frohlich, D. ; Leitenstorfer, A. ; Huber, R.
Author_Institution :
Dept. of Phys., Konstanz Univ., Konstanz
Abstract :
Intense multi-terahertz fields of order MV/cm coherently promote 70% of the quasiparticles of an optically dark, dense, and cold 1s-para exciton gas in Cu2O into the 2p state via a partial internal Rabi oscillation. Electro-optic sampling monitors the Larmor precession of the Bloch vector in real time.
Keywords :
copper compounds; electro-optical effects; excitons; high-speed optical techniques; quantum optics; quasiparticles; Bloch vector; Cu2O; Larmor precession; Rabi oscillation; dark excitons; electrooptic sampling; intense multiterahertz fields; internal quantum state; quasiparticles; terahertz coherent control; Atom optics; Delay; Electromagnetic wave absorption; Electron optics; Excitons; Optical control; Optical pumping; Polarization; Resonance; Ultrafast optics; (270.1670) Quantum optics; (320.7130) Ultrafast optics;
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
