Title :
Terahertz nonlinear optics of excitons in semiconductor quantum wells
Author :
Wagner, M. ; Stehr, D. ; Schneider, H. ; Winnerl, S. ; Helm, M.
Author_Institution :
Inst. of Ion Beam Phys. & Mater. Res., Forschungszentrum Dresden-Rossendorf, Dresden, Germany
Abstract :
We report the investigation of two nonlinear optical phenomena which are related to intra-excitonic transitions in semiconductor quantum wells and thus occur in the THz range. This is, on one hand, the generation of THz sidebands of near-band gap radiation, a perturbative process, and on the other hand, the AC Stark effect manifested by the Autler-Townes splitting as a non-perturbative effect. Both phenomena are induced by the strong THz field of the Dresden THz free-electron laser.
Keywords :
Stark effect; excitons; semiconductor quantum wells; terahertz wave spectra; AC Stark effect; Autler-Townes splitting; Dresden terahertz free-electron laser; intraexcitonic transitions; near-band gap radiation; nonlinear optical phenomena; nonperturbative effect; perturbative process; semiconductor quantum wells; terahertz field; terahertz nonlinear optics; terahertz sideband generation; Amplitude modulation; Excitons; Free electron lasers; Laser excitation; Laser tuning; Photonics; Stark effect;
Conference_Titel :
ICECom, 2010 Conference Proceedings
Conference_Location :
Dubrovnik
Print_ISBN :
978-1-61284-998-0
