Title :
Terahertz intra-exciton transitions: new views of ultrafast exciton dynamics
Author :
Kaindl, R.A. ; Carnahan, M.A. ; Hagele, D. ; Lovenich, R. ; Chemla, D.S.
Author_Institution :
Dept. of Phys., California Univ., Berkeley, CA, USA
Abstract :
We discuss experiments that resolve the time evolution of exciton populations by sensing transitions between the exciton´s internal levels. The dynamical interplay of optically-induced excitons and unbound electron-hole pairs is investigated under various initial conditions.
Keywords :
excitons; high-speed optical techniques; infrared spectra; semiconductor quantum wells; submillimetre wave spectra; optically-induced excitons; terahertz intraexciton transitions; ultrafast exciton dynamics; unbound electron-hole pairs; Absorption; Excitons; Gallium arsenide; Optical pumping; Optical refraction; Optical sensors; Optical variables control; Pulse amplifiers; Refractive index; Ultrafast optics;
Conference_Titel :
Quantum Electronics and Laser Science, 2003. QELS. Postconference Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-749-0
DOI :
10.1109/QELS.2003.238388
