Title :
Excitonic signatures in photoluminescence and terahertz absorption
Author :
Chari, Ranga ; Galbraith, I. ; Phillips, Jacob ; Pellegrini, Sara ; Dent, C.J. ; Kar, Ajoy K. ; Buller, Gerald S. ; Pidgeon, C.R. ; Clarke, D.G. ; Murdin, B.N. ; van der Meer, A.F.G. ; Strasser, G.
Author_Institution :
Dept. of Phys., Heriot-Watt Univ., Edinburgh, UK
Abstract :
By measuring THz absorption and time-resolved photoluminescence on the same GaAs quantum well sample we confirm the recent prediction of Kira that PL at the exciton frequency does not require a population of bound excitons.
Keywords :
III-V semiconductors; excitons; gallium arsenide; infrared spectra; photoluminescence; submillimetre wave spectra; time resolved spectra; GaAs; GaAs quantum well; THz absorption; bound excitons; excitonic signatures; terahertz absorption; time-resolved photoluminescence; Absorption; Delay; Excitons; Free electron lasers; Frequency measurement; Nonlinear optics; Photoluminescence; Plasma measurements; Quantum well lasers; Time measurement;
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.2003.238399
