Femtosecond luminescence measurements combined with pump-probe experiments using selective excitation of either free carriers or excitons have been performed. The time-resolved luminescence spectra show a striking disparity compared with recently published theoretical models. Large differences in the pump-probe spectra are observed for resonant and non-resonant (continuum) pumping. The origin of these differences is discussed.
Title
Is luminescence from quantum wells due to excitons?
Published in
Physica Status Solidi a-Applied Research
Volume
190
Issue
3
Pages
637-640
Date
2002
ISSN
0031-8965
Note
EPFL, Dept Phys, Swiss Fed Inst Technol, IMO, Lausanne, Switzerland. Hayes, GR, EPFL, Dept Phys, Swiss Fed Inst Technol, IMO, Lausanne, Switzerland.
ISI Document Delivery No.: 553CB
Cited Reference Count: 4
Cited References:
KIRA M, 1998, PHYS REV LETT, V81, P3263
OESTREICH M, 2000, PHYS STATUS SOLIDI A, V178, P27
PIERMAROCCHI C, 1996, PHYS REV B, V53, P15834
SIEH C, 1999, PHYS REV LETT, V82, P3112
Record creation date
2007-08-31