Citation
E. Finger et al., Coherent excitation spectroscopy of disordered quantum-well structures, PHYS ST S-B, 221(1), 2000, pp. 373-378
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI B-BASIC RESEARCH
ISSN journal
03701972
→ ACNP
Volume
221
Issue
1
Year of publication
2000
Pages
373 - 378
Database
ISI
SICI code
0370-1972(200009)221:1<373:CESODQ>2.0.ZU;2-1
Abstract
We study semiconductor quantum-well samples with different disorder strengt
hs by coherent excitation spectroscopy with particular emphasis on disorder
-mediated couplings of exciton subensembles. Our experiments show that ther
e is no coherent coupling of excitons in different quantum islands and in a
strongly inhomogeneously broadened sample. Latest results with polarizatio
n-resolved coherent excitation spectroscopy indicate a disorder-induced dep
hasing of biexcitons in the inhomogeneously broadened sample.