Publication Date:
2006
abstract:
The dynamics of excitons in a GaAs quantum well in the presence of an electron gas is investigated by
time resolved photoluminescence (PL). We prove that the emission at the exciton energy originates from a
real exciton population for all time delays. Moreover we show that injecting a low density electron gas
strongly accelerates the exciton dynamics, by increasing the exciton formation rate.
time resolved photoluminescence (PL). We prove that the emission at the exciton energy originates from a
real exciton population for all time delays. Moreover we show that injecting a low density electron gas
strongly accelerates the exciton dynamics, by increasing the exciton formation rate.
Iris type:
1.1 Articolo in rivista
Keywords:
Spettroscopia ultraveloce; eccitoni; gas di elettroni bidimensionale (Ultrafast Spectroscopy; excitons; electron gas)
List of contributors:
Bajoni, Daniele; Senellart, P; Perrin, M; Lemaitre, A; Sermage, B; Bloch, J.
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