Photoluminescence spectroscopy of the molecular biexciton in vertically stacked InAs-GaAs quantum dot pairs.
We present photoluminescence studies of the molecular neutral biexciton-exciton spectra of individual vertically stacked InAs/GaAs quantum dot pairs. We tune either the hole or the electron levels of the two dots into tunneling resonances. The spectra are described well within a few-level, few-particle molecular model. Their properties can be modified broadly by an electric field and by structural design, which makes them highly attractive for controlling nonlinear optical properties.
Scheibner
M
M
Naval Research Laboratory, Washington, DC 20375, USA. scheibner@bloch.nrl.navy.mil
Ponomarev
I V
IV
Stinaff
E A
EA
Doty
M F
MF
Bracker
A S
AS
Hellberg
C S
CS
Reinecke
T L
TL
Gammon
D
D