TY - JOUR
T1 - Density dependent coupling of negatively charged excitons with confined photons in a GaAs/AlAs microcavity
AU - Rapaport, R.
AU - Harel, R.
AU - Cohen, E.
AU - Ron, Arza
AU - Linder, E.
AU - Pfeiffer, L. N.
PY - 2000/3
Y1 - 2000/3
N2 - The negatively charged exciton (X-) is observed to strongly couple with the microcavity (MC)-confined photons in a GaAs quantum well containing a two-dimensional electron gas with 0e≤3×1010 cm-2. This strong coupling results in the formation of charged polaritons. The coupling strength is found to depend on √ne, in analogy to two-level atoms in a cavity. A model is suggested to explain this dependence. The analysis of the reflection and photoluminescence spectra shows that X- is strongly admixed with the neutral exciton (X) via their coupling with the MC-photons. The linewidth dependence on ne indicates that electron-polariton scattering is effective.
AB - The negatively charged exciton (X-) is observed to strongly couple with the microcavity (MC)-confined photons in a GaAs quantum well containing a two-dimensional electron gas with 0e≤3×1010 cm-2. This strong coupling results in the formation of charged polaritons. The coupling strength is found to depend on √ne, in analogy to two-level atoms in a cavity. A model is suggested to explain this dependence. The analysis of the reflection and photoluminescence spectra shows that X- is strongly admixed with the neutral exciton (X) via their coupling with the MC-photons. The linewidth dependence on ne indicates that electron-polariton scattering is effective.
UR - http://www.scopus.com/inward/record.url?scp=0033748463&partnerID=8YFLogxK
U2 - 10.1002/1521-396X(200003)178:1<481::AID-PSSA481>3.0.CO;2-M
DO - 10.1002/1521-396X(200003)178:1<481::AID-PSSA481>3.0.CO;2-M
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AN - SCOPUS:0033748463
SN - 0031-8965
VL - 178
SP - 481
EP - 487
JO - Physica Status Solidi (A) Applied Research
JF - Physica Status Solidi (A) Applied Research
IS - 1
T2 - Optics of Excitons in Confined Systems (OECS-6)
Y2 - 30 August 1999 through 2 September 1999
ER -