TY - JOUR
T1 - Terahertz dynamics of excitons in GaAs/AlGaAs quantum wells
AU - Černe,
AU - Kono, J.
AU - Sherwin, M. S.
AU - Sundaram, M.
AU - Gossard, A. C.
AU - Bauer, G. E.W.
PY - 1996
Y1 - 1996
N2 - By monitoring changes in excitonic photoluminescence that are induced by far-infrared (FIR) radiation, we observed resonant FIR absorption by magnetoexcitons in GaAs/AlGaAs quantum wells. The dominant resonance is assigned to the 1s→2p+ transition of the heavy-hole exciton, and agrees well with theory. At low FIR and interband excitation intensities, the 1s→2p+ absorption feature is very narrow and broadens as either of these intensities is increased. The 1s→2p+ absorption feature persists even when the FIR electric field is comparable to the electric field which binds the exciton.
AB - By monitoring changes in excitonic photoluminescence that are induced by far-infrared (FIR) radiation, we observed resonant FIR absorption by magnetoexcitons in GaAs/AlGaAs quantum wells. The dominant resonance is assigned to the 1s→2p+ transition of the heavy-hole exciton, and agrees well with theory. At low FIR and interband excitation intensities, the 1s→2p+ absorption feature is very narrow and broadens as either of these intensities is increased. The 1s→2p+ absorption feature persists even when the FIR electric field is comparable to the electric field which binds the exciton.
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U2 - 10.1103/PhysRevLett.77.1131
DO - 10.1103/PhysRevLett.77.1131
M3 - Article
AN - SCOPUS:0039836675
SN - 0031-9007
VL - 77
SP - 1131
EP - 1134
JO - Physical Review Letters
JF - Physical Review Letters
IS - 6
ER -