TY - JOUR
T1 - Photo-induced Faraday rotation in GaAs/AlGaAs multiple quantum wells
AU - Kuroda, T.
AU - Hashimoto, Y.
AU - Minami, F.
N1 - Funding Information:
We would like to thank Y. Mitsumori for performing the four-wave mixing measurements in the present sample. This work was supported by Grant-in-Aid for Scientific Reseach from the Ministry of Education, Science and Culture of Japan.
PY - 2001/12
Y1 - 2001/12
N2 - The polarization rotation induced by the light pulse excitation is investigated on GaAs heterostructures. The temporal profile of the rotation angle shows an exponential decay reflecting the spin relaxation of excitons. The spectrally resolved transients exhibit not only the magnitude but the direction of the polarization rotation varies with the detection energy. The spectral features are in quantitative agreement with a calculation, where the saturation, the energy shift and the damping of the spin-polarized exciton resonance are taken into account.
AB - The polarization rotation induced by the light pulse excitation is investigated on GaAs heterostructures. The temporal profile of the rotation angle shows an exponential decay reflecting the spin relaxation of excitons. The spectrally resolved transients exhibit not only the magnitude but the direction of the polarization rotation varies with the detection energy. The spectral features are in quantitative agreement with a calculation, where the saturation, the energy shift and the damping of the spin-polarized exciton resonance are taken into account.
KW - GaAs
KW - Photo-induced Faraday rotation
KW - Quantum wells
KW - Spin relaxation
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U2 - 10.1016/S0022-2313(01)00384-2
DO - 10.1016/S0022-2313(01)00384-2
M3 - Article
AN - SCOPUS:0035702387
VL - 94-95
SP - 551
EP - 554
JO - Journal of Luminescence
JF - Journal of Luminescence
SN - 0022-2313
ER -