Quantum beats of light-hole and heavy-hole excitons in reflection spectra of GaAs/AlGaAs quantum well
A. V. MikhailovSpin Optics Laboratory, Saint Petersburg State University, St. Petersburg, RussiaА. В. ТрифоновSpin Optics Laboratory, Saint Petersburg State University, St. Petersburg, RussiaO. S. SultanovSpin Optics Laboratory, Saint Petersburg State University, St. Petersburg, RussiaYugova I. Yu.Spin Optics Laboratory, Saint Petersburg State University, St. Petersburg, RussiaI. V. IgnatĭevSpin Optics Laboratory, Saint Petersburg State University, St. Petersburg, Russia
2022en
ABI
Annotatsiya
In this work we experimentally study dynamics of the heavy-hole and light-hole exciton states in a quantum well under coherent excitation of both excitonic resonances using co- and cross-linear and circular polarizations of pump and probe beams. Oscillations of basic parameters of excitonic resonances are observed. Their dependence on the polarization of the pump and probe beams is used to determine the structure of states of the heavy-hole and light-hole excitons by means of theoretical modelling of experimental data. Keywords: quantum well, excitons, quantum beats, light-hole exciton, heavy-hole exciton.
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