Open AccessDifference in the behavior of the photon echo of excitons in InGaAs/GaAs quantum wells from the predictions of the model of two-level system ensemble
Author(s) -
I. I. Yanibekov,
I. A. Solovev,
S. A. Eliseev,
Yu. P. Efimov,
V. A. Lovtcius,
Yu. V. Kapitonov
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1482/1/012020
Subject(s) - dephasing , echo (communications protocol) , photon , exciton , amplitude , excitation , physics , quantum well , condensed matter physics , atomic physics , optics , quantum mechanics , laser , computer network , computer science
In this work, we studied the photon echo from heavy-hole excitons in a thin InGaAs/GaAs quantum well. To analyze the results, we used the model of an ensemble of two-level systems. The model allows us to describe the temporal profile and the moment of arrival of the echo signal, as well as the echo amplitude decay with increasing delay between pulses. In addition, excitation-induced dephasing effect was observed, that was beyond the limits of applicability of the model.