Photon echo transients from an inhomogeneous ensemble of semiconductor quantum dots

Abstract

An ensemble of quantum dot excitons may be used for coherent information manipulation. Due to the ensemble inhomogeneity any optical information retrieval occurs in form of a photon echo. We show that the inhomogeneity can lead to a significant deviation from the conventional echo timing sequence. Variation of the area of the initial rotation pulse, which generates excitons in a dot sub-ensemble only, reveals this complex picture of photon echo formation. We observe a retarded echo for π/2 pulses, while for 3π/2 the echo is advanced in time as evidenced through monitoring the Rabi oscillations in the time-resolved photon echo amplitude from (In,Ga)As/GaAs self-assembled quantum dot structures and confirmed by detailed calculations.

15 pages, 4 figures

References in corpus (2)

• Ultrafast optical control of entanglement between two quantum dot spins
• Phonon induced Rabi frequency renormalization of optically driven single InGaAs/GaAs quantum dots

Cited by in corpus (13)

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• Photon echoes from (In,Ga)As quantum dots embedded in a Tamm-plasmon microcavity
• Damping of Rabi oscillations in intensity-dependent photon echoes from exciton complexes in a CdTe/(Cd,Mg)Te single quantum well
• Exploring coherence of individual excitons in InAs quantum dots embedded in natural photonic defects: influence of the excitation intensity
• Strong enhancement of heavy-hole Landé factor $q$ in InGaAs symmetric quantum dots revealed by coherent optical spectroscopy
• Photon echo polarimetry of excitons and biexcitons in a CH${}_3$NH${}_3$PbI${}_3$ perovskite single crystal
• Destructive photon echo formation in six-wave mixing signals of a MoSe${}_2$ monolayer
• Ramsey fringes in a room temperature quantum dot semiconductor optical amplifier
• Long-living dark coherence brought to light by magnetic-field controlled photon echo
• Multiple Rabi rotations of trions in InGaAs quantum dots observed by photon echo spectroscopy with spatially shaped laser pulses
• Coherent Nonlinear Optical Response for High-Intensity Excitation
• Accurate photon echo timing by optical freezing of exciton dephasing and rephasing in quantum dots
• Quantum beats of exciton-polarons in CsPbI3 perovskite nanocrystals