Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Physical Review B

Local field effects in excitonic population transfer in a driven quantum dot system

Emmanuel Paspalakis, Anastasia Kalini, Andreas Terzis

Published Feb 7, 2006• 73 citations
Publisher

Abstract

We study theoretically the influence of local fields in the excitonic population dynamics of a quantum dot system under the interaction with either CW or pulsed and appropriately chirped electromagnetic fields. Using a microscopic approach for the analysis of the system we present analytical and numerical results from the solution of the optical Bloch equations, with emphasis given to the effects of local fields in excitonic Rabi oscillations and to the conditions that could give rise to population inversion in the system.

DOI
10.1103/physrevb.73.073305

Related papers

Controlled excitonic population transfer in a quantum dot system interacting with an electromagnetic field: local field effects

Emmanuel Paspalakis, Andreas Terzis

We study the effects of local fields, due to electron-hole dipole-dipole interactions, on the excitonic population dynamics of an isolated quantum dot system under the interaction with either CW or pulsed and appropriately chirped electromagnetic fields. The analysis of the dynamics of the system is achieved by the analytical and numerical solution of the optical Bloch equations, under the rotating wave approximation. In the theoretical investigation of the system, emphasis is given to the effects of local fields in excitonic Rabi oscillations and to the conditions that give rise to population inversion in the system.

International Conference on Microelectronics•Mar 12, 2006•5 citations

Local field effects on population dynamics in a driven quantum dot system: general initial conditions§

Andreas Terzis, Emmanuel Paspalakis

The effects of local fields, due to electron–hole dipole–dipole interactions, on the excitonic population dynamics of a quantum dot system are studied. The system interacts resonantly with a continuous wave electromagnetic field. We present analytical solutions of the nonlinear optical Bloch equations for any initial condition. We also thoroughly investigate the dynamics of population inversion of the system and show that effects such as extended Rabi oscillations, self-trapping in the initial state and symmetry-breaking can occur.

Journal of Modern Optics•Sep 10, 2007•2 citations

The excitonic population transfer in an interacting charge-transfer exciton system

Ni Cui, Yueping Niu, Hui Sun +1 more

We investigate the effects of the coupling of charge-transfer excitons on the excitonic population dynamics of a charge-transfer exciton system coupled by either CW or pulsed chirped electromagnetic fields. Owing to the strong coupling, at exact resonance with the CW fields, there is a critical value of the Rabi frequency above which the excitonic Rabi oscillations with complete population transfer to the excited state could be achieved. For the pulsed chirped field, if the coupling is considered, it has also been shown that the excitonic population transfer can be obtained in a wide range of both negative and positive values of chirped rate.

Journal of Modern Optics•Oct 14, 2008•1 citation

Strong coupling between quantum dot and electromagnetic field: local field effects

Gregory Ya. Slepyan, A. Magyarov, С. А. Максименко +2 more

The influence of local fields on the excitonic Rabi oscillations in isolated, arbitrary shaped quantum dot (QD) has been theoretically investigated. Hamiltonian of the system "QD+electromagnetic field" has been obtained. Both QD interaction with classical electromagnetic field and ultrashort optical pulse has been considered. As a result, the bifurcation and anharmonism in the Rabi oscillations in a QD exposed to the monochromatic field have been predicted. The dependence of Rabi oscillations period on the QD depolarization parameter, which characterize local field has been obtained. It has been shown, that for the Gaussian pulse the final state of inversion as a function of peak pulse strength demonstrates step-like transitions.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Aug 2, 2004•0 citations

Rabi oscillations in a semiconductor quantum dot: Influence of local fields

Gregory Ya. Slepyan, A. Magyarov, С. А. Максименко +2 more

The influence of electron-hole dipole-dipole interactions (local fields) on the excitonic Rabi oscillations in an isolated quantum dot (QD) has been theoretically investigated. An analysis for the QD interaction with monochromatic field and ultrashort Gaussian pulse has been performed. On the basis of optical Bloch equations the Rabi oscillation dynamics has been investigated. As a result, the bifurcation and essentially anharmonic regimes in the Rabi oscillations in a QD exposed to the monochromatic field have been predicted. The strong dependence of the period of Rabi oscillations on the QD depolarization has been revealed. For the Gaussian pulse it has been shown that the final state of inversion as a function of the pulse peak strength demonstrates step-like transitions.

Physical Review B•Jul 29, 2004•53 citations

Strong light‐matter coupling in a quantum dot: local field effects

Gregory Ya. Slepyan, A. Magyarov, С. А. Максименко +2 more

Manifestation of local fields in excitonic Rabi oscillations in an isolated arbitrary shaped quantum dot (QD) has been theoretically investigated. Interaction of QD with harmonic electromagnetic field as well as with ultrashort optical pulse has been considered. Bifurcation and anharmonism in the Rabi oscillations in a QD are predicted. Step-like transitions of the inversion as a function of peak pulse strength are demonstrated to be observable in a QD exposed to a Gaussian pulse. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics•Feb 1, 2005•1 citation
We study theoretically the influence of local fields in the excitonic population dynamics of a quantum dot system under the interaction with either CW or pulsed and appropriately chirped electromagnetic fields. Using a microscopic approach for the analysis of the system we present analytical and numerical results from the solution of the optical Bloch equations, with emphasis given to the effects of local fields in excitonic Rabi oscillations and to the conditions that could give rise to population inversion in the system.
We study the effects of local fields, due to electron-hole dipole-dipole interactions, on the excitonic population dynamics of an isolated quantum dot system under the interaction with either CW or pulsed and appropriately chirped electromagnetic fields. The analysis of the dynamics of the system is achieved by the analytical and numerical solution of the optical Bloch equations, under the rotating wave approximation. In the theoretical investigation of the system, emphasis is given to the effects of local fields in excitonic Rabi oscillations and to the conditions that give rise to population inversion in the system.
The effects of local fields, due to electron–hole dipole–dipole interactions, on the excitonic population dynamics of a quantum dot system are studied. The system interacts resonantly with a continuous wave electromagnetic field. We present analytical solutions of the nonlinear optical Bloch equations for any initial condition. We also thoroughly investigate the dynamics of population inversion of the system and show that effects such as extended Rabi oscillations, self-trapping in the initial state and symmetry-breaking can occur.
We investigate the effects of the coupling of charge-transfer excitons on the excitonic population dynamics of a charge-transfer exciton system coupled by either CW or pulsed chirped electromagnetic fields. Owing to the strong coupling, at exact resonance with the CW fields, there is a critical value of the Rabi frequency above which the excitonic Rabi oscillations with complete population transfer to the excited state could be achieved. For the pulsed chirped field, if the coupling is considered, it has also been shown that the excitonic population transfer can be obtained in a wide range of both negative and positive values of chirped rate.
The influence of local fields on the excitonic Rabi oscillations in isolated, arbitrary shaped quantum dot (QD) has been theoretically investigated. Hamiltonian of the system "QD+electromagnetic field" has been obtained. Both QD interaction with classical electromagnetic field and ultrashort optical pulse has been considered. As a result, the bifurcation and anharmonism in the Rabi oscillations in a QD exposed to the monochromatic field have been predicted. The dependence of Rabi oscillations period on the QD depolarization parameter, which characterize local field has been obtained. It has been shown, that for the Gaussian pulse the final state of inversion as a function of peak pulse strength demonstrates step-like transitions.
The influence of electron-hole dipole-dipole interactions (local fields) on the excitonic Rabi oscillations in an isolated quantum dot (QD) has been theoretically investigated. An analysis for the QD interaction with monochromatic field and ultrashort Gaussian pulse has been performed. On the basis of optical Bloch equations the Rabi oscillation dynamics has been investigated. As a result, the bifurcation and essentially anharmonic regimes in the Rabi oscillations in a QD exposed to the monochromatic field have been predicted. The strong dependence of the period of Rabi oscillations on the QD depolarization has been revealed. For the Gaussian pulse it has been shown that the final state of inversion as a function of the pulse peak strength demonstrates step-like transitions.
Manifestation of local fields in excitonic Rabi oscillations in an isolated arbitrary shaped quantum dot (QD) has been theoretically investigated. Interaction of QD with harmonic electromagnetic field as well as with ultrashort optical pulse has been considered. Bifurcation and anharmonism in the Rabi oscillations in a QD are predicted. Step-like transitions of the inversion as a function of peak pulse strength are demonstrated to be observable in a QD exposed to a Gaussian pulse. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)