Work

Phonon Effects on Population Inversion in Quantum Dots: Resonant, Detuned and Frequency-Swept Excitations

Year: 2012

Type: article

Abstract: The eect of acoustic phonons on dierent light-induced excitations of a semiconductor quantum dot is investigated.Resonant excitation of the quantum dot leads to the Rabi oscillations, which are damped due to the phonon interaction.When the excitation frequency is detuned, an occupation can only occur due to phonon absorption or emission processes.For frequency-swept excitations a population inversion is achieved through adiabatic rapid passage, but the inversion is also damped by phonons.For all three scenarios the inuence of the phonons depends non-monotonically on the pulse area.

Source: Acta Physica Polonica A

DOI: 10.12693/aphyspola.122.1065

Authors: D.E. Reiter, S. Lüker, K. Gawarecki, A. Grodecka-Grad, P. Machnikowski, V.M. Axt, T. Kuhn

Institutions: University of Münster, Wrocław University of Science and Technology, University of Copenhagen, Danish National Research Foundation, University of Bayreuth

Language: English

Topic: Semiconductor Quantum Structures and Devices

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Alexander von Humboldt-Stiftung, Fundacja na rzecz Nauki Polskiej, European Regional Development Fund

OpenAlex ID: W1607873598

FWCI: 1.983

Cites: 20

Cited by: 29

Related to: 10