Strain-induced variation in quantum dot emissions close to Si-vacancy transitions
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2025-05-01 |
| Journal | AIP Advances |
| Authors | Zhao An, Xin Cao, Maik Steinbach, JĆ¼rgen Koch, Peter JƤschke |
| Institutions | Laser Zentrum Hannover, Leibniz University Hannover |
| Citations | 1 |
Abstract
Section titled āAbstractāSolid-state quantum platforms have great potential as well-controllable, scalable devices for applications in quantum communication. Semiconductor quantum dots are a leading candidate for the deterministic generation of high-quality single or entangled photons. Wavelength tunability is a fundamental requirement for the interference of a large number of local emitters, enhancing their scalability. Here, we explore the strain tuning of GaAs/AlGaAs quantum dots emitting single photons close to the transitions of negatively charged Si-vacancy centers in diamonds, which are high-performance quantum memories with an efficient spin-photon interface. The emission wavelength is tuned by applying strain to quantum-dot-containing nanomembranes via micro-structured piezoelectric actuators, and wavelength resonance is achieved between two different quantum dots in the device. Changes in the binding energy of different trion complexes are observed, as well as the reduction of the neutral exciton fine structure. We envisage that such implementations facilitate the heterogeneous integration of quantum photonic devices, integrating both solid-state quantum light sources and memories by adapting their characteristics.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2018 - Material platforms for spin-based photonic quantum technologies [Crossref]
- 2010 - Ultrabright source of entangled photon pairs [Crossref]
- 2021 - A bright and fast source of coherent single photons [Crossref]
- 2022 - Quantum interference of identical photons from remote GaAs quantum dots [Crossref]
- 2018 - Spin-photon interface and spin-controlled photon switching in a nanobeam waveguide [Crossref]
- 2012 - Quantum-dot spin-photon entanglement via frequency downconversion to telecom wavelength [Crossref]
- 2019 - A solid-state source of strongly entangled photon pairs with high brightness and indistinguishability [Crossref]
- 2004 - Controlling the dynamics of spontaneous emission from quantum dots by photonic crystals [Crossref]
- 2023 - Independent electrical control of two quantum dots coupled through a photonic-crystal waveguide [Crossref]
- 2016 - Wavelength-tunable entangled photons from silicon-integrated III-V quantum dots [Crossref]