Projects from Prof. Dr. Dirk Reuter
TRR 142 - Ultrafast coherent opto-electronic control of a photonic quantum system (B06*)
In this project we will integrate semiconductor quantum dots in field-tunable microcavity heterostructures to achieve ultrafast coherent opto-electronic control of the emitter cavity coupling. By tuning different quantum dot transitions in and out of the cavity resonance we aim to generate (i) cavity assisted two-photon emission, (ii) hyper ...
Duration: 01/2022 - 12/2026
Funded by: DFG
TRR 142 - Subcycle nonlinearities of ultrastrong light-matter coupling (B08*)
In this project we will investigate subcycle nonlinearities of highly narrowband THz cavity polaritons in the deep-strong light-matter coupling regime. Cyclotron and intersubband resonances of n-type modulation-doped GaAs/AlxGa1-xAs multi quantum wells fabricated by molecular beam epitaxy will be coupled to a novel generation of THz metal ...
Duration: 01/2022 - 12/2025
Funded by: DFG
TRR 142 - Hybrid lithium niobate on insulator quantum photonic integrated circuit (C08*)
In this project, we will explore thin-film lithium niobate on insulator (LNOI) as the material platform for quantum photonic integrated circuits. After transfer printing of cavity coupled InAs quantum dots onto a LNOI circuit, we will on-chip frequency convert the on-demand generated photons from the quantum dot using a periodically poled LNOI ...
Duration: 01/2022 - 12/2025
Funded by: DFG
TRR 142 - On-demand ideal photon pair generation for entanglement swapping at telecom frequencies (C09*)
The goal of this project is the demonstration of on-demand ideal photon pair generation for entanglement swapping at telecom frequencies employing quantum dots embedded in circular Bragg grating cavities. The InAs quantum dots in an InxGayAl1-x-yAs-matrix are grown by molecular beam epitaxy and the circular Bragg grating cavity will allow to tune ...
Duration: 01/2022 - 12/2025
Funded by: DFG
Festkörperbasierte Schlüsselbauelemente für die Quantenkommunikation (Folgeprojekt) (QR.X)
Es handelt sich um ein Folgeprojekt des Vorhabens Q.Link.X, welches Prof. Zrenner mit Prof. Silberhorn und Prof. Reuter beantragt hatte. Konsortialführer ist die Ruhr-Universität Bochum. Projektleiter an der Universität Paderborn ist Prof. Dr. Dirk Reuter. Neben Prof. Reuter sind Prof. Silberhorn und Prof. Jöns beteiligt.
Duration: 08/2021 - 07/2024
Funded by: BMBF
Contact: Prof. Dr. Dirk Reuter
Festkörperbasierte Schlüsselbauelemente für die Quantenkommunikation / Q.link.X - Quantenrepeater für eine abhörsichere Kommunikation über große Distanzen
In the course of the digitalization of our society, data security and secure communication are becoming increasingly important. Quantum communication offers a promising approach for a fundamental solution to the security issues at hand: It uses quantum states as information carriers that cannot be cloned or read unnoticed due to fundamental ...
Duration: 08/2018 - 07/2021
Funded by: BMBF
Contact: Prof. Dr. Artur Zrenner, Prof. Dr. Christine Silberhorn, Prof. Dr. Dirk Reuter
TRR 142 - Cavity enhanced two-photon physics with semiconductor quantum dots (A03)
This project is focused on two-photon processes in semiconductor microcavities with embedded quantum dots. The project work will be concentrated on the down-conversion from the biexciton state via an optically induced virtual state which leads to a cavity enhanced single photon emission. Our joint theoretical and experimental quantum optical study ...
Duration: 04/2014 - 12/2021
Funded by: DFG
TRR 142 - Tailored ultrafast acoustics for light emission modulation (A06)
The interaction of coherent acoustic phonons and excitons in low-dimensional semiconductor structures is in the focus of this project proposal. In the experiments, picosecond strain pulses are sent through the nanostructure. The response on the ultrafast acoustic impact is monitored through the light emission and tailored by nanoscale adjustment of ...
Duration: 04/2014 - 12/2025
Funded by: DFG
TRR 142 - Molecular beam epitaxy of tailored GaAs-based heterostructures (Z01)
This scientific service project provides the following GaAs-based samples for other projects within TRR: Heterostructures with embedded (In,Ga)As quantum dots with tailored emission and biexciton binding energies. Schottky diodes containing quantum dot molecules. Planar GaAs/AlAs-based resonator structures with integrated quantum wells. ...
Duration: 04/2014 - 12/2017
Funded by: DFG
Transregional Collaborative Research Center TRR 142 - Tailored Nonlinear Photonics: From Fundamental Concepts to Functional Structures
The central goal of this CRC is the exploration, development, and engineering of future nonlinear photonics, which uses state-of-the-art technological capabilities for the exploration of new physics and devices based on tailored strong nonlinearities and genuine quantum effects. Our research harnesses tailored solid-state systems and bridges the ...
Duration: 04/2014 - 12/2025
Funded by: DFG