Projects from Prof. Dr. Jens Förstner

Institute for Photonic Quantum Systems (PhoQS)

16 projects were found

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

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Photonic Quantum Systems Network (PhoQSNET) - Quantum communication infrastructure

Data security is critical to modern society. From personal data and identity fraud to cyber-attacks threatening the integrity of sovereign nations, the need for secure communication and data processing has never been greater. While quantum networks address some of these issues, in that they can be provably secure for many cryptographic ...

Duration: 01/2022 - 12/2027

Funded by: DFG

PhoQC: Photonic Quantum Computing

Photonic Quantum Computing (PhoQC): The aim is to research the fundamentals for the realization of photonic quantum computers. For this purpose, an internationally leading research center is to be created at the University of Paderborn in perspective, in which the fields of physics, mathematics, engineering sciences, computer science and electrical ...

Duration: 11/2021 - 12/2024

Funded by: MKW NRW, EIN Quantum NRW

FOR 5208 - Modelling and simulation of the coupled acoustic, electrical, and thermal dynamics of piezoceramics

The determination of material parameters of piezoceramics for actuator applications by means of an inverse method requires an efficient method for the simulation of the different physical processes in the piezoceramic sample. In addition to the electrostatic equations and acoustic wave propagation, this project focuses on the causal description of ...

Duration: 10/2021 - 09/2024

Funded by: DFG

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FOR 5208: Modelling and simulation of the coupled acoustic, electrical, and thermal dynamics of piezoceramics

Ultrasonic sensors and actuators are used in a wide range of applications in science and technology. In the design and optimization of these components, computer technology is increasingly used. One of the problems in this procedure is the insufficient knowledge of the acoustic or electromechanical material properties of the piezoelectric materials ...

Duration: 01/2021 - 12/2026

Funded by: DFG

TRR 142 - Nonlinear optical surfaces based on ZnO-plasmonic hybrid-nanostructures (C05)

The project targets the efficient manipulation of light beams with simultaneous frequency conversion at an ultrathin metal-zinc oxide metasurface. We plan to manipulate the amplitude and phase of the nonlinear waves based on the structural design and material composition on a nanoscale by utilizing a nonlinear Pancharatnam-Berry phase. By coupling ...

Duration: 01/2018 - 12/2021

Funded by: DFG

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HighPerMeshes: Domain-specific programming and target-platform-aware compiler infrastructure for algorithms on unstructured grids

HighPerMeshes is a collaborative research project funded by German Ministry of Education and Research (BMBF). The project comprises a consortium of four funded partners and one associated partner and is coordinated by the Paderborn Center for Parallel Computing at Paderborn University.

Duration: 04/2017 - 03/2020

Funded by: BMBF

Contact: Bernard Bauer

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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

TRR 142 - Plasmonic nano-antenna enhanced nonlinear light emission and frequency conversion in dielectric and semiconductor micro-structures (A05)

The project deals with the enhancement of the weak light-matter interaction for nonlinear optical processes. Resonant excitation of coherent electron oscillations in metallic nanostructures can lead to strong field enhancements due to an antenna effect for the photons. With a suitable spatial arrangement of such antennas, even a kind of phase ...

Duration: 04/2014 - 12/2018

Funded by: DFG

TRR 142 - Nonlinear optics in quantum dot molecules (C03)

In this project, nonlinear optical effects in InGaAs quantum dot molecules (QPM) are investigated. The goal is to use the QPM as a frequency converter. To this end, absorbed photons excite an exciton complex, which is transformed into another complex by applied voltage pulses on nanosecond and picosecond time scales as charges are transferred ...

Duration: 04/2014 - 12/2018

Funded by: DFG