Department Physik - Computational Optoelectronics and Photonics (Universität Paderborn)

Research

We are interested in the optical, electronic and quantum optical properties of different material systems, which we analyse by microscopic theory and numerical simulations. For example, we investigate situations in which matter is excited by very short laser pulses. This allows us to study in detail ultrafast dynamical processes that occur on time scales of a few femtoseconds (1 fs = 10^-15 s) or even in the range of attoseconds (1 as = 10^-18 s). Nonlinearities resulting from the interaction with very intense light pulses can drastically change the optical properties. Besides purely optical processes, optically induced transport phenomena are also of great interest. Furthermore, a strong focus is on investigating interactions with quantum light, which sheds new light on the fundamentals of the interaction between light and matter and is very promising for various applications in quantum technology.

Team

Research group of Prof. Dr. Torsten Meier, 2022

We are a diverse international team working on the different topics and projects.

Publications

See complete list in our Research Information System
see also ORCID profile, ResearcherID, or google scholar profile of Torsten Meier

Seleted recent publications

Accelerating the analysis of optical quantum systems using the Koopman operator,
A. Hunstig, S. Peitz, H. Rose, and T. Meier,
arXiv:2310.16578

Optical Stark effect in type-II semiconductor heterostructures,
F. Schäfer, A. Trautmann, C. Ngo, J.T. Steiner, C. Fuchs, K. Volz, F. Dobener, M. Stein, T. Meier, and S. Chatterjee, submitted.

Chirped Bloch-Harmonic oscillations in a parametrically forced optical lattice,
U. Ali, M. Holthaus, and T. Meier,
Phys. Rev. Research 5, 043152 (2023).

Phase sensitivity of spatially broadband high-gain SU(1,1) interferometers,
D. Scharwald, T. Meier, and P. R. Sharapova,
Phys. Rev. Research 5, 043158 (2023).

Excitonic anomalous currents in semiconductor quantum wells,
C. Ngo, S. Priyadarshi, H. T. Duc, M. Bieler, and T. Meier,
Phys. Rev. B 108, 165302 (2023).

Temporal sorting of optical multi-wave-mixing processes in semiconductor quantum dots,
S. Grisard, A.V. Trifonov, H. Rose, R. Reichhardt, M. Reichelt, C. Schneider, M. Kamp, S. Höfling, M. Bayer, T. Meier, and I.A. Akimov,
ACS Photonics 10, 3161 (2023).

Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation,
R. Zuo, X. Song, S. Ben, T. Meier, and W. Yang,
Physical Review Research 5, L022040 (2023).

Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse,
X. Song, S. Yang, G. Wang, J. Lin, L. Wang, T. Meier, and W. Yang,
Optics Express 31, 18862 (2023).

Gain recovery dynamics in active type-II semiconductor heterostructures,
F. Schäfer, M. Stein, J. Lorenz, F. Dobener, C. Ngo, J. T. Steiner, C. Fuchs, W. Stolz, K. Volz, T. Meier, J. Hader, J.V. Moloney, S.W. Koch, and S. Chatterjee,
Applied Physics Letters 122, 082104 (2023).

Quantum-optical excitations of semiconductor nanostructures in a microcavity using a two-band model and a single-mode quantum field,
H. Rose, A.N. Vasil’ev, O.V. Tikhonova, T. Meier, and P. R. Sharapova,
Phys. Rev. A 107, 013703 (2023).

Manipulation of nonautonomous nonlinear wave solutions of the generalized coupled Gross–Pitaevskii equations with spin–orbit interaction and weak Raman couplings,
D. Belobo Belobo and T. Meier,
Results in Physics 51, 106655 (2023).

Projects

Two projects in the DFG TRR 142/3 Tailored nonlinear photonics:
From fundamental concepts to functional structures:
A02 "Nonlinear spectroscopy of semiconductor nanostructures with quantum light" (Akimov (TU Dortmund), Meier);
A10 "Nonlinear strong-field dynamics of atomically thin transition metal dichalcogenides" (Lange & Ruppert (TU Dortmund), Meier).

PI in the project "Photonisches Quantencomputing" (PhoQC), which is supported by the Ministry for Cuture and Science of the state of North Rhine-Westphalia.

Mobility grant by the Sino-German Center for Research Promotion (SGC) (joint venture of the National Natural Science Foundation of China (NSFC) and the DFG), Three-Dimensional Microscopic Simulations of High-Harmonic Generation and Strong Field Phenomena in Semiconductors, together with Prof. Xiaohong Song (Hainan University).

A complete list of projects is available in our project database