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Since 2019, Matheon's application-oriented mathematical research activities are being continued in the framework of the Cluster of Excellence MATH+
www.mathplus.de
The Matheon websites will not be updated anymore.

PD Dr. Uwe Bandelow

Leiter der Forschungsgruppe Laserdynamik

Weierstrass Institute for Applied Analysis and Stochastics
Mohrenstrasse 39
10117 Berlin
+49 (0) 30 20372471
bandelow@wias-berlin.de
Webseite

Verantwortlicher Wissenschaftler für Anwendungsfeld Optische Technologien



Forschungsschwerpunkte

Nichtlineare Dynamik in der Photonik
Nichtlineare Wellengleichungen
Solitonentheorie

Projekte als Projektleiter

  • OT2

    Turbulence and extreme events in non-linear optics

    PD Dr. Uwe Bandelow / Dr. M. Wolfrum

    Projektleiter: PD Dr. Uwe Bandelow / Dr. M. Wolfrum
    Projekt Mitglieder: Dr Shalva Amiranashvili
    Laufzeit: -
    Status: beendet
    Standort: Weierstraß-Institut

    Beschreibung

    Many modern photonic devices show complex dynamical features in space and time resulting from optical nonlinearities in active, often nanostructured materials. The project is focussed specifically on high-dimensional dynamical regimes in optoelectronic systems. Such a complex spatio-temporal behavior, in which nearly all modes are excited, is characterized by the fact that, in contrast to e.g. solitons or pulsations, it cannot be reduced to a low-dimensional description in terms of classical bifurcation theory. This so-called optical turbulence can be observed both in a Hamiltonian and in a dissipative context. A mathematical treatment of the resulting multi-scale and multi-physics problems presents major challenges for modelling, numerical, and analytical investigations. A simulation of the mostly 2+1 dimensional PDE-systems requires efficient parallelization strategies, instability mechanisms can be described only in terms of amplitude equations, and multi-scale effects in complex device structures can lead to singularly perturbed dynamical problems.

    http://www.wias-berlin.de/projects/ECMath-OT2/project_OT2.jsp
  • OT-AP1

    Multi-Dimensional Modeling and Simulation of Electrically Pumped Semiconductor-Based Emitters

    PD Dr. Uwe Bandelow / Dr. Thomas Koprucki / Prof. Dr. Alexander Mielke / Prof. Dr. Frank Schmidt

    Projektleiter: PD Dr. Uwe Bandelow / Dr. Thomas Koprucki / Prof. Dr. Alexander Mielke / Prof. Dr. Frank Schmidt
    Projekt Mitglieder: -
    Laufzeit: 01.01.2008 - 31.12.2019
    Status: laufend
    Standort: Weierstraß-Institut / Konrad-Zuse-Zentrum für Informationstechnik Berlin

    Beschreibung

    The aim of this joint project of WIAS and ZIB is the comprehensive and self-consistent optoelectronic modeling and simulation of electrically pumped semiconductor-based light emitters with spatially complex 3D device structure and quantum dot active regions. The required models and methods for an accurate representation of devices, such as VCSELs and single photon emitters, featuring open cavities, strong interactions between optical fields and carriers, quantum effects, as well as heating will be developed and implemented, resulting in a set of tools, that will be provided for our partners in the CRC 787.

    http://www.zib.de/projects/multi-dimensional-modeling-and-simulation-vertical-cavity-surface-emitting-lasers-vcsels http://wias-berlin.de/projects/sfb787-b4/