Offene Stellen der AG Computergestützte Photonik

Prof. Dr. Antonio Calà Lesina

Wissenschaftliche/r Mitarbeiter/in (Doktorand/in, m/w/d)

Studentische Hilfskräfte

Masterarbeiten/ Studienarbeiten

  • Import of complex CAD geometries into in-house nanophotonics software

    My group develops in-house a 3D Maxwell’s equations solver by exploiting parallel computing and the finite-difference time-domain (FDTD) method. The software is used to study how light interacts with nanostructured materials, so called metamaterials, to obtain optical properties beyond what the material itself can achieve. We currently cannot simulate geometries created with a CAD software, such as Solidworks or AutoCAD. The student will work on this integration. This will enable the simulation of highly complex geometries in nanophotonics.

    Required qualifications for all projects/thesis:

    • Very good programming skills,
    • Very good knowledge of electromagnetic fields theory,
    • Excellent communication in English.

     

    To apply please send CV and transcripts to the office of Prof. Antonio Calà Lesina (office-calalesina@hot.uni-hannover.de).

  • Inverse design of nanophotonic structures with deep neural networks

    Optical metasurfaces represent a revolutionary tool to manipulate the behaviour of light at the nanoscale. They can reduce the footprint of traditional optical components, e.g., flat lenses, and achieve optical properties otherwise not available (tunable beam steering, wavefront manipulation, etc), thus finding applications in all domains of optics and photonics. The design of metasurfaces rely on full-wave simulations combined with optimization algorithms, such as topology optimization, genetic algorithms, and particle swarm. In recent years, deep neural networks have been introduced for the inverse design of metasurfaces and nanostructured materials in general. The student will develop deep neural network techniques for the inverse design of optical metasurfaces.

    Required qualifications for all projects/thesis:

    • Very good programming skills,
    • Very good knowledge of electromagnetic fields theory,
    • Excellent communication in English.

     

    To apply please send CV and transcripts to the office of Prof. Antonio Calà Lesina (office-calalesina@hot.uni-hannover.de).

  • Tunable optical metasurfaces

    Optical metasurfaces are array of nanostructures that can modify the properties of light upon reflection or transmission. Tuning the optical response of such metasurfaces has important implications for display technology, autonomous driving, and adaptive optical lenses. The student will explore some innovative tuning mechanisms based on charge carrier transport to control the optical response of the metasurface. The thesis is part of a collaborative project with Prof. Dr. Boris Chichkov. The student will work on simulations which cover the categories of semiconductor devices & electronics, as well as, photonics and wave optics. The ideal candidate has a strong interest in performing simulations, programming, and developing their numerical modelling skills.

    Required qualifications for the thesis:

    • Knowledge of at least one programming language.
    • Knowledge of wave optics and semiconductor physics.
    • Very good communication in English.

     

    To apply please send CV and transcripts to the office of Prof. Antonio Calà Lesina (office-calalesina@hot.uni-hannover.de).