Siegel der Universität

Universität zu Köln
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Mathematisch-Naturwissenschaftliche Fakultät
Fachgruppe Physik

I. Physikalisches Institut

Infrared instrumentation for Large Interferometric Arrays (position 2)

The institute is already strongly involved in several international projects e.g. for VLTI, LBT, SOFIA, Herschel, JWST, APEX, ALMA. In the context of the institute involvement in long-baseline interferometry, the 1st Physics Institute coordinates the BMBF-funded instrumentation project ALSI (Advanced Laser- writing for Stellar Interferometry) in collaboration with the University of Jena and the Max-Planck Institute for Astronomy in Heidelberg, which are among the major institutions in the field of astronomical instrumentation. The ALSI project is aiming at developing new photonic-based solutions fabricated by ultrafast laser writing techniques, which will become the future key components for interferometric multi-aperture beam combination and fringe- tracking.

Within this project, the student will develop the theory for fringe tracking at the sensitivity limit, with emphasize on group delay tracking, multi-wavelength fringe prediction, Bayesian fringe position estimation, active dispersion control.

Details are found here

Infrared instrumentation for Large Interferometric Arrays

The institute is already strongly involved in several international projects e.g. for VLTI, LBT, SOFIA, Herschel, JWST, APEX, ALMA. In the context of the institute involvement in long-baseline interferometry, the 1st Physics Institute coordinates the BMBF-funded instrumentation project ALSI (Advanced Laser- writing for Stellar Interferometry) in collaboration with the University of Jena and the Max-Planck Institute for Astronomy in Heidelberg, which are among the major institutions in the field of astronomical instrumentation. The ALSI project is aiming at developing new photonic-based solutions fabricated by ultrafast laser writing techniques, which will become the future key components for interferometric multi-aperture beam combination and fringe- tracking. 

Within this project, the student will focus on building the multi-aperture interferometric lab test bench in the K and L bands. Under the supervision of the group’s staff, the student will take responsibility of the interferometric lab characterization phase to validate the technology and provide feedback to our technological partner in Jena, with whom he/she will be in regular contact and report to through frequent visits. The goal of the PhD project is to demonstrate that laser-written integrated-optics hardware is technically suitable for interferometric combination in the K and L bands. 

Details are found here

Observational astrophysics using interferometry and adaptive optics

The position is opened for working in observational astrophysics at high angular resolution in the field of star formation, with an emphasis on using stellar interferometry with the VLTI facility in Chile. The PhD candidate will work under the co-supervision of Prof. Lucas Labadie (University of Cologne) and Prof. Gerd Weigelt (Max-Planck Institute for Radio Astronomy, Bonn).

Applicants should hold the equivalent of a MSc or Diploma degree in physics or astronomy. She/He should have ideally gained first experience with astronomical research, and have a background in the field of star formation and/or in stellar interferometry or adaptive optics. Experience with a standard programming language (C/C++/IDL/Matlab) is an asset.

Details are found here.