02/04/2021
The Human Resources Strategy for Researchers

Innovative Wave Front Sensors for Astronomical Adaptive Optics

This job offer has expired


  • ORGANISATION/COMPANY
    CNRS
  • RESEARCH FIELD
    AstronomyAstrophysics
    AstronomyCosmology
  • RESEARCHER PROFILE
    First Stage Researcher (R1)
  • APPLICATION DEADLINE
    02/06/2021 23:59 - Europe/Brussels
  • LOCATION
    France › MARSEILLE 13
  • TYPE OF CONTRACT
    Temporary
  • JOB STATUS
    Full-time
  • HOURS PER WEEK
    35
  • OFFER STARTING DATE
    01/10/2021

OFFER DESCRIPTION

In this general frame work the objectives of the project for this job are threefold:
1. to develop new agile and multi-stage WFS schemes that will ensure both ultimate performance and good robustness to variable observing conditions in the frame of High Contrast Imaging applications;
2. to propose innovative on-sky identification and calibration processes to ensure the ultimate performance of the full AO loop on a very wide range of observational and environmental conditions;
3. to lead the final design and implementation in the laboratory and on-sky of these new concepts with existing and in-development facilities. In laboratory, it will consist in modifying the LOOPS bench @ LAM in order to include the new proposed WFS schemes. For the on-sky validations, two AO benches (currently under development) could be considered: the PAPYRUS bench on the 1m52 telescope of the Observatoire de Haute Provence (nearby Marseille) and the CANARDO bench on the William Herschel Telescope (4.2m) located in the Canary Islands.

Europe is currently preparing the largest telescope of the world: the ELT [European Extremely Large Telescope] (https://elt.eso.org/). Planned by the end of 2026, this giant of 39 m diameter will allow answering fundamental questions of contemporary astrophysics by imaging exoplanets or studying large scales of the universe. However, images of astrophysical objects done by ground-based telescopes suffer from the distortion caused by the atmospheric turbulence which reduces the capacity of instruments to distinguish objects too close to each other. Adaptive Optics [AO] is a technique which allows restoring this loss of angular resolution by correcting the effects of atmospheric turbulence. In operation, on several astronomical observatories for almost 25 years, This technology is based on a deformable mirror which corrects in real time the incoming wave front by using information coming from a sensor which measures the turbulent phase called «Wave Front Sensor » [WFS]. WFS is the heart of any AO system. Ultimately it drives the final performance of the AO and thus of the associated astrophysical instrumentation. The researcher will be at the heart of the AO developments for the next generation of high contrast instrumentation both for the VLT (SPHERE+, MAVIS) and the ELT (HARMONI, PCS).

The researcher will work in the premise of the Laboratoire d'Astrophysique de Marseille within the R&D team (https://www.lam.fr/recherche-14/r-d-optics-group/?lang=en). He/She will benefit from all the expertise and the resources (simulation, benches, access to on-sky instrumentations) of the team. This project is part of the WOLF project: www.anr-wolf.com

More Information

Eligibility criteria

- Instrumentation,
- Optics,
- Signal processing (mandatory),
- Python,
- Matlab.

Additional comments

Applicants should submit a curriculum vitae and a single pdf file with :
• a list of publications;
• a one-page cover letter;
• the contact details of up to three reference persons (no need for the reference letters at this stage);
• a short research statement describing past achievements and future projects
For any information, you can contact : Benoit.neichel@lam.fr & Thierry.fusco@onera.fr

Web site for additional job details

Required Research Experiences

  • RESEARCH FIELD
    Astronomy
  • YEARS OF RESEARCH EXPERIENCE
    None
  • RESEARCH FIELD
    AstronomyAstrophysics
  • YEARS OF RESEARCH EXPERIENCE
    None
  • RESEARCH FIELD
    AstronomyCosmology
  • YEARS OF RESEARCH EXPERIENCE
    None

Offer Requirements

  • REQUIRED EDUCATION LEVEL
    Astronomy: PhD or equivalent
  • REQUIRED LANGUAGES
    FRENCH: Basic
Work location(s)
1 position(s) available at
Laboratoire d'Astrophysique de Marseille
France
MARSEILLE 13

EURAXESS offer ID: 623148
Posting organisation offer ID: 20720

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