Project Overview

Interferometric techniques have become a well-established method for the direct imaging and characterization of exoplanets. To further advance this technique, several technological developments need to be undertaken:

• Development of interferometric components at shorter wavelengths.
• Mitigation of polarization biases in light measurements.
• Correction of vibrations and non-common optical path issues.

To address these challenges, we aim to set up an interferometric bench at ESO dedicated to high-contrast imaging and exoplanet detection. The intern will be responsible for assembling this bench and conducting the initial measurements to mitigate the various effects that limit the contrast in interferometric observations.

Intern Responsibilities

• Assembly of the Interferometric Bench: The intern will be in charge of assembling the bench, incorporating advanced interferometric components suitable for shorter wavelengths.
• Initial Measurements: After setting up the bench, the intern will perform initial measurements to identify and address factors limiting the contrast in interferometric observations, including polarization biases, and optical path errors.
• Optimization: Based on the results from the initial measurements, the intern will work on optimizing the bench’s performance for enhanced high-contrast detection of exoplanets. Integration of a dedicated metrology system for optical path monitoring is foreseen

Ideal Candidate Profile

• Currently enrolled in a Master’s program in optics, astrophysics, or a related field.
• Knowledge of interferometry and optical instrumentation.
• Hands-on laboratory experience, especially in setting up optical systems.
• Knowledge of python for instrument control and data analysis will be needed.

Internship Phases

Phase 1: Familiarization with interferometric components and the challenges of direct exoplanet imaging.

Phase 2: Assembly and alignment of the interferometric bench at ESO.

Phase 3: Conducting initial measurements to identify contrast limitations.

Phase 4: Analyzing results and implementing solutions to optimize bench performance.

This internship offers a unique opportunity to work on cutting-edge developments in interferometry for astronomy, with direct applications to exoplanet detection.

Supervisor:  Sylvestre Lacour