|POSITION: PROFESSOR | CONTROL OF OPTICAL WAVEFIELDS
|TNO UNIT: INDUSTRY (OPTO-MECHATRONICS)
|UNIVERSITY: UNIVERSITY OF LEIDEN, LEIDEN OBSERVATORY
|TNO LOCATION: DELFT, STIELTJESWEG
The study and development of novel modeling, control and sensing technologies for Optical Wavefields in Free space. In my research, I focus on astronomical instrumentation and particularly the direct imaging of exoplanets. I aim at improving performance and enabling new system concepts, by:
- Study, development and on-sky testing of dedicated, high-performance control and optimization methods.
- Adaptation of state-of-the-art control methods (theory and technology) towards astronomical instruments.
- Improvement of adaptive optics system performance for ground-based, optical telescopes.
The development of novel modeling, control and sensing technologies in Optical Wavefields in Free-space connects to the TNO roadmaps that involve:
- Optical satellite communication
- Imaging and laser pointing over horizontal paths
- Ground- and space-based Astronomical Instrumentation
- Ultra-accurate projection of EUV waves in semicon applications
- Detailed description of the anisoplanatic errors in an Adaptive Optics system, quantification of performance limitations and optimized filter approaches to reject these errors.
- Dynamic modelling of the time-varying statistical properties of optical turbulence and methods to perform tracking for wavefield error prediction; verification done on telemetry data.
- Contrast control by Adaptive Optics in direct exoplanet imaging systems
- Maaike van Kooten; funding: ELT-Metis, NOVA Instrument Steering Committee, Sterrewacht Leiden and TNO.
- Vikram Radhakrishnan; funding: Sterrewacht Leiden and TNO.
- Niek Doelman, “The minimum of the time-delay wavefront error in Adaptive Optics”, accepted for publication in Monthly Notices of the Royal Astronomical Society 2020.
- Maaike van Kooten, Niek Doelman and Matthew Kenworthy, “Impact of time-variant turbulence behavior on prediction for adaptive optics systems”, Journal of the Optical Society of America A 36 (5), 731-740, 2019.
- Niek Doelman and James Osborn, “Modelling and prediction of non-stationary optical turbulence behaviour”, Proc. SPIE 9909, Adaptive Optics Systems V, 99091M (2016).