36 citations · 114 across the 8 of their papers we have counts for
9 papers
V(WF)S: Very Wide Field WaveFront Sensor for GLAO
Olivier Lai, Mark Chun, Stefan Kuiper +7
Adaptive optics is a technique mostly used on large telescopes. It turns out to be challenging for smaller telescopes (0.5~2m) due to the small isoplanatic angle, small subaperture…
Robustness of prediction for extreme adaptive optics systems under various observing conditions: An analysis using VLT/SPHERE adaptive optics data
M. A. M. van Kooten, Niek Doelman, Matthew Kenworthy
For high-contrast imaging (HCI) systems, such as VLT/SPHERE, the performance of the system at small angular separations is contaminated by the wind-driven halo in the science image…
The minimum of the time-delay wavefront error in Adaptive Optics
Niek Doelman
An analytical expression is given for the minimum of the time-delay induced wavefront error (also known as the servo-lag error) in Adaptive Optics systems under temporal prediction…
Impact of time-variant turbulence behavior on prediction for adaptive optics systems
Maaike van Kooten, Niek Doelman, Matthew Kenworthy
For high contrast imaging systems, the time delay is one of the major limiting factors for the performance of the extreme adaptive optics (AO) sub-system and, in turn, the final co…
Extended object reconstruction from image intensities blurred by unknown aberrations
Yifeng Shao, Niek Doelman, Silvania F. Pereira +1
We describe and experimentally validate an algorithm to reconstruct an unknown extended object from through-focus measured image intensities blurred by unknown aberrations. It is s…
Focal-plane wavefront sensing with high-order adaptive optics systems
Visa Korkiakoski, Christoph U. Keller, Niek Doelman +3
We investigate methods to calibrate the non-common path aberrations at an adaptive optics system having a wavefront-correcting device working at an extremely high resolution (large…