Mr. Tim van Werkhoven Profile

Tim van Werkhoven

at Leiden Observatory

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Publications (5)

Proceedings Article | 25 September 2012 Paper

Modeling the instrumental polarization of the VLT and E-ELT telescopes with the M&m's code

M. de Juan Ovelar, S. Diamantopoulou, R. Roelfsema, T. van Werkhoven, F. Snik, Johan Pragt, C. Keller

Proceedings Volume 8449, 844912 (2012) https://doi.org/10.1117/12.926588

KEYWORDS: Polarization, Polarimetry, Telescopes, Mirrors, Modulation, Device simulation, Optical components, Instrument modeling, Systems modeling, Mueller matrices

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Proceedings Article | 13 September 2012 Paper

FOAM: the modular adaptive optics framework

T.I.M. van Werkhoven, L. Homs, G. Sliepen, M. Rodenhuis, C. Keller

Proceedings Volume 8447, 84472V (2012) https://doi.org/10.1117/12.927001

KEYWORDS: Foam, Adaptive optics, Wavefronts, Wavefront sensors, Control systems, Device simulation, Polarimetry, Adaptive control, Cameras, Actuators

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Proceedings Article | 4 May 2012 Paper

Data driven identification and aberration correction for model-based sensorless adaptive optics

J. Antonello, R. Fraanje, H. Song, M. Verhaegen, H. Gerritsen, C. Keller, T. van Werkhoven

Proceedings Volume 8436, 84360S (2012) https://doi.org/10.1117/12.922002

KEYWORDS: Aberration correction, Deformable mirrors, Data modeling, Adaptive optics, Sensors, Wavefronts, Photodiodes, Imaging systems, Modeling, Radon

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Proceedings Article | 16 February 2012 Paper

Coherence-gated wavefront sensing for microscopy using fringe analysis

Tim van Werkhoven, Hoa Truong, Jacopo Antonello, Rufus Fraanje, Hans Gerritsen, Michel Verhaegen, Christoph Keller

Proceedings Volume 8253, 82530E (2012) https://doi.org/10.1117/12.905797

KEYWORDS: Fringe analysis, Wavefront sensors, Microscopy, Microscopes, Wavefronts, Microelectromechanical systems, Adaptive optics, Current controlled current source, Cameras, Frequency modulation

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Proceedings Article | 6 August 2010 Paper

Site-seeing measurements for the European Solar Telescope

Th. Berkefeld, F. Bettonvil, M. Collados, R. López, Y. Martín, J. Peñate, A. Pérez, G. Scharmer, G. Sliepen, D. Soltau, T. Waldmann, T. van Werkhoven

Proceedings Volume 7733, 77334I (2010) https://doi.org/10.1117/12.857025

KEYWORDS: Wavefront sensors, Solar telescopes, Telescopes, Adaptive optics, Turbulence, Wavefronts, Distortion, Sensors, Cameras, Lanthanum

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