Michaël Zickar

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Interferometers with long optical paths in air usually require knowledge and control of air dispersion. In addition, the measurements at several wavelengths and the dispersion properties of air allow errors caused by air turbulence to be compensated for. An innovative technique for air-dispersion measurement is described for long-baseline ground-based(More)
Micromirror arrays have been fabricated dedicated to astronomical instrumentation. The 100times200 mum<sup>2</sup> sized micromirrors show an excellent optical surface quality and can be electrostatically tilted by 20deg. A system of multiple landing beams have been implemented, which forces uniform tilt angle
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