Direct determination of atmospheric phase perturbations with a novel interferometer

Nick Nightingale; David F. Buscher

doi:10.1117/12.19307

1 August 1990 Direct determination of atmospheric phase perturbations with a novel interferometer

Nick Nightingale, David F. Buscher

Proceedings Volume 1237, Amplitude and Intensity Spatial Interferometry; (1990) https://doi.org/10.1117/12.19307
Event: SPIE Astronomical Telescopes and Instrumentation for the 21st Century, 1990, Tucson, AZ, United States

Abstract

A telescope-mounted wavefront-folding interferometer designed to measure the phase fluctuations due to atmospheric seeing on a wide range of temporal and spatial scales is described. It makes use of photon-counting avalanche photodiodes to achieve high SNRs at high sampling rates. In addition to testing theories of the atmospheric turbulence responsible for the seeing, instrumental effects such as telescope vibrations can be quantified.

Citation Download Citation

Nick Nightingale and David F. Buscher "Direct determination of atmospheric phase perturbations with a novel interferometer", Proc. SPIE 1237, Amplitude and Intensity Spatial Interferometry, (1 August 1990); https://doi.org/10.1117/12.19307

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