Direct determination of atmospheric phase perturbations with a novel interferometer

Details Direct determination of atmospheric phase perturbations with a novel interferometer Direct determination of atmospheric phase perturbations with a novel interferometer

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1237..356n&link_type=abstract

IN: Amplitude and intensity spatial interferometry; Proceedings of the Meeting, Tucson, AZ, Feb. 14-16, 1990 (A91-30676 12-89).

Astronomy and Astrophysics

Astronomy

2

Atmospheric Effects, Interferometers, Seeing (Astronomy), Wave Fronts, Atmospheric Turbulence, Signal To Noise Ratios, Structural Vibration, Telescopes

Scientific paper

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.

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