Interferential seeing monitor

Z. Benkhaldoun; A. Habib; M. Sabil; Y. El Azhari; T. El Halkouj; O. Azagrouze

doi:10.1117/12.786684

28 July 2008 Interferential seeing monitor

Z. Benkhaldoun, A. Habib, M. Sabil, Y. El Azhari, T. El Halkouj, O. Azagrouze

Proceedings Volume 7013, Optical and Infrared Interferometry; 70134I (2008) https://doi.org/10.1117/12.786684
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

We present here a new approach to estimate the astronomical seeing which is a fundamental parameter in high angular resolution, in adaptive optics and site testing. Based on this approach, we developed seeing monitor, called Interferential Seeing Monitor (hereafter ISM). The principle of the ISM is based on the study of the diffraction-interference pattern produced by a Young's double-slit in a telescope focus. From the shape of that pattern, we determine the phase difference between the diffracted light rays that meet on the image plane. Then, the phase structure function is calculated which leads to the seeing value.

Citation Download Citation

Z. Benkhaldoun, A. Habib, M. Sabil, Y. El Azhari, T. El Halkouj, and O. Azagrouze "Interferential seeing monitor", Proc. SPIE 7013, Optical and Infrared Interferometry, 70134I (28 July 2008); https://doi.org/10.1117/12.786684

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