The effects of AO systems on polarized light

M. Stangalini; L. Giovannelli; D. Del Moro; F. Berrilli; R. Piazzesi

doi:10.1117/12.2056470

22 August 2014 The effects of AO systems on polarized light

M. Stangalini, L. Giovannelli, D. Del Moro, F. Berrilli, R. Piazzesi

Proceedings Volume 9148, Adaptive Optics Systems IV; 91486P (2014) https://doi.org/10.1117/12.2056470
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

Spectropolarimetry is nowadays one of the most used tool to investigate small scale (100 km) magnetic fields in the Sun’s atmosphere. In addition, the forthcoming 4-meter class solar telescopes will provide an unprecedented view of the solar magnetism with an accuracy (10^-4) never reached before, and on spatial scales which are at least twice as smaller. For this reason MCAO systems providing high Strehl ratios on a large field of view are being developed. Thus, the study of any possible effect of such AO systems on the polarization accuracy has to be carefully assessed. In this contribution we present preliminary results of laboratory tests conducted with the aim of evaluating possible drawbacks of the use of deformable mirrors on the spectropolarimetric accuracy.

Citation Download Citation

M. Stangalini, L. Giovannelli, D. Del Moro, F. Berrilli, and R. Piazzesi "The effects of AO systems on polarized light", Proc. SPIE 9148, Adaptive Optics Systems IV, 91486P (22 August 2014); https://doi.org/10.1117/12.2056470

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