Field dependent amplitude calibration of adaptive optics supported solar speckle imaging

Details Field dependent amplitude calibration of adaptive optics supported solar speckle imaging Field dependent amplitude calibration of adaptive optics supported solar speckle imaging

Nov 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007apopt..46.8015w&link_type=abstract

Applied Optics IP, vol. 46, Issue 33, pp.8015-8026

Physics

Optics

11

Active Or Adaptive Optics, Stellar Speckle Interferometry, Image Reconstruction Techniques

Scientific paper

Adaptive optics supported solar speckle imaging requires the calibration of the source's Fourier amplitudes with the transfer function of atmosphere and optics. We present analytical models for the relevant transfer functions of an adaptive optics systems. The models include the effect of an arbitrary correction as well as anisoplanatism. The proposed models have been compared with observational data using measurements of α-Orionis and of the solar surface delivering both a direct and indirect method (using the spectral ratio technique) for validation. We find that measurements and model agree to a satisfactory degree.

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