Phase diversity at THEMIS : first implementation

Del Moro, D.; Criscuoli, S.; Bonet, J. A.; Márquez, I.; Lemen, C.; Briand, C.
Bibliographical reference

Memorie della Società Astronomica Italiana, v.74, p.811 (2003)

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2003
Number of authors
6
IAC number of authors
2
Citations
0
Refereed citations
0
Description
Phase diversity techniques actually provide robust post-processing methods to restore solar images degraded by seeing-optical aberrations. We present preliminary results of the application of a Partitioned Phase-Diverse Speckle (PPDS) technique at THEMIS. The images have been acquired using the IPM broad-band CCD camera and reduced using a suitable IDL code. The spectral analysis of unrestored/restored images shows a significant improvement of image quality, achieving diffraction limited resolution.