Superresolution in compensated telescopes
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Updated: Aug 17, 2026

Bringing the Visible Universe into Focus with Robo-AO
Published on: February 12, 2013
Vidal F Canales1, Daniel M de Juana, Manuel P Cagigal
1Departamento de Física Aplicada, Universidad de Cantabria, Los Castros S/N, Santander 39005, Spain. fernancv@unican.es
Abstract:
We present a procedure for attaining resolution beyond the diffraction limit in ground-based telescopes. This procedure is based on the use of rotationally symmetric pupil plane filters that can be easily implemented in dynamic optical devices such as a deformable mirror of an adaptive-optics system. We show that a successful application of the technique requires partial compensation for atmospheric distortion by adaptive optics. Consequently, we derive the required level of compensation as a function of the atmospheric conditions. Finally, our results are checked using simulated data.
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