High-resolution imaging through atmospheric turbulence: link between anisoplanatism and intensity fluctuations

Marc Sechaud; Frederic Mahe; Thierry Fusco; Vincent Michau; Jean-Marc Conan

doi:10.1117/12.371314

10 December 1999 High-resolution imaging through atmospheric turbulence: link between anisoplanatism and intensity fluctuations

Marc Sechaud, Frederic Mahe, Thierry Fusco, Vincent Michau, Jean-Marc Conan

Author Affiliations +

Proceedings Volume 3866, Optics in Atmospheric Propagation and Adaptive Systems III; (1999) https://doi.org/10.1117/12.371314
Event: Remote Sensing, 1999, Florence, Italy

Abstract

High resolution imaging with adaptive optics and numerical image restoration processing is now an operational reality for ground-based telescopes. It provides a real-time compensation for turbulence degraded images. However, these correction techniques are only effective in a limited field of view due to anisoplanatism. For endoatmospheric applications, strong intensity fluctuations may also limit the degree of correction. In this paper, we estimate the isoplanatic domain as a function of the degree of correction of high resolution imaging systems and the transition between weak and strong intensity fluctuation regimes. We show that the saturation onset of scintillation corresponds to an isoplanatic field which becomes smaller than the resolution of adaptive optics systems.

Citation Download Citation

Marc Sechaud, Frederic Mahe, Thierry Fusco, Vincent Michau, and Jean-Marc Conan "High-resolution imaging through atmospheric turbulence: link between anisoplanatism and intensity fluctuations", Proc. SPIE 3866, Optics in Atmospheric Propagation and Adaptive Systems III, (10 December 1999); https://doi.org/10.1117/12.371314

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available