Scintillation and phase anisoplanatism in Shack-Hartmann wavefront sensing
JOSA A, Vol. 23, Issue 3, pp. 613-624 (2006)
http://dx.doi.org/10.1364/JOSAA.23.000613
Enhanced HTML 
Acrobat PDF (262 KB)
Abstract
Adaptive optics provides a real-time compensation for atmospheric turbulence that severely limits the resolution of ground-based observation systems. The correction quality relies on a key component, that is, the wavefront sensor (WFS). When observing extended sources, WFS precision is limited by anisoplanatism effects. Anisoplanatism induces a variation of the turbulent phase and of the collected flux in the field of view. We study the effect of this phase and scintillation anisoplanatism on wavefront analysis. An analytical expression of the error induced is given in the Rytov regime. The formalism is applied to a solar and an endoatmospheric observation. Scintillation effects are generally disregarded, especially in astronomical conditions. We shall prove that this approximation is not valid with extended objects.
© 2006 Optical Society of America
OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
ToC Category:
Atmospheric and Oceanic Optics
History
Original Manuscript: April 22, 2005
Revised Manuscript: July 27, 2005
Manuscript Accepted: August 12, 2005
Virtual Issues
Vol. 1, Iss. 4 Virtual Journal for Biomedical Optics
Citation
Clélia Robert, Jean-Marc Conan, Vincent Michau, Thierry Fusco, and Nicolas Vedrenne, "Scintillation and phase anisoplanatism in Shack-Hartmann wavefront sensing," J. Opt. Soc. Am. A 23, 613-624 (2006)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-23-3-613
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Theory of branch-point detection and its implementation (JOSAA)
- Measuring wind speeds and turbulence with a wave-front sensor (OL)
- Rapid and robust detection of branch points from wave-front gradients (OL)
- Efficient phase estimation for large-field-of-view adaptive optics (OL)
- Horizontal Line-of-Sight Turbulence Over Near-Ground Paths and Implications for Adaptive Optics Corrections in Laser Communications (AO)
Related Conference Papers
- Solving Propagation Problems in Turbulence Using Filter Functions and Mellin Transforms
- Wavefront Sensing in Strong Scintillation with a Self-Referencing Interferometer Wavefront Sensor
- Scintillation and Phase Anisoplanatism in Shack-Hartmann Wavefront Sensing
- Towards Low Cost turbulence generator for AO testing: Utility, control and stability
- Photon efficient wavefront sensing using an SLM for polarization-based weak measurements
« Previous Article | Next Article »
OSA is a member of 