The Anisoplanatic Point‐Spread Function in Adaptive Optics

The Anisoplanatic Point-Spread Function in Adaptive Optics

The effects of anisoplanatism on the adaptive optics point-spread function are investigated. A model is derived that combines observations of the guide star with an analytic formulation of anisoplanatism in order to generate predictions for the adaptive optics point-spread function at arbitrary locations within the field of view. The analytic formulation captures the dependencies of anisoplanat...

Accounting for the anisoplanatic point spread function in deep wide - field adaptive optics images ⋆

In this paper we present the approach we have used to determine and account for the anisoplanatic point spread function (PSF) in deep adaptive optics (AO) images for the Survey of a Wide Area with NACO (SWAN) at the ESO VLT. The survey comprises adaptive optics observations in the Ks band totaling ∼ 30 arcmin , assembled from 42 discrete fields centered on different bright stars suitable for AO...

Digital Adaptive Optics: Introduction and Application to Anisoplanatic Imaging

Adaptive optics in microscopy.

The imaging properties of optical microscopes are often compromised by aberrations that reduce image resolution and contrast. Adaptive optics technology has been employed in various systems to correct these aberrations and restore performance. This has required various departures from the traditional adaptive optics schemes that are used in astronomy. This review discusses the sources of aberra...

Adaptive Optics in Astronomy

The field of adaptive optics (AO) has developed as a means to correct for the phase disturbances of an optical signal by understanding the medium through which it passes. This paper is intended to be a brief introduction to the field of adaptive optics with an emphasis the role of AO in astronomy. I. PERPTUAL TREMOR Since the time of Isaac Newton, it has been known that optical waves (in fact a...