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Stability of the adaptive-optic point spread function: metrics, deconvolution, and initial Palomar results

Bloemhof, E. E. and Marsh, K. A. and Dekany, R. G. and Troy, M. and Marshall, J. and Oppenheimer, B. R. and Hayward, T. L. and Brandl, B. (2000) Stability of the adaptive-optic point spread function: metrics, deconvolution, and initial Palomar results. In: Adaptive Optical Systems Technology. Proceedings of SPIE. No.4007. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 299-308. ISBN 9780819436320.

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The essential benefit of adaptive optics is delivering a telescope point-spread function (PSF) limited by diffraction rather than by atmospheric turbulence. In practice, achieving diffraction-limited PSF diameters is relatively routine for modern high-order systems, at least within a restricted isoplanatic patch containing the guide star. The lower- intensity wings of the PSF, though, are often highly complex in their structure and subject to variability over short time scales. Spurious bright knots can occur among the secondary Airy maxima, and the 'waffle-mode' artifact may be problematic with a broad class of adaptive optics approaches. Good temporal stability of the adaptive-optic PSF is generally highly desirable if the full advantage of that spectacular PSF is to be realized; it is absolutely critical for many specific high resolution programs that can only be attempted with adaptive optics. In the course of commissioning the high-order adaptive optics system built at JPL for the Palomar 200-inch telescope, we have investigated PSF stability in the field under a variety of conditions. We discuss here our experimental findings at Palomar, and their implications for some key scientific programs.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Marsh, K. A.0000-0003-0107-7803
Oppenheimer, B. R.0000-0001-7130-7681
Additional Information:© 2000 Society of Photo-optical Instrumentation Engineers (SPIE). We thank Robert Brucato for useful discussions on numerous aspects of this project, and Hal Petrie for insights into the support mechanism for the 5 m primary.
Group:Infrared Processing and Analysis Center (IPAC)
Subject Keywords:adaptive optics, point-spread function, deconvolution
Series Name:Proceedings of SPIE
Issue or Number:4007
Record Number:CaltechAUTHORS:20181114-084026706
Persistent URL:
Official Citation:Eric E. Bloemhof, Kenneth Alan Marsh, Richard G. Dekany, Mitchell Troy, J. Marshall, Ben R. Oppenheimer, Thomas L. Hayward, Bernhard Rainer Brandl, "Stability of the adaptive-optic point spread function: metrics, deconvolution, and initial Palomar results," Proc. SPIE 4007, Adaptive Optical Systems Technology, (7 July 2000)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:90887
Deposited By: Tony Diaz
Deposited On:14 Nov 2018 18:45
Last Modified:16 Nov 2021 03:36

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