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Proceedings Paper

Real-time image sharpening without adaptive optics by on-chip tracking
Author(s): Gert Finger; Peter Biereichel; A. van Dijsseldonk; Manfred Meyer; Alan F. M. Moorwood
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Paper Abstract

A new non-destructive readout scheme for IR array detectors, which allows image sharpening by on chip tracking has been tested with the ESO IR array camera IRAC2. This camera is equipped with a large format NICMOS3 256*256 MCT array detector. The effect of the readout algorithm is equivalent to a first order wavefront correction of images degraded by atmospheric seeing. Correction is performed in real time for long on chip detector integrations. Results obtained at a 2.2 m telescope on the pre main sequence binary star S CrA, the Circinus galaxy and the cluster NGC3603 will be presented. Possible applications of this method at large 8 m telescopes will be discussed.

Paper Details

Date Published: 1 June 1994
PDF: 11 pages
Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); doi: 10.1117/12.176738
Show Author Affiliations
Gert Finger, European Southern Observatory (Germany)
Peter Biereichel, European Southern Observatory (Germany)
A. van Dijsseldonk, European Southern Observatory (Germany)
Manfred Meyer, European Southern Observatory (Germany)
Alan F. M. Moorwood, European Southern Observatory (Germany)


Published in SPIE Proceedings Vol. 2198:
Instrumentation in Astronomy VIII
David L. Crawford; Eric R. Craine, Editor(s)

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