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Proceedings Paper

Results of a pnCCD detector system for high-speed optical imaging
Author(s): Robert Hartmann; Sebastian Deires; Mark Downing; Hubert Gorke; Sven Herrmann; Sebastian Ihle; Gottfried Kanbach; Janis Papamastorakis; Heike Soltau; Alexander Stefanescu; Lothar Strüder
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Paper Abstract

We present the design and optical imaging performance of a pnCCD detector system for highest frame rates and excellent sensitivity over a wide wavelength range from the UV to near IR region. To achieve frame rates higher than one thousand frames per second with an exceptionally low noise level, the devices are based on proven technology with column parallel readout and operated in a split-frame transfer mode. The CCDs are back illuminated and coated with an Anti-Reflective- Coating. The sensitivity over their full thickness of 450 &mgr;m allows for a quantum efficiency near 100% over a wide spectral range. At an optical test bench we determined the photon transfer curve, quantum efficiency and point-spread function within a wavelength region between 300 nm to 1100 nm for various detector parameter. To demonstrate the ability of a pnCCD to perform high-speed optical differential photometry, the crab nebula with the crab pulsar as central object were observed at the 1.3m SKINAKAS telescope on crete. For these observations the pnCCD was operated at a speed of 2000 frames per second. The high speed, low noise and high quantum efficiency makes this detector an ideal instrument to be used as a wavefront sensor in adaptive optics systems.

Paper Details

Date Published: 17 July 2008
PDF: 11 pages
Proc. SPIE 7015, Adaptive Optics Systems, 70155C (17 July 2008); doi: 10.1117/12.789714
Show Author Affiliations
Robert Hartmann, PNSensor GmbH (Germany)
MPI Halbleiterlabor (Germany)
Sebastian Deires, European Southern Observatory (Germany)
Mark Downing, European Southern Observatory (Germany)
Hubert Gorke, Forschungszentrum Jülich (Germany)
Sven Herrmann, Max-Planck-Institut für extraterrestrische Physik (Germany)
MPI Halbleiterlabor (Germany)
Sebastian Ihle, PNSensor GmbH (Germany)
MPI Halbleiterlabor (Germany)
Gottfried Kanbach, Max-Planck-Institut für extraterrestrische Physik (Germany)
Janis Papamastorakis, Univ. of Crete (Greece)
Heike Soltau, PNSensor GmbH (Germany)
MPI Halbleiterlabor (Germany)
Alexander Stefanescu, Max-Planck-Institut für extraterrestrische Physik (Germany)
Lothar Strüder, Max-Planck-Institut für extraterrestrische Physik (Germany)
MPI Halbleiterlabor (Germany)

Published in SPIE Proceedings Vol. 7015:
Adaptive Optics Systems
Norbert Hubin; Claire E. Max; Peter L. Wizinowich, Editor(s)

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