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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 25 — Dec. 3, 2012
  • pp: 27650–27660

Hyperspectral all-sky imaging of auroras

Fred Sigernes, Yuriy Ivanov, Sergey Chernouss, Trond Trondsen, Alexey Roldugin, Yury Fedorenko, Boris Kozelov, Andrey Kirillov, Ilia Kornilov, Vladimir Safargaleev, Silje Holmen, Margit Dyrland, Dag Lorentzen, and Lisa Baddeley  »View Author Affiliations


Optics Express, Vol. 20, Issue 25, pp. 27650-27660 (2012)
http://dx.doi.org/10.1364/OE.20.027650


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Abstract

A prototype auroral hyperspectral all-sky camera has been constructed and tested. It uses electro-optical tunable filters to image the night sky as a function of wavelength throughout the visible spectrum with no moving mechanical parts. The core optical system includes a new high power all-sky lens with F-number equal to f/1.1. The camera has been tested at the Kjell Henriksen Observatory (KHO) during the auroral season of 2011/2012. It detects all sub classes of aurora above ~½ of the sub visual 1kR green intensity threshold at an exposure time of only one second. Supervised classification of the hyperspectral data shows promise as a new method to process and identify auroral forms.

© 2012 OSA

OCIS Codes
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(300.6550) Spectroscopy : Spectroscopy, visible
(350.1260) Other areas of optics : Astronomical optics
(350.6090) Other areas of optics : Space optics
(150.1488) Machine vision : Calibration

ToC Category:
Imaging Systems

History
Original Manuscript: September 7, 2012
Revised Manuscript: October 27, 2012
Manuscript Accepted: October 29, 2012
Published: November 29, 2012

Citation
Fred Sigernes, Yuriy Ivanov, Sergey Chernouss, Trond Trondsen, Alexey Roldugin, Yury Fedorenko, Boris Kozelov, Andrey Kirillov, Ilia Kornilov, Vladimir Safargaleev, Silje Holmen, Margit Dyrland, Dag Lorentzen, and Lisa Baddeley, "Hyperspectral all-sky imaging of auroras," Opt. Express 20, 27650-27660 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-25-27650


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References

  1. W. L. Wolfe, Introduction to Imaging Spectrometers (SPIE Press, 1997).
  2. F. Sigernes, D. A. Lorentzen, K. Heia, and T. Svenøe, “Multipurpose spectral imager,” Appl. Opt.39(18), 3143–3153 (2000). [CrossRef] [PubMed]
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