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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 7 — Mar. 1, 2001
  • pp: 1138–1146

Total-Light Imager with Flat Spectral Response for Solar Photometric Measurements

Peter Foukal and Scott Libonate  »View Author Affiliations


Applied Optics, Vol. 40, Issue 7, pp. 1138-1146 (2001)
http://dx.doi.org/10.1364/AO.40.001138


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Abstract

Certain applications in imaging photometry and radiometry require a telescope–detector system with (preferably constant) response over a wide spectral range from the ultraviolet through the infrared. We describe the design and characterization of the Solar Bolometric Imager (SBI), a 30-cm-aperture Dall–Kirkham telescope combined with a gold-blacked, 80, 000-element thermal array detector. Our SBI prototype provides spectrally uniform imaging in total solar light (0.28–2.6 μm) of heat-flow inhomogeneities at the solar photosphere, with better than 5-arc sec angular resolution over a 6.5 × 13 arc min field of view. A balloon-borne SBI would avoid most atmospheric transmission variation over this spectral range, enabling accurate study of the sources of total irradiance variation.

© 2001 Optical Society of America

OCIS Codes
(040.1240) Detectors : Arrays
(120.5240) Instrumentation, measurement, and metrology : Photometry
(350.1260) Other areas of optics : Astronomical optics
(350.1270) Other areas of optics : Astronomy and astrophysics
(350.6090) Other areas of optics : Space optics

Citation
Peter Foukal and Scott Libonate, "Total-Light Imager with Flat Spectral Response for Solar Photometric Measurements," Appl. Opt. 40, 1138-1146 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-7-1138


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References

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  2. R. Wood, in Uncooled Infrared Imaging Arrays and Systems, P. Kruse and D. Skatrud, eds., Vol. 47 of Semiconductors and Semimetals Series (Academic, New York, 1997), Chap. 3, pp. 45–119.
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