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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 9 — Mar. 20, 1999
  • pp: 1709–1713

Method for characterization of filter radiometers

Pasi Toivanen, Farshid Manoochehri, Petri Kärhä, Erkki Ikonen, and Antti Lassila  »View Author Affiliations


Applied Optics, Vol. 38, Issue 9, pp. 1709-1713 (1999)
http://dx.doi.org/10.1364/AO.38.001709


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Abstract

We have developed a new method for characterizing the irradiance responsivity of filter radiometers. The method is based on a spatially uniform, known irradiance, generated by combining several identical laser beams. The measurement setup and the experimental demonstration at one wavelength are presented. The diffraction correction related to the generated irradiance is studied experimentally. The uncertainty analysis of the method indicates a relative standard uncertainty of 1 × 10-3. The results with the new method are compared with the characterization measurements based on our present spectral-irradiance scale. The results have a relative deviation of 1 × 10-3, which is well within the combined standard uncertainty of the comparison.

© 1999 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(050.1940) Diffraction and gratings : Diffraction
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(350.5610) Other areas of optics : Radiation

History
Original Manuscript: April 14, 1998
Revised Manuscript: November 25, 1998
Published: March 20, 1999

Citation
Pasi Toivanen, Farshid Manoochehri, Petri Kärhä, Erkki Ikonen, and Antti Lassila, "Method for characterization of filter radiometers," Appl. Opt. 38, 1709-1713 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-9-1709

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