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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 7 — Mar. 1, 2004
  • pp: 1463–1471

Normal-incidence efficiencies of multilayer-coated laminar gratings for the Extreme-Ultraviolet Imaging Spectrometer on the Solar-B mission

John F. Seely, Charles M. Brown, David L. Windt, Soizik Donguy, and Benjawan Kjornrattanawanich  »View Author Affiliations


Applied Optics, Vol. 43, Issue 7, pp. 1463-1471 (2004)
http://dx.doi.org/10.1364/AO.43.001463


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Abstract

The normal-incidence efficiencies of two laminar gratings and the reflectances of two parabolic mirrors with matching multilayer coatings were measured by monochromatic synchrotron radiation and were compared with modeling calculations. These optics were developed for the Extreme-Ultraviolet Imaging Spectrometer to be launched on the Japanese Solar-B mission. Each optic has two sectors coated with Mo/Si multilayers that reflect the 17–21-nm and 25–29-nm wave bands at normal incidence. The measured peak grating efficiencies are in the 8%–12% range and are in good agreement with efficiency calculations that account for the effects of groove profile and the microroughness as determined by atomic force microscopy.

© 2004 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(310.1620) Thin films : Interference coatings

History
Original Manuscript: August 31, 2003
Revised Manuscript: November 4, 2003
Published: March 1, 2004

Citation
John F. Seely, Charles M. Brown, David L. Windt, Soizik Donguy, and Benjawan Kjornrattanawanich, "Normal-incidence efficiencies of multilayer-coated laminar gratings for the Extreme-Ultraviolet Imaging Spectrometer on the Solar-B mission," Appl. Opt. 43, 1463-1471 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-7-1463

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