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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 31 — Nov. 1, 2001
  • pp: 5565–5574

High-efficiency MoRu–Be multilayer-coated gratings operating near normal incidence in the 11.1–12.0-nm wavelength range

John F. Seely, Claude Montcalm, Sherry Baker, and Saša Bajt  »View Author Affiliations


Applied Optics, Vol. 40, Issue 31, pp. 5565-5574 (2001)
http://dx.doi.org/10.1364/AO.40.005565


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Abstract

MoRu–Be multilayer coatings were applied to two diffraction gratings for the purpose of enhancing their normal-incidence efficiency in the 11.1–12.0-nm wavelength range. The grating substrates were replicas of a holographic master grating that had a blazed groove profile with 2400 grooves/mm and a 2-m radius of curvature. The relatively low average microroughness (0.8 nm) of the grating surfaces contributed to the relatively high groove efficiency of the grating substrates and the reflectance of the MoRu–Be multilayer coatings. The peak efficiency, measured with synchrotron radiation, was 10.4% in the second diffraction order at a wavelength of 11.37 nm.

© 2001 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(310.6860) Thin films : Thin films, optical properties
(340.7470) X-ray optics : X-ray mirrors

History
Original Manuscript: October 6, 2000
Revised Manuscript: June 15, 2001
Published: November 1, 2001

Citation
John F. Seely, Claude Montcalm, Sherry Baker, and Saša Bajt, "High-efficiency MoRu–Be multilayer-coated gratings operating near normal incidence in the 11.1–12.0-nm wavelength range," Appl. Opt. 40, 5565-5574 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-31-5565

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