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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 34, Iss. 31 — Nov. 1, 1995
  • pp: 7347–7354

Polarization and efficiency of a concave multilayer grating in the 135–250-Å region and in normal-incidence and Seya–Namioka mounts

J. F. Seely, R. G. Cruddace, M. P. Kowalski, W. R. Hunter, T. W. Barbee, Jr., J. C. Rife, R. Eby, and K. G. Stolt  »View Author Affiliations


Applied Optics, Vol. 34, Issue 31, pp. 7347-7354 (1995)
http://dx.doi.org/10.1364/AO.34.007347


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Abstract

A molybdenum/silicon multilayer coating was applied to a holographic ion-etched blazed grating substrate that had 2400 grooves/mm and a radius of curvature of 2.2 m. Scanning probe microscopy yielded the same surface microroughness (5 Å rms) before and after deposition of the multilayer. The efficiency and polarization performance of the grating was measured by synchrotron radiation in the 135–250-Å wavelength region. In the second grating order and the second Bragg order of the multilayer coating, the peak normal-incidence efficiency was 7.5% at a wavelength of 147 Å, representing a groove efficiency of 27%. At an angle of incidence of 35°, the polarization performance of the grating was 95%–100% in the 210–250-Å wavelength region. In a Seya–Namioka spectrometer mount at an angle of incidence of 30°–40°, the grating is a nearly perfect polarizing optical element in the wavelength bands between 125 and 300 Å, which are covered by the multilayer coating.

© 1995 Optical Society of America

History
Original Manuscript: March 27, 1995
Revised Manuscript: June 14, 1995
Published: November 1, 1995

Citation
J. F. Seely, R. G. Cruddace, M. P. Kowalski, W. R. Hunter, T. W. Barbee, J. C. Rife, R. Eby, and K. G. Stolt, "Polarization and efficiency of a concave multilayer grating in the 135–250-Å region and in normal-incidence and Seya–Namioka mounts," Appl. Opt. 34, 7347-7354 (1995)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-34-31-7347

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