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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 29, Iss. 4 — Feb. 1, 1990
  • pp: 483–488

Design of a gradient refractive index phase zone plate for soft x-rays

Hisao Fujisaki and Nobuyuki Nakagiri  »View Author Affiliations


Applied Optics, Vol. 29, Issue 4, pp. 483-488 (1990)
http://dx.doi.org/10.1364/AO.29.000483


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Abstract

A new type of zone plate has been designed for soft x-rays, based on radial modulation of the refractive indices of the material. It is made with two materials; the concentration of one material increases gradually and that of the other decreases with increasing radius in each pair of zones. When such a zone plate is made with titanium and chromium and their concentrations are optimized for use at the wavelength of 2.74 nm, its x-ray focusing efficiency would be 34%. This value is 3.4 and 1.4 times the efficiencies of the Fresnel zone plate and the π-radian phase shifting zone plate, respectively.

© 1990 Optical Society of America

History
Original Manuscript: May 2, 1989
Published: February 1, 1990

Citation
Hisao Fujisaki and Nobuyuki Nakagiri, "Design of a gradient refractive index phase zone plate for soft x-rays," Appl. Opt. 29, 483-488 (1990)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-29-4-483

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