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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 20 — Jul. 10, 2014
  • pp: 4532–4538

Holographic radius test plates for spherical surfaces with large radius of curvature

Quandou Wang, Ulf Griesmann, and Johannes A. Soons  »View Author Affiliations


Applied Optics, Vol. 53, Issue 20, pp. 4532-4538 (2014)
http://dx.doi.org/10.1364/AO.53.004532


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Abstract

We describe a novel interferometric method, based on nested Fresnel zone lenses or photon sieves, for testing and measuring the radius of curvature of precision spherical surfaces that have radii in a range between several meters and a few hundred meters. We illustrate the measurement concept with radius measurements of a spherical mirror with a radius of about 10 m. The measured radius is 9877mm±10mm for a coverage factor k=2. Our measurements also demonstrate, for the first time to the best of our knowledge, the utility of photon sieves for precision surface metrology because they diffuse higher diffraction orders of computer generated holograms, which reduces coherent noise.

OCIS Codes
(220.4840) Optical design and fabrication : Testing
(050.1965) Diffraction and gratings : Diffractive lenses

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: April 8, 2014
Revised Manuscript: May 23, 2014
Manuscript Accepted: May 27, 2014
Published: July 9, 2014

Citation
Quandou Wang, Ulf Griesmann, and Johannes A. Soons, "Holographic radius test plates for spherical surfaces with large radius of curvature," Appl. Opt. 53, 4532-4538 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-20-4532

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