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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 30 — Oct. 20, 2008
  • pp: 5570–5584

Interferometric null test of a deep parabolic reflector generating a Hertzian dipole field

Gerd Leuchs, Klaus Mantel, Andreas Berger, Hildegard Konermann, Markus Sondermann, Ulf Peschel, Norbert Lindlein, and Johannes Schwider  »View Author Affiliations


Applied Optics, Vol. 47, Issue 30, pp. 5570-5584 (2008)
http://dx.doi.org/10.1364/AO.47.005570


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Abstract

We report on interferometric characterization of a deep parabolic mirror with a depth of more than five times its focal length. The interferometer is of Fizeau type; its core consists of the mirror itself, a spherical null element, and a reference flat. Because of the extreme solid angle produced by the paraboloid, the alignment of the setup appears to be very critical and needs auxiliary systems for control. Aberrations caused by misalignments are removed via fitting of suitable functionals provided by means of ray tracing simulations. It turns out that the usual misalignment approximations fail under these extreme conditions.

© 2008 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(220.4840) Optical design and fabrication : Testing
(260.0260) Physical optics : Physical optics

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: July 3, 2008
Revised Manuscript: September 9, 2008
Manuscript Accepted: September 12, 2008
Published: October 13, 2008

Citation
Gerd Leuchs, Klaus Mantel, Andreas Berger, Hildegard Konermann, Markus Sondermann, Ulf Peschel, Norbert Lindlein, and Johannes Schwider, "Interferometric null test of a deep parabolic reflector generating a Hertzian dipole field," Appl. Opt. 47, 5570-5584 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-30-5570

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