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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 11 — Apr. 10, 1997
  • pp: 2427–2431

Holographic profilometry with a rhodium-doped barium titanate crystal and a diode laser

James E. Millerd and Neal J. Brock  »View Author Affiliations


Applied Optics, Vol. 36, Issue 11, pp. 2427-2431 (1997)
http://dx.doi.org/10.1364/AO.36.002427


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Abstract

We present a novel, whole-field, noncontact profilometer based on real-time, two-color contour holography. A single 30-mW laser diode was used to record a hologram in a BaTiO3:Rh crystal, and the reconstructed image was interfered with the real-time object wave. Current modulation of the diode laser produced continuously tunable contour intervals. The resulting interferograms were processed by use of phase-shift interferometry algorithms to yield quantitative, three-dimensional measurements of the original object. We demonstrate submillimeter depth resolution and show how resolution and speed can be further improved.

© 1997 Optical Society of America

History
Original Manuscript: October 25, 1996
Revised Manuscript: October 25, 1996
Published: April 10, 1997

Citation
James E. Millerd and Neal J. Brock, "Holographic profilometry with a rhodium-doped barium titanate crystal and a diode laser," Appl. Opt. 36, 2427-2431 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-11-2427

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