Theoretical Measurement Uncertainty of White-Light Interferometry on Rough Surfaces
Applied Optics, Vol. 42, Issue 10, pp. 1809-1813 (2003)
http://dx.doi.org/10.1364/AO.42.001809
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Abstract
A great advantage of the white-light interferometry is that it can be used for profile measurement of objects with a rough surface. A speckle pattern that arises in the image plane allows one to observe the interference; however, this pattern is also the source of the measurement uncertainty. We derive the theoretical limits of the longitudinal uncertainty by virtue of the first-order statistics of the speckle pattern. It is shown that this uncertainty depends on the surface roughness of the measured object only; it does not depend on the setup parameters.
© 2003 Optical Society of America
[Optical Society of America ]
OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(030.6600) Coherence and statistical optics : Statistical optics
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
Citation
Pavel Pavliček and Jan Soubusta, "Theoretical Measurement Uncertainty of White-Light Interferometry on Rough Surfaces," Appl. Opt. 42, 1809-1813 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-10-1809
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