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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 29, Iss. 7 — Jul. 1, 2012
  • pp: 1417–1420

Variable distance absolute reflectometry

Stoyan C. Russev, Gichka G. Tsutsumanova, and Atanas N. Tzonev  »View Author Affiliations


JOSA A, Vol. 29, Issue 7, pp. 1417-1420 (2012)
http://dx.doi.org/10.1364/JOSAA.29.001417


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Abstract

In many interferometric applications the variation of the reflected light intensity due to the separation distance change between two optical systems is the raw signal from which some unknown parameters must be determined. We consider the general situation in which the signal offset and amplification, the initial separation, and the optical properties of one of the systems are unknown. Using some major results from the complex analysis we derive closed-form expressions that give the exact solution of the above inverse problem in terms of the signal’s Fourier coefficients. It is shown that the absolute reflectivity can be found unambiguously, while the initial separation and the reflectance phase are mutually correlated and one of these parameters can be found only if the other one is known.

© 2012 Optical Society of America

OCIS Codes
(120.1840) Instrumentation, measurement, and metrology : Densitometers, reflectometers
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5700) Instrumentation, measurement, and metrology : Reflection
(240.2130) Optics at surfaces : Ellipsometry and polarimetry

ToC Category:
Optics at Surfaces

History
Original Manuscript: April 17, 2012
Manuscript Accepted: June 4, 2012
Published: June 25, 2012

Citation
Stoyan C. Russev, Gichka G. Tsutsumanova, and Atanas N. Tzonev, "Variable distance absolute reflectometry," J. Opt. Soc. Am. A 29, 1417-1420 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-7-1417


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