Lucky interferometry for displacement measurement

Bogdan Flo Ionita; Petre-Catalin C. Logofatu; Dan Apostol

doi:10.1117/1.3264960

1 November 2009 Lucky interferometry for displacement measurement

Bogdan Flo Ionita, Petre-Catalin C. Logofatu, Dan Apostol

Author Affiliations +

Optical Engineering, Vol. 48, Issue 11, 115602 (November 2009). https://doi.org/10.1117/1.3264960

Abstract

We extrapolated the lucky imaging technique, mostly used in astronomy, to the field of interferometry for displacement measurement. From the batch of interferograms generated by a Twyman-Green-type interferometer and acquired by a CCD camera, those with high overall contrast were selected and fitted to a sinusoidal function. The high-contrast interferograms showed a significantly lower dispersion and, consequently, a lower uncertainty of the measured displacement.

©(2009) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Bogdan Flo Ionita, Petre-Catalin C. Logofatu, and Dan Apostol "Lucky interferometry for displacement measurement," Optical Engineering 48(11), 115602 (1 November 2009). https://doi.org/10.1117/1.3264960

Published: 1 November 2009

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