J
José A. Ferrari
Researcher at University of the Republic
Publications - 133
Citations - 1454
José A. Ferrari is an academic researcher from University of the Republic. The author has contributed to research in topics: Interferometry & Image processing. The author has an hindex of 19, co-authored 132 publications receiving 1297 citations. Previous affiliations of José A. Ferrari include Simón Bolívar University.
Papers
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Robust one-beam interferometer with phase-delay control.
TL;DR: In this paper, a robust one-beam interferometer with external phase-delay control is described, where the two arms are together in one collimated beam, and an additional phase delay is introduced by application of an electrical current to the Faraday rotator or by rotation of the polarizer (the latter being of topological origin).
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Color encoding of binary fringes for gamma correction in 3-D profiling.
Gastón A. Ayubi,J. Matías Di Martino,Julia R. Alonso,Ariel Fernández,Jorge L. Flores,José A. Ferrari +5 more
TL;DR: A fringe generation technique that consists of projecting and acquiring a temporal sequence of strictly binary color patterns, whose (adequately weighted) average leads to sinusoidal fringe patterns with the required number of bits, which allows for a reliable three-dimensional profile using a PSI-algorithm.
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Phase retrieval from one partial derivative.
J. Matías Di Martino,Jorge L. Flores,Franz Pfeiffer,Kai Scherer,Gastón A. Ayubi,José A. Ferrari +5 more
TL;DR: It is demonstrated that only one partial derivative often suffices to recover the phase, and it is discussed under which conditions that is possible.
Journal ArticleDOI
One-beam interferometer by beam folding.
José A. Ferrari,Erna Frins +1 more
TL;DR: A novel one-beam interferometer based on beam folding with phase-delay control achieved by application of an electrical potential to a Pockels cell, which permits the use of techniques of phase-stepping interferometry.
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Polarization-shifting method for step interferometry
TL;DR: In this article, a phase step interferometry system using polarization shifting is described, which is essentially a Mach-Zehnder interferometer in which the polarization of light travelling through one arm is orthogonal to the polarization travelling through the other arm.