CIFASIS 20631
CENTRO INTERNACIONAL FRANCO ARGENTINO DE CIENCIAS DE LA INFORMACION Y DE SISTEMAS
Unidad Ejecutora - UE
artículos
Título:
Simplified phase recovery method in temporal speckle pattern interferometry
Autor/es:
ETCHEPAREBORDA, P.; BIANCHETTI, A.; VADNJAL, A. L.; FEDERICO, A.; KAUFMANN, G. H.
Revista:
APPLIED OPTICS
Editorial:
OPTICAL SOC AMER
Referencias:
Lugar: Washington; Año: 2014 vol. 53 p. 7120 - 7128
ISSN:
0003-6935
Resumen:
A simplified method for object phase recovering is implemented in temporal speckle pattern interferometrywhen the employed interferometer admits the introduction of a temporal carrier, and the well-knowntwo-beam interferometry equation is verified. The spatiotemporal evolution of the object phase is isolatedby modulating the acquired interferometric intensity signals with a known temporal carrier in order tocarry out its analysis by using a bivariate empirical mode decomposition framework that avoids the applicationof the Hilbert transform, which is not suitable for intensity signals with abrupt fluctuations.The advantages and limitations of this technique are analyzed and discussed by comparing computationtime and phase recovery capability with well-known phase-retrieval methods by means of numericalsimulations and experimental data.
