CIOP   05384
CENTRO DE INVESTIGACIONES OPTICAS
Unidad Ejecutora - UE
artículos
Título:
Vortex Analysis in Dynamic Speckle Images
Autor/es:
G. H. SENDRA, H. RABAL, R. ARIZAGA, M. TRIVI
Revista:
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
Editorial:
OSA
Referencias:
Año: 2009 vol. 26 p. 2634 - 2639
ISSN:
0740-3232
Resumen:
Optical vortex analysis has become an important tool in optical metrology. It has been shown to be able to measure small displacements with up to nanometric precision. In this paper we analyze optical vortex behavior in dynamic speckle patterns with boiling phenomenon. We first study translational patterns with boiling and we find the limitations of the optical vortex metrology. Pure boiling patterns were also evaluated and we found a quantitative descriptor for the activity. We also observed that vortices exhibit a Brownian motion in pure boiling patterns. Numerical and experimental results are shown.