INVESTIGADORES
TEBALDI Myrian Cristina
artículos
Título:
Analysis of tilt by modulated speckles generated with a double aperture pupil mask
Autor/es:
MARTHA MOLINA; NESTOR BOLOGNINI; MYRIAN TEBALDI
Revista:
OPTICS COMMUNICATIONS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2015 vol. 338 p. 473 - 478
ISSN:
0030-4018
Resumen:
We present a method based on modulated speckles to detect tilt movement of a diffusing surface. In our proposal as peckle image of the speckle produced by a reflective diffusing surface is formed by a lens
having a double aperture. The double aperture yields to an interference process so that the resulting speckle distribution is fringe modulated. The tilting of the diffusing surface is mapped as a shifting of the
speckle. Then,the double aperture pupil lens system maps the speckle shifting into a fringes shifting.We study the system performance in terms of the diffuser tilt. Experimental results that confirm our proposal are presented.
