Please use this identifier to cite or link to this item: http://cio.repositorioinstitucional.mx/jspui/handle/1002/542
Very High Speed Cw Digital Holographic Interferometry
CARLOS PEREZ LOPEZ
MANUEL HUMBERTO DE LA TORRE IBARRA
FERNANDO MENDOZA SANTOYO
Acceso Abierto
Atribución-NoComercial-SinDerivadas
It is reported for the first time the use of a very high speed camera in digital holographic interferometry with an out of plane sensitivity setup. The image plane holograms of a spherical latex balloon illuminated by a cw laser were acquired at a rate of 4000 frames per second, representing a time spacing between holograms of 250 microseconds, for 512 x 512 pixels at 8 bits resolution. Two types of tests were accomplished for a proof of principle of the technique, one with no constrains on the object which meant random movements due to non controlled environmental air currents, and the other with specific controlled conditions on the object. Results presented correspond to a random sample of sequential digital holograms, chosen from a 1 second exposure, individually Fourier processed in order to perform the usual comparison by subtraction between consecutive pairs thus obtaining the phase map of the object out of plane displacement, shown as a movie.
OSA PUBLISHING
16-10-2006
Artículo
CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA
Appears in Collections:Artículos arbitrados 2006

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