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Mid-infrared digital holography and holographic interferometry with a tunable quantum cascade laser.
Optics Letters, 2014Mid-infrared digital holography based on CO2 lasers has proven to be a powerful coherent imaging technique due to reduced sensitivity to mechanical vibrations, increased field of view, high optical power, and possible vision through scattering media, e.g.
M. Ravaro +10 more
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Flute vibrations by holographic interferometry
Applied Optics, 1990A compressed air ribbon is used in the experiment to excite the flute even without touching it and without introducing any stability problems. Good quality time-averaged holograms could be recorded.
P. Jessy Thomas +2 more
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Acoustic Holographic Interferometry
1974Following the advent of holography, a multitude of applications were suggested arising from the ability to reconstruct wavefronts. In holographic interferometry the ability of holograms to reproduce three dimensional images was exploited to obtain for the first time interferograms which revealed displacements of rough surfaces.
R. H. Pettey +3 more
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Holographic Interferometry Of Concrete
SPIE Proceedings, 1985The knowledge of the deformational behaviour of concrete is of major importance in the design of concrete constructions. This behaviour has so far only been verified under practical situations. One of the reasons therefore is, that the available mathematical models have been derived from a large number of experimental findings and are not applicable ...
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Holographic Interferometry: Then and Now
2018In the autumn of 1964, Robert L. Powell and I discovered holographic interferometry while working at the Radar Laboratory of the University of Michigan’s Institute of Science and Technology. I have worked in this field ever since, and I have watched it grow from an unexplored technology to a widespread industrial testing method, and I have contributed ...
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Electronic Processing for Holographic Interferometry
1987In many interferometric setups, heterodyne or quasi-heterodyne techniques have become a powerful tool for high accuracy interference fringe interpolation. In holographic interferometry, heterodyning has been applied to real time as well as to double-exposure holography. For double-exposure holography two reference beams are required.
Dändliker, R., Thalmann, R.
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Holographic Interferometry The Twentieth Anniversary
Optical Engineering, 1985Professor Ryszard Pryputniewicz of Worcester Polytechnic Institute has assembled a significant group of papers on the subject of holographic interferometry in celebration of the first twenty years of activity in this field. Several of these papers were received too late for inclusion in this issue but will be published as a group in the next issue of ...
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Holographic interferometry with the compact arrowhead holographic setup
Optics Letters, 2010A symmetric off-axis holographic setup, shaped as an arrowhead, which requires neither a collimator nor a beam splitter, is presented. It is applied to measure small perpendicular-to-surface displacements and deformations and the magnetostriction of a body by holographic interferometry.
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