Results 101 to 110 of about 190,665 (333)
Separate reference beam holographic interferometry and its application to the measurement of small phase variations in sub-fringe systems [PDF]
Application of separate reference beam holographic interferometry for measurement of small phase variations in sub-fringe ...
Testerman, M. K.
core +1 more source
Coherent microscopy and optical coherence tomography for biomedical applications [PDF]
, 2011 This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
3rd Micro and Nano Flows Conference (MNF2011) +1 more
core
Digital off-axis holographic interferometry with simulated wavefront.
Optics Express, 2014 The paper presents a novel algorithm based on digital holographic interferometry and being promising for evaluation of phase variations from highly noisy or modulated by speckle-structures digital holograms.
A. Belashov, N. Petrov, I. Semenova
semanticscholar +1 more source
Digital Holographic Interferometry for Micro-Deformation Analysis of Morpho Butterfly Wing
PhotonicsIn this study, we present an analysis of deflections in a Morpho butterfly wing using digital holographic interferometry (DHI). Our methodology revolves around an off-axis lensless Fourier holographic setup, using laser excitation to induce deflections ...
Ali Mardan Dezfouli +4 more
doaj +1 more source
SoftwareX, 2021 Fringe projection profilometry and off-axis digital holographic interferometry are two techniques commonly used for non-contact optical surface measurement and movement tracking; however, they can be difficult to implement due to the complex software ...
Parsa Omidi +4 more
doaj
Pulsatile microvascular blood flow imaging by short-time Fourier transform analysis of ultrafast laser holographic interferometry [PDF]
arXiv, 2015 We report on wide-field imaging of pulsatile microvascular blood flow in the exposed cerebral cortex of a mouse by holographic interferometry. We recorded interferograms of laser light backscattered by the tissue, beating against an off-axis reference beam with a 50 kHz framerate camera.
arxiv
Analysis of holographic interferograms of aerodynamic models in a wind tunnel [PDF]
Holographic interferometry provides a non-invasive technique for estimating variations in the air density distribution around aerodynamic models in wind tunnels.
Perry, R. L.
core +1 more source
Studies on vibration of some rib-stiffened cantilever plates [PDF]
, 1977 The vibrational mode shapes and frequencies of rib-stiffened skew cantilever plates as determined by holographic interferometry are given. The effects of varying the sweep back angle, rib stiffness and aspect ratio are studied along with the influence of
Guruswamy, P +3 more
core
Scarring in vibrational modes of thin metal plates [PDF]
arXiv, 2000 We report the first direct experimental observation of scarring phenomenon in transverse vibrational modes of a thin metal plate. The plate has the shape of a full stadium and clamped boundary conditions. Normal modes are imaged using time-averaged holographic interferometry, and modes corresponding to ``bouncing ball'' and higher order periodic ...
arxiv
Advances in Materials Science and Engineering, 2018 Detection of the crack in an object is a critical problem for the health monitoring of a transparent object. The real-time and quantitative measurement of the crack-tip stress intensity factor (SIF) remains an open issue.
Haiting Xia +3 more
doaj +1 more source