Results 1 to 10 of about 51,147 (228)
Roadmap on Digital Holography-Based Quantitative Phase Imaging [PDF]
Journal of Imaging, 2021 Quantitative Phase Imaging (QPI) provides unique means for the imaging of biological or technical microstructures, merging beneficial features identified with microscopy, interferometry, holography, and numerical computations.
Vinoth Balasubramani +16 more
doaj +2 more sources
Shot Noise in Digital Holography [PDF]
Information Optics and Photonics: Algorithms, Systems, and
Applications (2010) 163, 2012 We discuss on noise in heterodyne holography in an off-axis configuration. We show that, for a weak signal, the noise is dominated by the shot noise on the reference beam. This noise corresponds to an equivalent noise on the signal beam of one photoelectron per pixel, for the whole sequence of images used to build the digital hologram.
Joud, Fadwa +4 more
arxiv +8 more sources
Intelligent Detection and Recognition of Marine Plankton by Digital Holography and Deep Learning [PDF]
SensorsThe detection, observation, recognition, and statistics of marine plankton are the basis of marine ecological research. In recent years, digital holography has been widely applied to plankton detection and recognition.
Xianfeng Xu +3 more
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Digital Holography Data Compression [PDF]
Telfor Journal, 2019 Digital holography processing is a research topic related to the development of novel visual immersive applications. The huge amount of information conveyed by a digital hologram and the different properties of holographic data with respect to ...
R. Corda
doaj +4 more sources
Digital holography with microcombs [PDF]
EPJ Web of Conferences, 2023 Optical microresonators are attractive comb sources due to their small form factor and stable broad optical spectra. We report on the first demonstration of microcomb-based digital holography.
Amann Stephan +7 more
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Imaging analysis of digital holography
Optics Express, 2005 In this study we focus on understanding the system imaging mechanisms given rise to the unique characteristic of discretization in digital holography. Imaging analysis with respect to the system geometries is investigated and the corresponding requirements for reliable holographic imaging are specified.
Lei Xu +4 more
openalex +4 more sources
Digital holography with ultimate sensitivity [PDF]
Optics Letters, 2007 3 ...
M. Groß, Michaël Atlan
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Digital in-line holography in thick optical systems: application to visualization in pipes [PDF]
Applied Optics 47 (2008) 4147, 2012 In this paper we apply digital in-line holography to image opaque objects through a thick plano-concave pipe. Opaque fibers and opaque particles are considered}. Analytical expression of the intensity distribution in the CCD sensor plane is derived using generalized Fresnel transform. \textbf{The proposed model has the ability to deal with various pipe
Nicolas Verrier +3 more
arxiv +3 more sources
XUV digital in-line holography using high-order harmonics [PDF]
, 2007 A step towards a successful implementation of timeresolved digital in-line holography with extreme ultraviolet radiation is presented. Ultrashort XUV pulses are produced as high-order harmonics of a femtosecond laser and a Schwarzschild objective is used to focus harmonic radiation at 38 nm and to produce a strongly divergent reference beam for ...
Guillaume Genoud +7 more
arxiv +3 more sources
Femtosecond imaging with digital holography [PDF]
SPIE Proceedings, 2006 We describe a holographic technique capable of sampling dynamic events at 150 femtosecond time resolution. We apply the technique to the study of the nonlinear propagation of high energy pulses through gas and condensed media. The holograms are recorded as a digitized image from a CCD camera and reconstructed numerically to retrieve the refractive ...
Ye Pu, Martin Centurion, Demetri Psaltis
openalex +6 more sources