Results 61 to 70 of about 51,169 (250)

Single-pixel digital "ghost" holography [PDF]

Physical Review A 86, 041803(R),2012, 2013
Since its discovery, the "ghost" diffraction phenomenon has emerged as a non-conventional technique for optical imaging with very promising advantages. However, extracting intensity and phase information of a structured and realistic object remains a challenge.
arxiv   +1 more source

A Physics‐Informed Neural Network as a Digital Twin of Optically Turbid Media

Advanced Intelligent Systems, EarlyView.
In this work, a physics‐informed neural network is presented as a digital twin for modeling and studying optically turbid media without requiring reference light. The model learns and integrates complex wavefront modulation behavior, ensuring robustness without explicit calibration.
Mohammadrahim Kazemzadeh, Liam Collard, Linda Piscopo, Massimo De Vittorio, Ferruccio Pisanello   +4 more
wiley   +1 more source

Two-wavelength digital holography through fog

Journal of the European Optical Society-Rapid Publications, 2023
Interferometric detection enables the acquisition of the amplitude and phase of the optical field. By making use of the synthetic wavelength as a computational construct arising from digital processing of two off-axis digital holograms, it is possible to
Gröger Alexander, Pedrini Giancarlo, Fischer Felix, Claus Daniel, Aleksenko Igor, Reichelt Stephan   +5 more
doaj   +1 more source

Advanced Contactless Bioassembly Approaches: Leveraging Sound, Optical, and Magnetic Fields

Advanced NanoBiomed Research, EarlyView.
This review explores innovative contactless bioassembly techniques driven by sound, light, and magnetic fields, which enable the precise organization of cells, biomaterials, and bioactive substances into complex 3D structures. These technologies, crucial for in vitro modeling and regenerative medicine, are examined in detail, highlighting their ...
Micaela Natta, Greta Cocchi, Riccardo Tognato, Alessandro Cianciosi, Tiziano Serra   +4 more
wiley   +1 more source

Measurements of the Characteristics of Transparent Material Using Digital Holography

Advances in Materials Science and Engineering, 2013
Digital holography is applied to measure the characteristics of transparent material. A digital hologram recording system to measure the surface of transparent material was established, and the digital holograms of transparent object were obtained in ...
Ding Yu, Shang Wenbin, Yang Hong, Yang Yan   +3 more
doaj   +1 more source

Acousto-optically driven lensless single-shot ultrafast optical imaging

Light: Science & Applications, 2022
We demonstrate a versatile and user-friendly ultrafast single-shot imaging technique based on a simple and flexible acousto-optics spectro-temporal shaping stage combined with digital in-line holography.
Mohamed Touil, Saïd Idlahcen, Rezki Becheker, Denis Lebrun, Claude Rozé, Ammar Hideur, Thomas Godin   +6 more
doaj   +1 more source

Direct Inversion of Digital 3D Fraunhofer Holography Maps [PDF]

, 2015
The Differential Fourier Holography (DFH) gives an exact mathematical solution of the inverse problem of diffraction in the Fraunhofer regime. After the first publication [1] the Differential Fourier Holography was successfully applied in many experiments to obtain amplitude and phase information about two-dimensional (2D) images.
arxiv   +1 more source

Stimuli‐Configuring Anisotropic Soft Architectures towards Dynamic Manipulable Photonics

Advanced Physics Research, EarlyView.
This review covers stimuli‐responsive liquid crystal micro/nano‐structures, focusing on their properties, advancements, and applications in photonics. It discusses electric, light, temperature, and mechanical stimuli, highlighting innovative applications in optics, sensing, information processing and so on so forth, emphasizing liquid crystal ...
Xiaoqian Wang, Zhi‐Gang Zheng
wiley   +1 more source

Portable Filter-Free Lens-Free Incoherent Digital Holography System

Photonics
A portable incoherent digital holography system without a polarization filter or a refractive lens was developed. Phase-shifted self-interference incoherent holograms of light diffracted from an object were generated without attenuation due to a ...
Tatsuki Tahara
doaj   +1 more source

Application of Infrared Digital Holography for Characterization of Inhomogeneities and Voluminous Defects of Single Crystals on the Example of ZnGeP₂

Applied Sciences, 2020
In this work, the method of IR digital holography intended for detection of volumetric defects in ZnGeP2 single crystals has been tested. The holographic method is verified by a comparison of the results obtained with the data obtained by other methods ...
Victor Dyomin, Alexander Gribenyukov, Sergey Podzyvalov, Nikolay Yudin, Mikhail Zinoviev, Igor Polovtsev, Alexandra Davydova, Alexey Olshukov   +7 more
doaj   +1 more source