Results 61 to 70 of about 3,717 (174)

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, Xiaoyuan, Peng, Zhixiong, Guo, Jianmin, Miao, Anand, Asundi   +4 more
openaire   +2 more sources

Interferometric Near‐Field Scanning Optical Microscopy via Phase Conjugation of a Multimode Fiber Probe

Nanophotonics, Volume 15, Issue 20, 27 October 2026.
A multimode fiber probe collects far more of the near field than a single‐mode one, but scrambles the phase into speckle. Phase conjugation on a spatial light modulator restores the wavefront, concentrating the signal up to 165‐fold at a single detector pixel and recovering the full phase of propagating surface plasmon polaritons where conventional ...
Juntaek Oh, Young‐Ho Jin, Sungsam Kang, Myung‐Ki Kim, Wonshik Choi   +4 more
wiley   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

Advanced Engineering Materials, Volume 28, Issue 20, 21 October 2026.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ, Jörg Hohe, Martin Kördel, Michael Giese, Niklas Toffert, Christian Seidel, Olaf Rehme, Patrik Schneider, Oliver Focke, Elie Abi Aoun, Claas Falldorf, Beñat Gutierrez, Alexandra Kühn, Sven Torstrick-von der Lieth, Christoph Herden, Erik Johannsen, Jan‐Uwe R. Schmidt, Felix Winkelmann, Andreas Schott, Daniel Schott   +19 more
wiley   +1 more source

Zooming algorithms for Digital Holography

Journal of Physics: Conference Series, 2010
Digital Holography is an imaging modality made up of two parts: (i) Recording an interference pattern on a CCD, where an object wave field and a known reference wave are coincident and extracting the complex object wave field from this interference pattern and (ii) Replaying or reconstructing the hologram on a computer by simulating the propagation of ...
Hennelly, Bryan M., Kelly, Damien, Pandey, Nitesh, Monaghan, David   +3 more
openaire   +2 more sources

Programmable Multidimensional Diffraction Engineering via an Optically Addressed Nested Fourier Metasurface

Nanophotonics, Volume 15, Issue 19, 13 October 2026.
An optically addressed nested Fourier metasurface is presented for programmable multidimensional diffraction routing without electrical interconnects. Local Fourier‐mode engineering combined with global superlattice diffraction enables on‐demand reconfigurable routing.
Jing Guo, Qinglei Zhao, Jingrui Yang, Zongyi Liu, Mingdong Zhu, Shuai Liu, Chao Li, Shuxin Wang, Qinglong Hu, Fengwei Guan, Qiang Liu, Qi Song   +11 more
wiley   +1 more source

Backscatter digital holography of microparticles

Optics Express, 2013
This work investigates a method for digital holographic imaging of microparticles. Traditional digital holographic techniques use a particle's forward scattered light to form the hologram, whereas here we use the backscattered light. Images of a particle are then computationally reconstructed from the backscatter hologram, and several examples of such ...
Nava R, Subedi, Nicholas B, Fowler, Matthew J, Berg   +2 more
openaire   +2 more sources

Seeing the invisible: Digital holography

European Mathematical Society Magazine, 2022
For the past years there has been an increasing interest in developing mathematical and computational methods for digital holography. Holographic techniques furnish noninvasive tools for high-speed 3D live cell imaging. Holograms can be recorded in the millisecond or microsecond range without damaging samples.
openaire   +3 more sources

Digital Holography and Cell Studies

, 2011
Digital holography microscopy (DHM) has developed into a broad field, and one of all the interesting applications is to study cells without staining, labeling or in any other way affecting them. Both fixed and living, dying or dead cells can be studied. The first DHM images showing living cells were published in 2004 and 2005 (Carl et al. 2004, Marquet
Alm, Kersti, Cirenajwis, Helena, Gisselsson, Lennart, Gjörloff Wingren, Anette, Janicke, Birgit, Mölder, Anna, Oredsson, Stina, Persson, Johan   +7 more
openaire   +4 more sources

Wavelength-Selective Phase-Shifting Digital Holography: Color Three-Dimensional Imaging Ability in Relation to Bit Depth of Wavelength-Multiplexed Holograms

Applied Sciences, 2018
The quality of reconstructed images in relation to the bit depth of holograms formed by wavelength-selective phase-shifting digital holography was investigated.
Tatsuki Tahara, Reo Otani, Yasuhiro Takaki   +2 more
doaj   +1 more source

Deep learning bimodal frequency-selective digital holography by using a confocal dual-beam setup

New Journal of Physics
This paper proposes a bimodal digital holography technique based on deep learning, marking the first application of neural networks in frequency-selective holographic reconstruction.
Wanbin Zhang, Yanchen Ren, Yijian Feng, Xiangdong Sun, Jiangnan Hu, Weiyong Xing, Zhanjun Zhang   +6 more
doaj   +1 more source