Results 101 to 110 of about 35,274,744 (211)

Super‐Resolution and High‐Data‐Density Acoustic Meta‐Hologram via Amplitude and Phase Coupling

open access: yesAdvanced Science, Volume 13, Issue 52, 18 September 2026.
A super‐resolution acoustic meta‐hologram utilizes amplitude‐phase coupling under energy conservation constraints to overcome the traditional diffraction limit. This conceptually advanced approach achieves high‐fidelity acoustic field reconstruction and dense information transmission, unlocking new potentials for high‐resolution acoustic imaging and ...
Xiao Guo   +15 more
wiley   +1 more source

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

open access: yesApplied 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   +2 more
doaj   +1 more source

Intelligent Plasmonic Bio‐Holoelectrochemical Systems: A Testable Architecture for Light‐Programmed Microbial Electrochemistry

open access: yesGlobal Challenges, Volume 10, Issue 9, September 2026.
An evidence‐derived architecture integrates structured light, plasmonic bioelectrodes, spatial sensing, microbial electrosynthesis, and digital‐twin control into a testable framework for light‐programmed microbial electrochemistry. Mechanistic discrimination, equal‐dose spatial validation, and conservation‐aware performance accounting define the ...
Timoth Mkilima
wiley   +1 more source

Edge Extraction Based on Aperture Synthesis in Optical Scanning Holography [PDF]

open access: yes, 2015
We present an edge extraction method based on aperture synthesis with different pupils in optical scanning holography. By utilizing two sub-holograms covering different spatial frequency ranges of the object, sharp edges can be extracted successfully ...
Ou, H   +5 more
core   +1 more source

Compressed Sensing: a new framework for signals recovery and its application in Digital Holography [PDF]

open access: yes, 2011
In olografia digitale l'informazione di ampiezza e fase del fronte d'onda di un oggetto può essere ottenuta quantitativamente e analizzata in digitale attraverso la simulazione numerica delle leggi di diffrazione.
Memmolo, Pasquale
core   +1 more source

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

open access: yesNew 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   +6 more
doaj   +1 more source

Advances in Optical Metrology: High-Bandwidth Digital Holography for Transparent Objects Analysis

open access: yesPhotonics
Accurate and non-invasive optical metrology of transparent objects is essential in several commercial and research applications, from fluid dynamics to biomedical imaging.
Manoj Kumar   +5 more
doaj   +1 more source

Lensless single-shot dual-wavelength digital holography with sub-pixel resolution and centimeter depth range [PDF]

open access: yesAPL Photonics
Lensless single-shot dual-wavelength digital holography is resolution limited by the pixel-size of the camera and often has an insufficient depth range.
Huangcheng Shangguan   +2 more
doaj   +1 more source

Bayesian Optimization of Grayscale Patterns for Layer‐Height Accuracy in Projection Multi‐Photon 3D Printing

open access: yesLaser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.
Bayesian optimization combined with in situ quantitative phase imaging enables autonomous correction of layer‐height deviations in projection multi‐photon lithography. By jointly tuning model parameters and grayscale exposure settings, the method achieves more uniform and accurate layers within 300 prints, offering a fast, data‐efficient route to ...
Jason E. Johnson, Xianfan Xu
wiley   +1 more source

Autofocusing of optical scanning holography based on entropy minimization [PDF]

open access: yes, 2015
In optical scanning holography, extracting distance of object is an indispensable step for numerical reconstruction. In this paper, we use entropy as a measurement to achieve autofocusing under different situations.
Lam, E   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy