Results 51 to 60 of about 3,425 (175)
Laser &Photonics Reviews, EarlyView.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
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Multiwavelength Digital Holography for Metrology: Low-Coherent Noise Sensor Configuration and Its Application [PDF]
EPJ Web of ConferencesThe demand for 100% inspection is increasing due to rising quality requirements in manufacturing. Multiwavelength Digital Holography (MDH) has emerged as a promising sensing technology capable of achieving both high throughput and high resolution ...
Matsuura Shimpei +3 more
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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 +2 more
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HoloSpec: Dispersion‐Based 4D Computational Holographic Hyperspectral Imaging
Laser &Photonics Reviews, EarlyView.HoloSpec, a compact dispersion‐based computational holographic system, achieves four‐dimensional imaging by retrieving 3D spatial structure and high‐resolution spectra from only two monochromatic snapshots. Using a single prism and a monochrome sensor, it resolves 430 spectral channels with 3 nm experimental resolution and 30 μm$\mathrm{\mu}\mathrm{m}$
Jingyan Chen +3 more
wiley +1 more source
Generating Helical Polymorphic Beams Using Dielectric Metasurfaces
Laser &Photonics Reviews, EarlyView.Helix‐shaped polymorphic beams are optical fields whose intensity maxima spiral around the propagation axis, enabling particle manipulation through attractive or repulsive forces. Traditionally requiring expensive spatial light modulators, metasurfaces now provide a compact, cost‐effective alternative. This work demonstrates general helical polymorphic
Maryam Setareh +3 more
wiley +1 more source
Opto-Electronic AdvancesWe present a compact self-interference incoherent digital holography (SIDH) system that incorporates a quarter-waveplate (QWP)-based geometric phase (GP) lens to achieve high-fidelity, full-color holographic imaging under broadband incoherent ...
Jae-Won Lee +6 more
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Toward Intelligent Multimodal Holography for Real‐Time Chemical Imaging of Dynamic Ion Separation
Advanced Intelligent Discovery, Volume 2, Issue 4, August 2026.Intelligent multimodal holography integrates digital off‐axis holography, spectroscopic imaging, and AI‐driven reconstruction to visualize ion transport and chemical dynamics in real time. In this perspective paper, we outline how this approach enables label‐free, chemically specific monitoring of complex environments and discuss its potential to ...
Giovanna Ricchiuti +3 more
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Speckle Reduction in Digital Holography by Fast Logistic Adaptive Non-Local Means Filtering
PhotonicsDigital holography is a promising imaging technology. However, there is speckle noise in the reconstructed image of a digital hologram. Speckle degrades the quality of the reconstructed image.
Yiping Fu, Junmin Leng, Zhenqi Xu
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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
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Nanophotonics, Volume 15, Issue 14, 27 July 2026.Integrated optical phased arrays are emerging as scalable engines for solid‐state beam steering and programmable wavefront control. This Review maps the field from beam‐steering principles and core building blocks to material platforms, system‐level bottlenecks, and application frontiers, highlighting how heterogeneous integration, aperiodic ...
Jingwei Li +7 more
wiley +1 more source