Materialia, Год журнала: 2024, Номер unknown, С. 102311 - 102311
Опубликована: Дек. 1, 2024
Язык: Английский
Applied Physics B, Год журнала: 2024, Номер 130(9)
Опубликована: Авг. 29, 2024
Computational methods have been established as cornerstones in optical imaging and holography recent years. Every year, the dependence of on computational is increasing significantly to extent that components are being completely efficiently replaced with at low cost. This roadmap reviews current scenario four major areas namely incoherent digital holography, quantitative phase imaging, through scattering layers, super-resolution imaging. In addition registering perspectives modern-day architects above research areas, also reports some latest studies topic. codes pseudocodes presented for a plug-and-play fashion readers not only read understand but practice algorithms their data. We believe this will be valuable tool analyzing trends predict prepare future holography.
Язык: Английский
Процитировано
13
Light Science & Applications, Год журнала: 2025, Номер 14(1)
Опубликована: Фев. 10, 2025
Abstract Light-field displays typically consist of a two-dimensional (2D) display panel and light modulation device. The 2D presents synthesized parallax images, with the total information content three-dimensional (3D) field dictated by panel’s resolution. Angular resolution serves as critical metric for light-field displays, where higher angular correlates more realistic 3D visual experience. However, improvement is accompanied reduction in spatial resolution, due to limitations To address this challenge, method enhanced utilization introduced, achieved through independent chrominance luminance. A static image system proposed verify feasibility method. employs bidirectional grating (BAMG) collimated source (CLS) create uniformly distributed viewpoints space. luminance film (LMF) (CMF) are utilized modulate information, images printed at pixel densities 720 pixels per inch (PPI) 8000 dots (DPI), respectively, align differential sensitivities human system. In experiment, achieves full-parallax, high-fidelity color 98.2° horizontal 97.7° vertical view (FOV). So, modulating separately has been proven achieve effects.
Язык: Английский
Процитировано
2
Biomedical Optics Express, Год журнала: 2025, Номер 16(2), С. 837 - 837
Опубликована: Янв. 15, 2025
Optical diffraction tomography (ODT) is an important technique for three-dimensional (3D) imaging of semi-transparent biological samples, enabling volumetric visualization living cells, cultures, and tissues without the need exogenous dyes. However, ODT faces significant challenges in complex specimens due to limited specificity refractive index (RI) coupled relationship between absorption phase image formation. Here, we present multi-modal transport intensity (MM-TIDT), a high-speed 3D microscopy that integrates electrically tunable lens with modified illumination patterns decouple information. Leveraging dual schemes-circular annular apertures-MM-TIDT acquires two stacks, facilitating accurate decoupling. Based on alternating direction method multipliers (ADMM) framework total variation (TV) non-negativity regularization, our reconstructs distributions fluorescence RI high accuracy robustness. Experimental validation fluorescent polystyrene microspheres, Spirulina specimens, DAPI-labeled C166 cells demonstrates capability MM-TIDT resolve fine structural details across diverse sample types, providing versatile platform exploring dynamic processes intricate cellular interactions.
Язык: Английский
Процитировано
1
Advances in Physics X, Год журнала: 2024, Номер 9(1)
Опубликована: Март 26, 2024
Structured light refers to the ability tailor in its many degrees of freedom, from traditional control time and space more exotic multi-dimensional for new forms light, including vectorial toroidal excitations, spatio-temporal vortices, skyrmions, optical mobius strips name but a few. While toolbox creation detection structured has advanced tremendously, this mostly been low power regime. More recently, at high-power high-intensities emerged, fuelling science applications. In progress report, we showcase seminal work that field, indicate open challenges opportunities remain.
Язык: Английский
Процитировано
5
Fundamental Research, Год журнала: 2024, Номер unknown
Опубликована: Март 1, 2024
Lensless imaging is an innovative and swiftly advancing technology at the intersection of optics, technology, computational science. It captures scene by directly recording interference or diffraction patterns light, subsequently utilizing algorithms to reconstruct original image from these patterns. upends traditional paradigms, offering newfound design flexibility capacity seamlessly integrate within diverse ecosystems. This paper aims provide overview significant developments in optical modulation elements, sensors, reconstruction algorithms. The novel application scenarios that benefit lensless are presented. opportunities challenges associated with camera discussed for further improving its performance.
Язык: Английский
Процитировано
4
Chip, Год журнала: 2024, Номер unknown, С. 100109 - 100109
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
4
Biomedical Optics Express, Год журнала: 2025, Номер 16(3), С. 1160 - 1160
Опубликована: Фев. 21, 2025
Lensless imaging is a popular research field because of its small size, wide field-of-view, and low aberration in recent years. However, some traditional lensless methods suffer from slow convergence, mechanical errors, conjugate solution interference, which limit their further application development. In this work, we proposed method based on spatial light modulator (SLM) with unknown phase modulation values. our system, the SLM utilized to modulate wavefront object. When values are inaccurate or unknown, conventional algorithms such as amplitude-phase retrieval (APR) extended ptychographic iterative engine (ePIE) fail reconstruct complex amplitude information To address challenge, introduce novel approach that combines scanning along spiral path ePIE algorithm, enabling accurate reconstruction original image. We analyze effect function characteristics coherent source quality reconstructed The experiments show superior terms recovering speed accuracy, resolution up 14 μm USAF plate
Язык: Английский
Процитировано
0
Laser & Photonics Review, Год журнала: 2025, Номер unknown
Опубликована: Март 22, 2025
Abstract Multimode fiber (MMF) imaging is a powerful technique for minimally invasive endoscopy. However, the absence of high‐speed spatial light modulators (SLMs) poses challenge in pursuit high‐speed, real‐time MMF imaging. Silicon optical phased array (OPA) serves as possible solution to mode field manipulation; however, nonlinearity phase response silicon p‐i‐n diodes makes it unfeasible realize precise multilevel control at high speed. In this paper, shown that driving scheme OPA can be simplified by using binary modulation, enabling use digital voltage drivers instead high‐precision digital‐to‐analog converters. The achieves modulation 1 MHz, which three times faster than state‐of‐the‐art SLMs. Experimental results demonstrate frame rate up 500 frames per second. image‐reconstruction period short 0.1 ms frame, making system suitable measured resolution 2.3 µm with view diameter 105 µm, approaches diffraction limit.
Язык: Английский
Процитировано
0
Communications Physics, Год журнала: 2025, Номер 8(1)
Опубликована: Апрель 19, 2025
Язык: Английский
Процитировано
0
Optics Communications, Год журнала: 2025, Номер 587, С. 131960 - 131960
Опубликована: Май 3, 2025
Язык: Английский
Процитировано
0