Article
Chemistry, Multidisciplinary
Fengshan Zheng, Vadim Migunov, Jan Caron, Hongchu Du, Giulio Pozzi, Rafal E. Dunin-Borkowski
Summary: We demonstrate the quantitative 3D mapping of charge density and electric field in an electrically biased carbon fiber nanotip with a spatial resolution of approximately 5 nm using electron holographic tomography in the transmission electron microscope combined with model-based iterative reconstruction. This approach can be extended to study various nanoscale materials and devices.
Article
Multidisciplinary Sciences
Xiaohua Feng, Yayao Ma, Liang Gao
Summary: This paper presents a compact light field photography technique that uses simple optics and a small number of sensors to capture large-scale light fields. It enables high-speed and accurate 3D imaging and can handle severe occlusions.
NATURE COMMUNICATIONS
(2022)
Article
Optics
Shu-Feng Lin, Philippe Gentet, Di Wang, Seung-Hyun Lee, Eun-Soo Kim, Qiong-Hua Wang
Summary: The proposed full-color holographic three-dimensional display system utilizes an angular-compensating holographic optical element to achieve a simple structure for full-color display. This system eliminates the need for additional optical elements for synthesizing full-color reconstruction, leading to enhanced system integration and miniaturization.
OPTICS AND LASERS IN ENGINEERING
(2021)
Article
Optics
Haeun Sun, Yunheung Song, Andrew Byun, Heejeong Jeong, Jaewook Ahn
Summary: The paper presents a method for simultaneous imaging of a three-dimensional distribution of point sources, demonstrating successful experiments in a two-lens microscope setup. The technique shows potential for non-sequential real-time measurements of three-dimensional point sources, particularly in quantum correlation measurements and in situ tracking of dynamic particles.
Article
Optics
Peng Xia, Shien Ri
Summary: A high-speed digital holographic tomography system based on off-axis multiplexed recording is introduced for fast 3D phase measurements of transparent gasses. By using object beams at various angles and interfering with the reference beam, holograms are recorded and phase information is reconstructed to obtain the 3D phase information of the object by back-projection algorithm. The system achieved a measurement speed of 65 frames per second for an asymmetric gas flow in the experiments.
OPTICS AND LASERS IN ENGINEERING
(2023)
Article
Plant Sciences
Natsumi Masumoto, Yuki Suzuki, Songkui Cui, Mayumi Wakazaki, Mayuko Sato, Kie Kumaishi, Arisa Shibata, Kaori M. Furuta, Yasunori Ichihashi, Ken Shirasu, Kiminori Toyooka, Yoshinobu Sato, Satoko Yoshida
Summary: This study reconstructed the haustoria of two Orobanchaceae species, revealing the spatial arrangement of multiple cell types inside the haustoria and their interaction with host roots. The 3-D internal structures of the haustoria highlighted differences between the two parasites, providing insights into haustorium function.
Article
Optics
Herve Hugonnet, Moosung Lee, YongKeun Park
Summary: In light transmission microscopy, axial scanning does not directly provide tomographic reconstruction of specimen. Phase deconvolution microscopy can convert a raw intensity image stack into a refractive index tomogram, the intrinsic sample contrast which can be exploited for quantitative morphological analysis. However, this technique is limited by reconstruction artifacts due to unoptimized optical conditions, which leads to a sparse and non-uniform optical transfer function. Here, we propose an optimization method based on simulated annealing to systematically obtain optimal illumination schemes that enable artifact-free deconvolution. The proposed method showed precise tomographic reconstruction of unlabeled biological samples.
Article
Radiology, Nuclear Medicine & Medical Imaging
Xiang Gao, Valerij G. Kiselev, Thomas Lange, Juergen Hennig, Maxim Zaitsev
Summary: An open-source spatially resolved phase graph framework is proposed for simulating arbitrary pulse sequences efficiently in three dimensions and estimating signal modulation. The framework's effectiveness is validated through several application examples showing its ability to analyze signal evolution in both frequency and spatial domain.
MAGNETIC RESONANCE IN MEDICINE
(2021)
Article
Nanoscience & Nanotechnology
Taehwang Son, Gwiyeong Moon, Changhun Lee, Peng Xi, Donghyun Kim
Summary: Near-field optics is crucial in nanotechnology applications for precise biosensing and imaging systems. Analytical approaches, particularly near-field scanning microscopy, are used to understand optical near-fields at the nanoscale. This paper proposes DePLOMA, a technique that overcomes limitations of conventional methods by imaging fluorescence emitters in an out-of-focal plane. By acquiring and accumulating position and fluorescence intensity data, three-dimensional near-field maps can be generated. Super-resolution liquid-phase measurements are demonstrated through reconstruction of near-fields created by nanoslits.
Article
Optics
Li Liu, Xinzhu Sang, Xunbo Yu, Xin Gao, Boyang Liu, Yuedi Wang, Yingying Chen, Peiren Wang, Chao Gao, Binbin Yan
Summary: Compared with traditional integral imaging systems, light-field displays (LFDs) based on a holographic functional screen (HFS) have advantages in the number of viewpoints, viewing angle, and resolution. However, LFDs often have a limited depth range due to pixel deviation effects. This study presents an analysis method for depth of field (DOF) based on pixel deviation effects observed on the HFS plane, showing that the percentage of pixel deviation is a more accurate measure for calculating DOF, which is verified through optical experiments.
OPTICS COMMUNICATIONS
(2021)
Article
Optics
Lidan He, Kexuan Liu, Zehao He, Liangcai Cao
Summary: We demonstrate a real-time three-dimensional communication system that integrates capture, hologram generation, transmission, and display. The system captures the point cloud of a 3D scene using a structured light camera and a light field camera. Phase-only computer-generated holograms are calculated based on rendered depth images and shading images using the layer-based angular spectrum method. The dynamic reconstruction of phase-only holograms is achieved using a dynamic 4K liquid crystal spatial light modulator. The system achieves a framerate of 20 fps and a latency of 0.1 s, which can be supported by a 5G network. We propose that this system is a potential solution for telepresence in the metaverse.
OPTICS COMMUNICATIONS
(2023)
Article
Automation & Control Systems
Qiuyang Zhao, Yu Zhao, Lijun Bao
Summary: In this article, a primary-auxiliary coupled neural network (PANet) is proposed for 3-D holographic particle field characterization, which achieves excellent performance in solving imaging artifact, noise, and blur.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2022)
Review
Optics
Dapu Pi, Juan Liu, Yongtian Wang
Summary: Holographic three-dimensional display is an important technique that provides depth information without special eyewear. Computer-generated holograms have emerged as the most promising method for holographic display, but face challenges such as heavy computation burden and low image quality. Researchers have explored various algorithms to overcome these problems and achieve color dynamic holographic three-dimensional display.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Physics, Applied
Junmei Cao, Kexin Yang, Xinsheng Fang, Ling Guo, Yong Li, Qian Cheng
Summary: Acoustic vortex beams, with their additional degree-of-freedom provided by orbital angular momentum, have garnered significant research interest. Utilizing passive materials and an improved method for generation, along with proposing holographic reconstruction for three-dimensional acoustic field visualization, this research offers a reference for manipulation and representation of underwater acoustic waves in three dimensions.
APPLIED PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Zilu Wang, Qiangwei Yin, Shaohua Yan, Linlu Wu, Xuchuan Wu, Man Li, Wenhua Song, Qingxin Liu, Huan Ma, Wei Ji, Hechang Lei, Shancai Wang
Summary: High-resolution angle-resolved photoemission spectroscopy was used to investigate the 3D charge-density wave transition in 1T-VSe2, revealing comprehensive evidence of 3D Fermi surface nesting. The variation in photon energy led to observations of Fermi surface warping and nesting conditions along the K-z direction. The larger value of 2 Delta/k(B)T(c) = 14.76 and gap correspondence suggest a combined effort in the formation of CDW in this material beyond the weak-coupling region.
Article
Microscopy
Tatiana Latychevskaia, Yichao Zou, Colin Robert Woods, Yi Bo Wang, Matthew Holwill, Eric Prestat, Sarah J. Haigh, Kostya S. Novoselov
Article
Microscopy
Tatiana Latychevskaia, Colin Robert Woods, Yi Bo Wang, Matthew Holwill, Eric Prestat, Sarah J. Haigh, Kostya S. Novoselov
Article
Optics
Tatiana Latychevskaia
Summary: The study introduces methods of three-dimensional deconvolution and demonstrates the effectiveness of recovering different types of samples through non-iterative and iterative algorithms. It is shown that only iterative algorithms combined with optimal protocols can accurately recover the 3D sample distribution.
Article
Chemistry, Physical
T. Latychevskaia, S. J. Haigh, K. S. Novoselov
Summary: Convergent beam electron diffraction (CBED) has been widely used in studying 2D materials to investigate structural defects, adsorbates, atomic displacements, and interlayer distances. The interference patterns in individual CBED spots of 2D crystals can be reconstructed using conventional holography methods. Recent studies have applied CBED to analyze defects, interlayer distances, adsorbates, and moire patterns in van der Waals systems.
SURFACE REVIEW AND LETTERS
(2021)
Correction
Optics
Tatiana Latychevskaia, Fabian Gehri, Hans-Werner Fink
Article
Physics, Multidisciplinary
Tatiana Latychevskaia
Summary: In this study, a new method is proposed to reconstruct 3D sample distribution from a single 2D intensity measurement, exceeding the classical limit in z resolution. This method is practical for radiation-sensitive materials or experimental setups with constraints on the number of intensity measurements.
PHYSICAL REVIEW LETTERS
(2021)
Article
Microscopy
Tatiana Latychevskaia, Recep Zan, Sergey Morozov, Kostya S. Novoselov
Summary: The study introduces a new theoretical approach beyond the weak phase approximation, allowing for the analysis of electron diffraction patterns in 2D crystals with different scattering characteristics. The symmetry of the exit wave unit cell distribution determines the symmetry of the diffraction pattern, with expectations of symmetrical patterns for identical atom arrangements and non-symmetrical patterns for TMD materials.
Article
Optics
Tatiana Latychevskaia
Summary: This study further investigates the methods of three-dimensional (3D) wavefront intensity modulation using contrast-inverted holography, with a focus on creating smooth appearance of 3D curves. It demonstrates the use of spherical waves for 3D wavefront modulation and discusses the miniaturization of 3D intensity beams, showing that the resolution and size of the created structures are determined by the wavelength of the employed radiation. The study also explores applications of the presented methods in various techniques such as lithography, micro-robotics, and particle trapping, indicating their broad utility across different types of waves.
Article
Microscopy
Tatiana Latychevskaia, Cathal Cassidy, Tsumoru Shintake
Summary: Crystal diffraction is a well-established technique for high-resolution structural analysis, but it can smear out imperfections and defects in the crystal. Bragg holography offers a way to image nano-crystals at a defocus distance, allowing separation of diffracted beams without turning them into peaks. This technique provides a complete complex-valued wavefront with information about atomic distribution, including defects, and has been successfully demonstrated for gold nano-crystals with feasibility shown for biological nano-crystals.
Article
Multidisciplinary Sciences
Tatiana Latychevskaia, Alice Kohli
Summary: A low-dose imaging technique is proposed, where recognition is used instead of recording high-resolution images to verify structural hypotheses. By detecting only a few scattered particles, a structural hypothesis can be confirmed with a probability exceeding 95%. This technique can be applied to optical character recognition and minimizing radiation damage in sensitive materials.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Physical
Tatiana Latychevskaia, Colin Robert Woods, Yi Bo Wang, Matthew Holwill, Eric Prestat, Sara Mustafi, Sarah J. Haigh, Konstantin S. Novoselov
Summary: This study demonstrates the possibility of directly measuring scattering parameters through the intensity distribution of spots in CBED patterns. A method for recovering atomic scattering parameters from CBED patterns is proposed and validated through experiments and simulations.
Review
Optics
Sara Mustafi, Tatiana Latychevskaia
Summary: Fourier transform holography (FTH) is a lensless imaging technique that reconstructs the distribution of an object by superimposing the waves scattered by the object and a reference source in the same plane. This study provides an overview of the basic principles, different types of references, and reconstruction algorithms of FTH. It also discusses the current applications of FTH with different waves (light, electron, and X-ray) and their relationships with other coherent imaging techniques.
Editorial Material
Nanoscience & Nanotechnology
Tatiana Latychevskaia
Summary: The topological parameters of the channel network in twisted bilayer graphene can be manipulated by intercalating lithium atoms.
NATURE NANOTECHNOLOGY
(2023)
Article
Microscopy
Tatiana Latychevskaia
Summary: This study provides theoretical considerations and models for the quantitative analysis of experimental data observed in low-energy electron transmission microscopy and in-line holography. The results show that the scattering and imaging parameters of low-energy electrons can be quantitatively described, and the blurring phenomenon in imaging of objects with finite thickness is explained. A simple method to quantitatively evaluate the absorption properties of a specimen from its in-line hologram is presented.
Article
Materials Science, Multidisciplinary
Tatiana Latychevskaia, Pengru Huang, Kostya S. Novoselov
Summary: In this study, we demonstrate how convergent-beam electron diffraction (CBED) can be used for atomic-precision imaging of individual defects in 2D materials. By combining structural calculations and density-functional theory, we present simulated CBED patterns and show how atomic positions can be reconstructed through iterative phase retrieval.
