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Electron tomography is a technique used in both materials science and structural biology to image features well below optical resolution limit. In this work, we present a new algorithm for reconstructing the three-dimensional(3D)…

信号处理 · 电气工程与系统科学 2018-07-12 David Ren , Michael Chen , Laura Waller , Colin Ophus

Ion Beam Sputtering (IBS) is a cost-effective technique able to produce ordered nanopatterns on the surfaces of different materials. To date, most theoretical studies of this process have focused on systems which become amorphous under…

介观与纳米尺度物理 · 物理学 2016-05-04 Javier Renedo , Javier Muñoz-García , Mario Castro , Rodolfo Cuerno

Space and time scales are not independent in diffusion. In fact, numerical simulations show that different patterns are obtained when space and time steps ($\Delta x$ and $\Delta t$) are varied independently. On the other hand, anisotropy…

patt-sol · 物理学 2015-06-26 Rui Dilao , Joaquim Sainhas

Characterizing long-range electric fields and built-in potentials in functional materials at nano- to micrometer scales is of supreme importance for optimizing devices. E.g., the functionality of semiconductor heterostructures or battery…

Nanomaterials with core-shell architectures are prominent examples of strain-engineered materials, where material properties can be designed by fine-tuning the misfit strain at the interface. Here, we elucidate the full 3D atomic structure…

Analyzing 3D anisotropic materials presents significant challenges, especially when assessing 3D orientations, material distributions, and anisotropies through scattered light, due to the inherently vectorial nature of light-matter…

光学 · 物理学 2024-04-29 ChulMin Oh , Herve Hugonnet , Juheon Lee , YongKeun Park

We report the first measurement of size-resolved photoelectron angular distributions for the valence orbitals of water clusters with up to 20 molecules. A systematic decrease of the photoelectron anisotropy is found for clusters with up to…

化学物理 · 物理学 2017-03-17 Sebastian Hartweg , Bruce L. Yoder , Gustavo A. Garcia , Laurent Nahon , Ruth Signorell

Detection of boundaries of materials stored in transparent vessels is essential for identifying properties such as liquid level and phase boundaries, which are vital for controlling numerous processes in the industry and chemistry…

计算机视觉与模式识别 · 计算机科学 2016-02-02 Sagi Eppel

Textures in images can often be well modeled using self-similar processes while they may at the same time display anisotropy. The present contribution thus aims at studying jointly selfsimilarity and anisotropy by focusing on a specific…

数据分析、统计与概率 · 物理学 2015-06-16 S. G. Roux , M. Clausel , B. Vedel , S. Jaffard , P. Abry

We describe a high resolution imaging detector based on a single 80 mm micro-channel-plate (MCP) and a phosphor screen mounted on a UHV flange of only 100 mm inner diameter. It relies on standard components and we describe its performance…

仪器与探测器 · 物理学 2018-05-30 Sylvain Lupone , Pierre Soulisse , Philippe Roncin

Accurate estimation of surface wettability for various degrees of hydrophobicity becomes increasingly important in the molecular design of membrane. In this paper, we develop simple yet physically realistic model for estimating contact…

软凝聚态物质 · 物理学 2018-01-08 Meysam Makaremi , Myung S. Jhon , Meagan S. Mauter , Lorenz T. Biegler

Resolving single atoms in large-scale volumes has been a goal for atomic resolution microscopy for a long time. Electron microscopy has come close to this goal using a combination of advanced electron optics and computational imaging…

材料科学 · 物理学 2023-11-07 Andrey Romanov , Min Gee Cho , Mary Cooper Scott , Colin Ophus , Philipp Pelz

In electrochemistry, reactions and charge-transfer are to a large extent determined by the atomistic structure of the solid-liquid interface. Yet due to the presence of the liquid electrolyte, many surface-science methods cannot be applied…

材料科学 · 物理学 2024-02-08 Justus Leist , Jongmin Kim , Holger Euchner , Matthias M. May

Solid/liquid interfaces control various processes of technological relevance in the process industry and many fundamental physicochemical phenomena. This work examines the link between the atomistic description of mass transfer at…

软凝聚态物质 · 物理学 2021-09-07 Aaron R Finney , Matteo Salvalaglio

The two particle-in-cell codes EDIPIC and LSP are benchmarked and validated for a parallel-plate glow discharge in helium, in which the axial electric field had been carefully measured, primarily to investigate and improve the fidelity of…

等离子体物理 · 物理学 2017-11-30 Johan Carlsson , Alexander Khrabrov , Igor Kaganovich , Timothy Sommerer , David Keating

Transmission electron microscopy and spectroscopy currently enable the acquisition of spatially resolved spectral information from a specimen by focusing electron beams down to a sub-Angstrom spot and then analyzing the energy of the…

材料科学 · 物理学 2022-09-12 Andrea Konečná , Fadil Iyikanat , F. Javier García de Abajo

Accurate and generalizable metric depth estimation is crucial for various computer vision applications but remains challenging due to the diverse depth scales encountered in indoor and outdoor environments. In this paper, we introduce…

计算机视觉与模式识别 · 计算机科学 2025-04-17 Tao Wen , Jiepeng Wang , Yabo Chen , Shugong Xu , Chi Zhang , Xuelong Li

Raman spectroscopy stands as a cornerstone technique for probing collective excitations and emergent quantum phases in solids. While polarization-resolved Raman scattering has been widely used to extract symmetry information of eigenmodes,…

材料科学 · 物理学 2026-02-24 Di Cheng , Junxiang Li , Shizhuo Luo , Zehao Chen , Xinwei Li

Angle-resolved photoelectron spectroscopy of aerosol droplets is a promising method for the determination of electron mean free paths in liquids. It is particularly attractive for volatile liquids, such as water. Here we report the first…

We present a novel method, based on the Saunderson corrections, to predict the reflectance between a liquid interface and a dielectric diffuser. In this method, the diffuse properties of the dielectric are characterized using a single…

光学 · 物理学 2023-05-08 C. Silva , R. Cabrita , V. N. Solovov , P. Brás , A. Lindote , G. Pereira , M. I. Lopes