English
Related papers

Related papers: Three-Dimensional Spiral Beam Injection:Design Pri…

200 papers

In this work we present a novel computational method for embedding arbitrary curved one-dimensional (1D) fibers into three-dimensional (3D) solid volumes, as e.g. in fiber-reinforced materials. The fibers are explicitly modeled with highly…

Computational Engineering, Finance, and Science · Computer Science 2023-08-25 Ivo Steinbrecher , Matthias Mayr , Maximilian J. Grill , Johannes Kremheller , Christoph Meier , Alexander Popp

In this paper, we provide an overview of development of a structured light 3D-scanner based on combination of binary-coded patterns and sinusoidal phase-shifted fringe patterns called Coded Phase-shift technique. Further, we describe the…

Image and Video Processing · Electrical Eng. & Systems 2021-10-22 Pranav Kant Gaur , D. M. Sarode , S. K. Bose

Efficient design and performance of electrically actuated MEMS devices necessitate accurate estimation of electrostatic forces on the MEMS structures. This in turn requires thorough study of the capacitance of the structures and finally the…

Computational Physics · Physics 2007-05-23 N. Majumdar , S. Mukhopadhyay

Quantum simulation of 1D relativistic quantum mechanics has been achieved in well-controlled systems like trapped ions, but properties like spin dynamics and response to external magnetic fields that appear only in higher dimensions remain…

Quantum Physics · Physics 2022-05-30 Y. Jiang , M. -L. Cai , Y. -K. Wu , Q. -X. Mei , W. -D. Zhao , X. -Y. Chang , L. Yao , L. He , Z. -C. Zhou , L. -M. Duan

High-power electron beams are sought-after tools in support to a wide array of societal applications. This paper investigates the production of high-power electron beams by combining a high-current field-emission electron source to a…

Accelerator Physics · Physics 2018-12-26 O. Mohsen , I. Gonin , R. Kephart , T. Khabiboulline , P. Piot , N. Solyak , J. C. Thangaraj , V. Yakovlev

The sensitivity of Ramsey interferometry experiments is governed by the interplay between the beam phase-space distribution and the magnetic field environment through which the spins propagate. Quantitative optimisation thus requires a…

Instrumentation and Detectors · Physics 2026-03-26 Linus B. Persson , Peter Fierlinger , Matthias Holl , Valentina Santoro

Magnetic skyrmions are topologically protected chiral spin textures which present opportunities for next-generation magnetic data storage and logic information technologies. The topology of these structures originates in the geometric…

This paper analyzes different ways to simulate electromagnetically three-core armored cables in 3D by means of the finite element method. Full periodic models, as lengthy as 36 m, are developed to evaluate the accuracy when simulating only…

Systems and Control · Electrical Eng. & Systems 2024-01-24 Juan Carlos del-Pino-López , Marius Hatlo , Pedro Cruz-Romero

A model of an electron-beam-plasma system is introduced to model the electrical breakdown physics of low-pressure nitrogen irradiated by an intense pulsed electron beam. The rapidly rising beam current induces an electric field which drives…

The triangular mesh-based gyrokinetic scheme enables comprehensive axis-to-edge studies across the entire plasma volume. Our approach employs triangular finite elements with first-derivative continuity (C1), building on previous work to…

In this paper, we present a theoretical simulation of 87Rb absorption spectrum in a thermal cm-cell which is adaptive to the experimental observation. In experiment, the coupling and probe beams are configured to copropagate but…

Atomic Physics · Physics 2017-03-09 Hong Cheng , Shan-Shan Zhang , Pei-Pei Xin , Yuan Cheng , Hong-Ping Liu

The filamentary structures and associated electromagnetic fields of a relativistic electron beam have been studied by three dimensional particle-in-cell (PIC) simulations in the context of Fast Ignition fusion. The simulations explicitly…

Plasma Physics · Physics 2009-11-13 Anupam Karmakar , Naveen Kumar , Oleg Polomarov , Gennady Shvets , Alexander Pukhov

Three dimensional field configuration has been simulated for a simple wire chamber consisting of one anode wire stretched along the axis of a grounded square cathode tube by solving numerically the boundary integral equation of the first…

Instrumentation and Detectors · Physics 2008-11-26 N. Majumdar , S. Mukhopadhyay

The Snell phase effects on the propagation of optical beams through dielectric blocks have been matter of recent theoretical studies. The effects of this phase on the laser profiles have been tested in our experiment. The data show an…

We develop the analysis of x-ray intensity correlations from dilute ensembles of identical particles in a number of ways. First, we show that the 3D particle structure can be determined if the particles can be aligned with respect to a…

Data Analysis, Statistics and Probability · Physics 2015-05-28 Veit Elser

We report on the spin-polarized electron injection through an Fe(100)/InAs(100) junction. The circularly polarized electroluminescence of injected electrons from epitaxially grown Fe thin film into InAs(100) in an external magnetic field is…

Control over optical spatial coherence is a key requirement in diverse applications including imaging, optical trapping, and communications. Current approaches to controlling spatial coherence are constrained by speed or limited to a single…

This paper proposes an inductive coupled wireless power transfer system that analyses the relationship between induced voltage and distance of resonating inductance in a printed circuit spiral coils. The resonant frequency produced by the…

Signal Processing · Electrical Eng. & Systems 2018-10-25 Mohammad Haerinia , Ebrahim S. Afjei

We theoretically describe and numerically investigate the operation of "vectorial" optical differentiation of a three-dimensional light beam, which consists in simultaneous computation of two partial derivatives of the incident beam profile…

In this report, certain claims regarding the design criteria and characterizations of plasmonic bullseye (BE) structures are investigated. Does the matching of the grating's periodicity to the wavelength of surface waves results in a strong…

Optics · Physics 2020-03-13 Amir Djalalian-Assl