Results 11 to 20 of about 189,484 (267)
Field-emission electron gun for a MEMS electron microscope [PDF]
Microsystems & Nanoengineering, 2021 This article presents a field-emission electron gun intended for use in a MEMS (microelectromechanical system) electron microscope. Its fabrication process follows the technology of a miniature device under development built from silicon electrodes and ...
Michał Krysztof
doaj +3 more sources
Cryo Field Emission Scanning Electron Microscopy [PDF]
BioTechniques, 2001 Low-temperature scanning electron microscopy (cryoSEM) was introduced in the early 1970s, shortly after the appearance of the first commercial scanning electron microscopes. This technique has been utilized widely in plant biology, the food and paper industry, X-ray analytical studies, and material sciences (8).
Stanley L. Erlandsen +3 more
doaj +3 more sources
Vacuum-plasma processes at extreme field emission in diamond electron sources [PDF]
Известия Саратовского университета. Новая серия: Физика, 2021 Background and Objectives: The use of high-current field electron sources that satisfy various circuitry requirements as a part of electronic devices for various purposes suggests the possibility of matching their operation modes with the operating ...
Yafarov, Ravil' Kiashshafovich +2 more
doaj +1 more source
Extreme lightwave electron field emission from a nanotip
Physical Review Research, 2021 We report on subcycle terahertz light-field emission of electrons from tungsten nanotips under extreme conditions corresponding to a Keldysh parameter γ_{K}≈10^{−4}.
Dominique Matte +6 more
doaj +1 more source
Optically Induced Field-Emission Source Based on Aligned Vertical Carbon Nanotube Arrays
Nanomaterials, 2021 Due to the high field enhancement factor and photon-absorption efficiency, carbon nanotubes (CNTs) have been widely used in optically induced field-emission as a cathode.
Mengjie Li +5 more
doaj +1 more source
Modeling Field Electron Emission from a Flat Au (100) Surface with Density-Functional Theory
Instruments, 2023 Field electron emission, or electron tunneling through a potential energy (PE) barrier under the influence of a strong electrostatic (ES) or radio frequency (RF) field, is of broad interest to the accelerator physics community.
Yiming Li, Joshua Mann, James Rosenzweig
doaj +1 more source
Frontiers in Physics, 2023 The quantum effects of space charge on electron field emission have been widely investigated since the last century. When electrons energy and their mean spacing approach the Hartree level and the de Broglie wavelength respectively, the influence of the ...
Nan Li +3 more
doaj +1 more source
Electron emission in intense electric fields [PDF]
Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1928 Abstract 1. Introduction.—The main features of the phenomenon of the extraction of electrons from cold metals by intense electric fields are well known, and an approximate theory of the effect was first developed by Schottky. More recently the experimental data have been much improved, notably by Millikan and Eyring, and Millikan and ...
FOWLER, R. H., NORDHEIM, L.
openaire +1 more source
Nanomaterials, 2021 Carbon nanotube (CNT)-based cold cathodes are promising sources of field emission electrons for advanced electron devices, particularly for ultra-high-resolution imaging systems, due to their high brightness and low energy spread.
Ha Rim Lee +5 more
doaj +1 more source
Heliyon, 2022 Externally variable magnetic field was incorporated with the combination of laser induced breakdown spectroscopy (LIBS) to enhance the emission characteristics of aluminum (Al) plasma.
Atif Hussain +6 more
doaj +1 more source