Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Photoelectric Effect02:26

Photoelectric Effect

38.3K
When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
38.3K
Finding Electric Potential From Electric Field01:13

Finding Electric Potential From Electric Field

5.2K
For a system of charges, it is easy to calculate the system's potential because potential is a scalar quantity. However, in some instances where calculating the electric field is more straightforward than finding the potential, the electric field is used to calculate the system's potential. For a positive charge, the electric field is radially outward, and the potential is positive at any finite distance from the positive charge. In such an electric field, the motion away from the...
5.2K
Magnetic Vector Potential01:15

Magnetic Vector Potential

1.4K
In electrostatics, the electric field can be written as the negative gradient of the potential. In magnetostatics, the zero divergence of the magnetic field ensures that the magnetic field can be expressed as the curl of a vector potential. This potential is known as the magnetic vector potential.
Consider an ideal solenoid with n turns per unit length and radius R. If I is the current through the solenoid, the magnetic field inside the solenoid is expressed as the product of vacuum...
1.4K
Determining Electric Field From Electric Potential01:12

Determining Electric Field From Electric Potential

4.8K
The electric field and electric potential are related to each other. If the electric field at various points in the region of interest is known, it can be used to calculate the electric potential difference between any two points. Similarly, if the electric potential is known for various points, then it is possible to calculate the electric field.
In general, regardless of whether the electric field is uniform, it points in the direction of decreasing potential because the force on a positive...
4.8K
Transmission Electron Microscopy01:15

Transmission Electron Microscopy

6.6K
In 1931, physicist Ernst Ruska—building on the idea that magnetic fields can direct an electron beam just as lenses can direct a beam of light in an optical microscope—developed the first prototype of the electron microscope. This development led to the development of the field of electron microscopy. In the transmission electron microscope (TEM), electrons are produced by a hot tungsten element and accelerated by a potential difference in an electron gun, which gives them up to 400...
6.6K
Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

2.7K
Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
2.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A compact 2.0 T superconducting magnet.

The Review of scientific instruments·2020
Same author

Slow Acceptance of Universal Antiretroviral Therapy (ART) Among Mothers Enrolled in IMPAACT PROMISE Studies Across the Globe.

AIDS and behavior·2019
Same author

Ultrasound-activated microbubbles as a novel intracellular drug delivery system for urinary tract infection.

Journal of controlled release : official journal of the Controlled Release Society·2019
Same author

How to replace fibrinogen in postpartum haemorrhage situations? (Hint: Don't use FFP!).

International journal of obstetric anesthesia·2017
Same author

Differences among four meat goat breeds for doe fitness indicator traits in the southeastern United States.

Journal of animal science·2017
Same author

Enhanced spatial resolution in vector potential photoelectron microscopy.

Journal of microscopy·2017
Same journal

Unsupervised deep image prior for sparse-view and limited-angle electron tomography.

Ultramicroscopy·2026
Same journal

Determination of the structure of the tertiary phase in the alloy Al<sub>10</sub>Mo<sub>10</sub>Nb<sub>10</sub>Ta<sub>10</sub>Ti<sub>30</sub>Zr<sub>30</sub> using convergent beam electron diffraction.

Ultramicroscopy·2026
Same journal

Predictive drift compensation of multi-frame STEM via live scan modification.

Ultramicroscopy·2026
Same journal

Deep PACBED: Multitask analysis of PACBED images using deep neural networks.

Ultramicroscopy·2026
Same journal

Guided progressive reconstructive imaging: A new quantization-based framework for low-dose, high-throughput and real-time analytical ptychography.

Ultramicroscopy·2026
Same journal

Brightness optimization in a 200 keV DTEM source by geometry-driven aberration suppression.

Ultramicroscopy·2026
See all related articles

Related Experiment Video

Updated: Dec 18, 2025

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F&#8722;
06:53

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−

Published on: July 27, 2018

9.0K

Vector Potential Photoelectron Microscopy Instrument Design.

R Browning1

  • 1R. Browning Consultants, 1 Barnhart Place, Shoreham, NY 11786.

Ultramicroscopy
|June 14, 2020
PubMed
Summary
This summary is machine-generated.

This report details the design of a vector potential photoelectron microscope (VPPEM). It addresses practical challenges and compromises in optimizing the optical configuration for a functional instrument.

More Related Videos

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

10.3K
Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
08:53

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

18.0K

Related Experiment Videos

Last Updated: Dec 18, 2025

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F&#8722;
06:53

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−

Published on: July 27, 2018

9.0K
Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

10.3K
Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
08:53

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

18.0K

Area of Science:

  • Physics
  • Materials Science
  • Microscopy

Background:

  • The vector potential photoelectron microscope (VPPEM) offers unique capabilities for surface analysis.
  • Designing such advanced microscopes requires careful consideration of optical configurations.

Purpose of the Study:

  • To outline the key design aspects of a VPPEM.
  • To discuss the challenges and compromises in achieving an optimal optical setup for practical VPPEM instrumentation.

Main Methods:

  • Summarizing instrumental setups for VPPEM.
  • Analyzing basic design issues and optical configurations.

Main Results:

  • Identification of non-obvious areas in VPPEM optical design.
  • Elucidation of necessary compromises for practical VPPEM construction.

Conclusions:

  • The design of a VPPEM involves navigating complex optical choices.
  • Practical implementation necessitates strategic compromises to balance performance and feasibility.