Jove
Visualize
Contact Us

Related Concept Videos

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences01:17

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

1.9K
A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.
1.9K
Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

3.0K
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...
3.0K
Propagation Speed of Electromagnetic Waves01:30

Propagation Speed of Electromagnetic Waves

4.8K
Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
4.8K
Fermi Level Dynamics01:12

Fermi Level Dynamics

871
The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
871
Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

7.8K
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
7.8K

You might also read

Related Articles

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

Sort by
Same author

Aloe vera barbadensis extract regenerator with metabolic regulatory functions promotes skin regeneration and reduces fibrosis deposition in diabetic burn model pigs.

Burns : journal of the International Society for Burn Injuries·2026
Same author

Zero-PDG silicon photonic amplifier with high saturation power and low noise figure.

Nature communications·2026
Same author

Affinity-Tuned Albumin Hitchhiking Extends the Bioorthogonal Capture Window in Pretargeting Radiotheranostics.

Advanced healthcare materials·2026
Same author

Structural characterization of an acetylated glucomannan from Aloe barbadensis and its alleviation of murine colitis via coordinated ECM repair and microbiota-metabolism actions.

Carbohydrate polymers·2026
Same author

Maladaptive reorganization of mediodorsal thalamus as a central mechanism in neuropathic pain-related sleep disorders.

Military Medical Research·2026
Same author

Design, Synthesis, Activity, and Mechanism of Novel Spirocyclic Butenolide Derivatives Containing Thiazolylhydrazone as Potential Fungicides.

Journal of agricultural and food chemistry·2026
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 Experiment Video

Updated: Mar 6, 2026

An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers
09:49

An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers

Published on: October 23, 2018

16.6K

Ultrashort electron pulse generation with single-femtosecond-level jitter.

Jiaqi Zheng1, Dace Su1, Xie He1

  • 1Key Laboratory for Laser Plasmas (Ministry of Education), Collaborative Innovation Center of IFSA (CICIFSA), Tsung-Dao Lee Institute, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.

Science Advances
|March 4, 2026
PubMed
Summary

A novel terahertz (THz)-driven device achieves ultrashort electron pulses (50 fs) with minimal timing jitter (1.4 fs). This breakthrough enhances ultrafast electron diffraction (UED) and solves laser-accelerator synchronization challenges.

More Related Videos

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

12.1K
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

10.3K

Related Experiment Videos

Last Updated: Mar 6, 2026

An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers
09:49

An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers

Published on: October 23, 2018

16.6K
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

12.1K
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

10.3K

Area of Science:

  • Physics
  • Materials Science
  • Engineering

Background:

  • Precise synchronization and short electron bunches are crucial for time-resolved techniques.
  • Existing methods face challenges in achieving femtosecond-level electron pulse durations and timing stability.

Purpose of the Study:

  • To develop a single terahertz (THz)-driven device for electron chopping and compression.
  • To significantly reduce electron pulse duration and timing jitter for advanced applications.

Main Methods:

  • Utilized a single THz-driven device for electron chopping and compression.
  • Implemented a beam tilting correction using a tilted antenna for further bunch compression.
  • Sustained performance over an hour to demonstrate stability.

Main Results:

  • Achieved 50-femtosecond electron pulses with near-femtocoulomb charge and 1.4-femtosecond timing jitter.
  • Demonstrated a 35-fold reduction in pulse duration and a 10-fold improvement in jitter.
  • Compressed bunches down to 6 femtoseconds and reduced timing jitter to the few-femtosecond level.

Conclusions:

  • The THz-driven device offers a promising solution for synchronizing radio frequency accelerators and optical lasers.
  • This advancement enables jitter-free ultrafast electron diffraction (UED) with attosecond temporal resolution.
  • The technique significantly enhances modern ultrafast applications requiring precise timing.