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

Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences01:17

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

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.

You might also read

Related Articles

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

Sort by
Same author

Universal convolution from wave dynamics: photonic processing and encryption in synthetic dimension.

Nature communications·2026
Same author

Quantum Trajectory Separation and Attosecond Mapping in Liquid High-Harmonic Generation.

Physical review letters·2026
Same author

Circularly Polarized Quasimonochromatic High Harmonic Generation.

Physical review letters·2026
Same author

Attosecond Vortex Photoelectron Holography for Probing Phase-Encoded Chirality.

Physical review letters·2026
Same author

Instantaneous Optical Selection Rule for Independent Control of Valley Currents.

Physical review letters·2026
Same author

Quasi-Phase-Matched Frequency Conversion in van der Waals Semiconductors: Thicker May Not Be Better.

Nano letters·2026

Related Experiment Video

Updated: Jun 16, 2026

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

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Controlling nonsequential double ionization via two-color few-cycle pulses.

Yueming Zhou1, Qing Liao, Qingbin Zhang

  • 1Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, P. R. China.

Optics Express
|February 23, 2010
PubMed
Summary

Controlling helium

Area of Science:

  • Quantum mechanics
  • Atomic physics
  • Ultrafast laser science

Background:

  • Nonsequential double ionization (NSDI) is a fundamental process in atomic physics.
  • Understanding electron correlation in NSDI is crucial for attosecond science.
  • Few-cycle laser pulses offer precise control over electron dynamics.

Purpose of the Study:

  • To demonstrate control over NSDI dynamics in helium using two-color few-cycle pulses.
  • To investigate the influence of relative pulse phase on NSDI.
  • To reveal novel electron correlation structures.

Main Methods:

  • Utilizing classical three-dimensional ensembles.
  • Employing two-color few-cycle laser pulses.
  • Varying the relative phase between the two laser pulses.

More Related Videos

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

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
08:22

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization

Published on: August 6, 2018

Related Experiment Videos

Last Updated: Jun 16, 2026

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

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

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

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
08:22

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization

Published on: August 6, 2018

Main Results:

  • Achieved control over NSDI dynamics by adjusting the relative pulse phase.
  • Restricted recollisions to a specific attosecond time window before field extremum.
  • Observed a novel, narrow arc-like structure in the correlated electron momentum distribution.

Conclusions:

  • The observed arc-like structure reveals a new type of energy correlation between electrons in NSDI.
  • This study demonstrates a method for controlling electron emission dynamics in strong-field ionization.
  • The findings open new avenues for probing and manipulating electron correlation with tailored laser fields.