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

Matrix-Assisted Laser Desorption Ionization (MALDI)01:08

Matrix-Assisted Laser Desorption Ionization (MALDI)

1.3K
Matrix-assisted laser desorption ionization (MALDI) is a powerful analytical technique used in mass spectrometry. It enables the identification and characterization of various biomolecules, including proteins, peptides, nucleic acids, and carbohydrates. MALDI is an ionization technique, widely employed in biological and medical research, as well as in fields like pharmacology and biochemistry.The analyte of interest, a biomolecule or a mixture of biomolecules, is mixed with a suitable matrix...
1.3K
Mass Spectrum: Interpretation01:24

Mass Spectrum: Interpretation

3.7K
An unknown compound can be established by identifying the molecular ion peak in the mass spectrum. The molecular ion peak is often weak or absent due to the predominance of fragmentation in high-energy electron beams. In such cases, a soft-energy electron beam can be used to scan the spectrum to enhance the intensity of the molecular ion peak. Additionally, chemical ionization, field ionization, and desorption ionization spectra are used to obtain a relatively intense molecular ion peak.To...
3.7K
Chemical Ionization (CI) Mass Spectrometry01:21

Chemical Ionization (CI) Mass Spectrometry

1.7K
The molecular ion peak of a molecule in the mass spectrum provides vital information for molecular identification. However, conventional electron impact ionization can lead to the rapid dissociation of some molecular ions before they reach the detector. A milder ionization method is required to increase the lifetime of such ionized analyte molecules. Chemical ionization (CI) is a gas-phase protonation reaction useful for mass-analyzing analyte molecules that are easily protonated to yield the...
1.7K
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

831
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...
831

You might also read

Related Articles

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

Sort by
Same author

Correlation and Prognostic Assessment of Low T3 Syndrome and Norepinephrine Dosage for Patients with Sepsis: A Retrospective Single-Center (Cohort) Study.

International journal of general medicine·2022
Same author

A molecular device providing a remarkable spin filtering effect due to the central molecular stretch caused by lateral zigzag graphene nanoribbon electrodes.

Physical chemistry chemical physics : PCCP·2020
Same author

Comparative pharmacokinetics of chlorogenic acid after oral administration in rats.

Journal of pharmaceutical analysis·2018
Same author

Structure and magnetic properties of icosahedral Pd<sub>x</sub>Ag<sub>13-x</sub> (x = 0-13) clusters.

Scientific reports·2017
Same author

Controllable Photovoltaic Effect of Microarray Derived from Epitaxial Tetragonal BiFeO<sub>3</sub> Films.

ACS applied materials & interfaces·2017
Same author

Local Magnetoelectric Effect in La-Doped BiFeO3 Multiferroic Thin Films Revealed by Magnetic-Field-Assisted Scanning Probe Microscopy.

Nanoscale research letters·2016

Related Experiment Video

Updated: Mar 12, 2026

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

Nonsequential double ionization with mid-infrared laser fields.

Ying-Bin Li1, Xu Wang2, Ben-Hai Yu3

  • 1National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China.

Scientific Reports
|November 19, 2016
PubMed
Summary

Atomic nonsequential double ionization (NSDI) using mid-infrared fields shows complex electron-core interactions, favoring second-returning electron trajectories. This differs from near-infrared fields, shutting down some ionization channels and creating unequal electron energies.

More Related Videos

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

7.4K
Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

6.6K

Related Experiment Videos

Last Updated: Mar 12, 2026

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
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

7.4K
Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

6.6K

Area of Science:

  • Atomic Physics
  • Quantum Mechanics
  • Strong-Field Physics

Background:

  • Nonsequential double ionization (NSDI) is a complex process in strong laser fields.
  • Previous studies primarily focused on near-infrared (near-IR) laser fields.
  • The role of electron-core interactions in NSDI remains an active area of research.

Purpose of the Study:

  • To theoretically investigate atomic NSDI using mid-infrared (mid-IR) laser fields.
  • To compare NSDI dynamics under mid-IR and near-IR laser fields.
  • To explore the influence of electron-core interplays on NSDI pathways.

Main Methods:

  • A full-dimensional Monte Carlo classical ensemble method was employed.
  • Theoretical calculations were performed for atomic systems exposed to laser fields.
  • Simulations compared NSDI outcomes for mid-IR and near-IR laser fields.

Main Results:

  • Mid-IR fields lead to NSDI dominated by second-returning electron trajectories, unlike near-IR fields (first-returning).
  • Complex NSDI channels, such as recollision-excitation-with-subsequent-ionization (RESI), are suppressed in mid-IR fields.
  • The final energies of the two ionized electrons exhibit significant inequality under mid-IR fields.

Conclusions:

  • Mid-IR laser fields fundamentally alter NSDI dynamics compared to near-IR fields.
  • The observed electron-core interplays result in distinct ionization pathways.
  • Novel electron-electron momentum correlation spectra are predicted, offering experimental verification avenues.