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

527
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...
527
¹³C NMR: ¹H–¹³C Decoupling01:04

¹³C NMR: ¹H–¹³C Decoupling

1.4K
The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
1.4K
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)01:15

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)

795
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...
795
Chemical Ionization (CI) Mass Spectrometry01:21

Chemical Ionization (CI) Mass Spectrometry

1.2K
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...
1.2K
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)01:20

¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

1.4K
When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...
1.4K
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview01:19

Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview

1.5K
In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then...
1.5K

You might also read

Related Articles

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

Sort by
Same author

First Measurement of Time-Dependent CP Violation in the Flavor-Changing Neutral-Current Decay B^{0}→K_{S}^{0}μ^{+}μ^{-}.

Physical review letters·2026
Same author

Measurement of the Top-Quark Production Cross Section and Charge Asymmetry at LHCb.

Physical review letters·2026
Same author

Elevated low-density lipoprotein cholesterol levels and prostate cancer risk: UK Biobank evidence.

World journal of urology·2026
Same author

Loneliness and social support mediate stress-depression in truck drivers.

Occupational medicine (Oxford, England)·2026
Same author

Evidence for the Collective Nature of Radial Flow in Pb+Pb Collisions with the ATLAS Detector.

Physical review letters·2026
Same author

[A case report of a family with Fabry's disease first diagnosed as myocardial ischemia].

Zhonghua xin xue guan bing za zhi·2026

Related Experiment Video

Updated: Dec 3, 2025

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

11.9K

Overcoming gas ionization limitations with divided-pulse nonlinear compression.

G W Jenkins, C Feng, J Bromage

    Optics Express
    |October 29, 2020
    PubMed
    Summary
    This summary is machine-generated.

    Divided-pulse nonlinear compression in hollow-core fibers overcomes plasma effects that degrade laser pulses. This technique enables scaling spectral broadening to higher energies and factors, with applications in multipass cells.

    More Related Videos

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

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

    10.0K
    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

    6.5K

    Related Experiment Videos

    Last Updated: Dec 3, 2025

    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

    11.9K
    Direct Imaging of Laser-driven Ultrafast Molecular Rotation
    10:52

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

    10.0K
    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

    6.5K

    Area of Science:

    • Nonlinear optics
    • Plasma physics
    • Fiber optics

    Background:

    • Kerr and plasma nonlinearities in hollow-core fibers can degrade output laser pulses.
    • Understanding these nonlinear effects is crucial for high-energy pulse manipulation.

    Purpose of the Study:

    • To investigate the impact of plasma nonlinearities on pulse propagation in hollow-core fibers.
    • To propose and evaluate divided-pulse nonlinear compression as a method to mitigate these plasma effects.
    • To demonstrate the potential for scaling spectral broadening to higher pulse energies.

    Main Methods:

    • Numerical simulations of nonlinear pulse propagation in hollow-core fibers.
    • Modeling of Kerr and plasma nonlinearities.
    • Implementation and analysis of the divided-pulse nonlinear compression technique.

    Main Results:

    • Plasma effects were shown to significantly degrade the output pulse quality.
    • Divided-pulse nonlinear compression effectively avoids plasma-induced degradation.
    • The proposed method allows for scaling spectral broadening to larger factors and higher pulse energies.

    Conclusions:

    • Divided-pulse nonlinear compression is a viable strategy to overcome plasma nonlinearities in hollow-core fibers.
    • This approach enables enhanced spectral broadening for high-energy pulses.
    • The technique is expected to be applicable to other systems, such as gas-filled multipass cells.