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

X-ray Crystallography02:18

X-ray Crystallography

26.1K
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
26.1K
UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

UV–Vis Spectroscopy: Molecular Electronic Transitions

2.8K
In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this...
2.8K
Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals01:17

Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals

3.4K
Ideally, an unpaired electron shows a single peak in the EPR spectrum due to the transition between the two spin energy states. However, coupling interactions can occur between the spins of the unpaired electron and any neighboring spin-active nuclei. This hyperfine coupling results in hyperfine splitting, where the EPR signal is split into multiplets. The signals split into 2nI + 1 peaks, where n is the number of equivalent nuclei and I is the nuclear spin. These splitting patterns provide...
3.4K
Electron Carriers01:24

Electron Carriers

91.7K
Electron carriers can be thought of as electron shuttles. These compounds can easily accept electrons (i.e., be reduced) or lose them (i.e., be oxidized). They play an essential role in energy production because cellular respiration is contingent on the flow of electrons.
Over the many stages of cellular respiration, glucose breaks down into carbon dioxide and water. Electron carriers pick up electrons lost by glucose in these reactions, temporarily storing and releasing them into the electron...
91.7K
X-ray Imaging01:24

X-ray Imaging

10.1K
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
10.1K
Electron Affinity03:07

Electron Affinity

43.2K
The electron affinity (EA) is the energy change for adding an electron to a gaseous atom to form an anion (negative ion).
43.2K

You might also read

Related Articles

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

Sort by
Same author

Denoising and iterative phase recovery reveal low-occupancy populations in protein crystals.

Communications biology·2025
Same author

Serial-femtosecond crystallography reveals how a phytochrome variant couples chromophore and protein structural changes.

Science advances·2025
Same author

XFEL Beamline Optical Instrumentation for Ultrafast Science.

The journal of physical chemistry. B·2024
Same author

Power Density Titration of Reversible Photoisomerization of a Fluorescent Protein Chromophore in the Presence of Thermally Driven Barrier Crossing Shown by Quantitative Millisecond Serial Synchrotron X-ray Crystallography.

Journal of the American Chemical Society·2024
Same author

Kilohertz droplet-on-demand serial femtosecond crystallography at the European XFEL station FXE.

Structural dynamics (Melville, N.Y.)·2024
Same author

Application of density matrix Wigner transforms for ultrafast macromolecular and chemical x-ray crystallography.

The Journal of chemical physics·2024
Same journal

A data-driven modeling study on the accurate identification of Doppler-free saturated absorption spectra in diatomic tellurium (130Te2).

The Journal of chemical physics·2026
Same journal

Anharmonic phonons via quantum thermal bath simulations.

The Journal of chemical physics·2026
Same journal

Quantum simulation of alignment dependent differential cross sections in co-propagating molecular beams at cold collision energies.

The Journal of chemical physics·2026
Same journal

Non-additive ion effects on the coil-globule equilibrium of a generic polymer in aqueous salt solutions.

The Journal of chemical physics·2026
Same journal

Insights into the unexpected small reduction of the temperature of maximum density of water by lithium chloride addition.

The Journal of chemical physics·2026
Same journal

Optical frequency comb double-resonance spectroscopy of the 9030-9175 cm-1 states of ethylene.

The Journal of chemical physics·2026
See all related articles

Related Experiment Video

Updated: Jan 28, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

10.1K

Coherent two-dimensional electronic-x-ray spectroscopy.

Jasper J van Thor1

  • 1Life Sciences Department, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom.

The Journal of Chemical Physics
|January 26, 2026
PubMed
Summary
This summary is machine-generated.

A new coherent two-dimensional nonlinear electronic-x-ray spectroscopy (2DEX) method reveals frequency correlations in molecular valence-core dynamics. This technique offers enhanced resolution for ultrafast spectroscopy experiments.

More Related Videos

Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
07:55

Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering

Published on: April 17, 2018

13.3K
Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

10.3K

Related Experiment Videos

Last Updated: Jan 28, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

10.1K
Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
07:55

Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering

Published on: April 17, 2018

13.3K
Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

10.3K

Area of Science:

  • Physical Chemistry
  • Chemical Physics
  • Spectroscopy

Background:

  • Ultrafast pump-probe time-resolved X-ray spectroscopy provides insights into molecular valence-core dynamics.
  • Current techniques offer limited resolution for complex electronic and core excitation correlations.

Purpose of the Study:

  • To introduce and theoretically evaluate a coherent two-dimensional nonlinear electronic-X-ray spectroscopy (2DEX) method.
  • To reveal frequency-frequency correlations for valence and core transition excitations in molecular systems.

Main Methods:

  • Adaptation of conventional optical pump-X-ray probe technique using phase-locked laser pulse pairs.
  • Theoretical calculation of four-wave signals using a response function approach.
  • Analysis of coherences and populations for ultrafast valence-core spectroscopy.

Main Results:

  • 2DEX successfully reveals frequency-frequency correlations for valence and core excitations.
  • Calculations demonstrate the ability to resolve stationary and oscillatory contributions to spectroscopic signals.
  • Method shows potential for resolving population and coherence contributions in the X-ray absorption near-edge structure (XANES) spectral region.

Conclusions:

  • Coherent 2DEX is a powerful, experimentally accessible technique for probing ultrafast molecular dynamics.
  • The method provides enhanced resolution for studying valence-core electronic and vibrational coherences.
  • 2DEX has significant potential for detailed characterization of molecular excited states.