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

Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

1.5K
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
1.5K
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

1.1K
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
1.1K
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

91.5K
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...
91.5K
Electron Affinity03:07

Electron Affinity

43.1K
The electron affinity (EA) is the energy change for adding an electron to a gaseous atom to form an anion (negative ion).
43.1K

You might also read

Related Articles

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

Sort by
Same author

Self-referencing ultrafast wide-field pump-probe microscopy.

Nature communications·2025
Same author

Dynamic Behavior of Bound Interlayer Excitons in Interlayer-Doped Cs<sub>3</sub>Bi<sub>2</sub>Br<sub>9</sub> Vacancy-Ordered Perovskite.

ACS nano·2025
Same author

Nanoscale Plasmonic Heating-Induced Spatiotemporal Crystallization of Methylammonium Lead Halide Perovskite.

ACS nano·2025
Same author

Bayesian-recovered ultrafast dynamics in solids across four decades of time and energy.

The Journal of chemical physics·2025
Same author

Rapid Wide-Field Correlative Mapping of Electronic and Vibrational Ultrafast Dynamics in Solids.

ACS nano·2025
Same author

Nanoscopic acoustic vibrational dynamics of a single virus captured by ultrafast spectroscopy.

Proceedings of the National Academy of Sciences of the United States of America·2025
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
Same journal

Time reversal breaking of colloidal particles in cells.

The Journal of chemical physics·2026
See all related articles

Related Experiment Video

Updated: Jan 26, 2026

Direct Comparison of Hyperspectral Stimulated Raman Scattering and Coherent Anti-Stokes Raman Scattering Microscopy for Chemical Imaging
09:46

Direct Comparison of Hyperspectral Stimulated Raman Scattering and Coherent Anti-Stokes Raman Scattering Microscopy for Chemical Imaging

Published on: April 28, 2022

4.7K

Four-dimensional coherent electronic Raman spectroscopy.

Elad Harel1

  • 1Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.

The Journal of Chemical Physics
|April 24, 2017
PubMed
Summary
This summary is machine-generated.

A new four-dimensional coherent spectroscopy method directly correlates electronic and vibrational states in molecules. This advanced technique overcomes limitations of lower-order methods, revealing complex molecular dynamics with unprecedented clarity.

More Related Videos

Fabricating a UV-Vis and Raman Spectroscopy Immunoassay Platform
09:02

Fabricating a UV-Vis and Raman Spectroscopy Immunoassay Platform

Published on: November 10, 2016

10.8K
Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
07:44

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems

Published on: April 28, 2016

15.5K

Related Experiment Videos

Last Updated: Jan 26, 2026

Direct Comparison of Hyperspectral Stimulated Raman Scattering and Coherent Anti-Stokes Raman Scattering Microscopy for Chemical Imaging
09:46

Direct Comparison of Hyperspectral Stimulated Raman Scattering and Coherent Anti-Stokes Raman Scattering Microscopy for Chemical Imaging

Published on: April 28, 2022

4.7K
Fabricating a UV-Vis and Raman Spectroscopy Immunoassay Platform
09:02

Fabricating a UV-Vis and Raman Spectroscopy Immunoassay Platform

Published on: November 10, 2016

10.8K
Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
07:44

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems

Published on: April 28, 2016

15.5K

Area of Science:

  • Quantum mechanics
  • Molecular spectroscopy
  • Physical chemistry

Background:

  • Molecular properties depend on quantum-mechanical correlations.
  • Traditional optical methods average signals, obscuring detailed dynamics.
  • Distinguishing electronic and vibrational state correlations is challenging.

Purpose of the Study:

  • To introduce a novel four-dimensional (4D) coherent spectroscopic method.
  • To directly correlate electronic and vibrational states within molecular systems.
  • To overcome signal averaging issues in lower-dimensionality measurements.

Main Methods:

  • Developed a four-dimensional coherent spectroscopic technique.
  • Formulated optical response theory for resonant and non-resonant interactions.
  • Utilized resonance to select specific electronic state coherences.

Main Results:

  • Successfully distinguished coherent dynamics on ground and excited electronic states.
  • The 4D method is free from lower-order signal artifacts.
  • Demonstrated the manifestation of anharmonicity, vibronic coupling, and excited-state curvature in 4D spectra.

Conclusions:

  • The 4D coherent spectroscopy provides direct insights into molecular quantum dynamics.
  • This method offers a significant advancement over existing spectroscopic techniques.
  • The theoretical framework supports experimental findings and future applications.