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

2D NMR: Overview of Heteronuclear Correlation Techniques01:18

2D NMR: Overview of Heteronuclear Correlation Techniques

Heteronuclear correlation spectroscopy is an analytical technique that investigates the coupling between different types of nuclei, often a proton and an X-nucleus, such as carbon-13 or nitrogen-15. This method is commonly used in nuclear magnetic resonance (NMR) spectroscopy to gain insights into complex chemical compounds' structural and compositional aspects. A typical heteronuclear correlation spectrum displays X-nucleus chemical shifts on one axis and a proton spectrum on the other axis.
2D NMR: Homonuclear Correlation Spectroscopy (COSY)01:06

2D NMR: Homonuclear Correlation Spectroscopy (COSY)

Homonuclear correlation spectroscopy, or COSY, is a 2-dimensional NMR technique that provides information about coupled protons. Typically, the geminal and vicinal coupling are observed. For example, consider the COSY spectrum of ethyl acetate, where its 1D proton NMR spectrum is plotted along the vertical and horizontal axes with their corresponding chemical shift scale. Three spots on the diagonal corresponding to the three peaks in the 1D proton spectrum are called diagonal peaks. The COSY...
2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)01:19

2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)

Heteronuclear single-quantum correlation spectroscopy (HSQC) is a 2D NMR technique that reveals one-bond correlations between hydrogen and a heteronucleus. The HSQC experiment is similar to the heteronuclear correlation experiment (HETCOR) but is more sensitive. In the HSQC spectrum, the proton chemical shift is plotted on the horizontal F2 axis, while the 13C chemical shift is plotted on the vertical F1 axis. The corresponding proton and 13C spectra are also shown. The HSQC contour plot does...
2D NMR: Overview of Homonuclear Correlation Techniques01:16

2D NMR: Overview of Homonuclear Correlation Techniques

Homonuclear correlation spectroscopy (COSY) is a powerful technique used in Nuclear Magnetic Resonance (NMR) spectroscopy to study the correlations between nuclei of the same type within a molecule. It provides information about scalar couplings between adjacent nuclei, which helps determine connectivity and structural information. There are several COSY variants, each with its unique strengths and experimental parameters.
COSY90 is the standard two-dimensional (2D) COSY experiment that...
IR Spectroscopy: Molecular Vibration Overview01:24

IR Spectroscopy: Molecular Vibration Overview

When Infrared (IR) radiation passes through a covalently bonded molecule, the bonds transition from lower to higher vibrational levels. The fundamental vibrational motions that result in infrared absorption can be classified as stretching or bending vibrations.
Stretching vibrations are vibrational motions that occur along the bond line, changing the bond length or distance between two bonded atoms. They are further distinguished as symmetric or asymmetric. In symmetric stretching, the...
Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...

You might also read

Related Articles

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

Sort by
Same author

Quantification of mitral regurgitation--comparison of the proximal flow convergence method and the jet area method.

Clinical cardiology·1995
Same author

[The effect of valproic acid monotherapy on behavior and cognitive performance of children with idiopathic generalized epilepsy].

Zeitschrift fur Kinder- und Jugendpsychiatrie·1995
Same author

[Growth determination in the premature using knemometry].

Kinderkrankenschwester : Organ der Sektion Kinderkrankenpflege·1995
Same author

[Accident with protective gloves. Case report].

Der Hautarzt; Zeitschrift fur Dermatologie, Venerologie, und verwandte Gebiete·1995
Same author

[Residual postoperative pneumothorax: harmless radiological finding or complication-prone diagnosis?].

Schweizerische medizinische Wochenschrift·1995
Same author

Glomerular permselectivity in proteinuric patients after kidney transplantation.

The Journal of clinical investigation·1995
Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026
Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026
Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026
Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026
Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026
Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026
See all related articles

Related Experiment Video

Updated: Jul 7, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Low-coherence heterodyne photon correlation spectroscopy.

J H Johnson, S L Siefken, A Schmidt

    Applied Optics
    |February 15, 2008
    PubMed
    Summary
    This summary is machine-generated.

    We developed a new low-coherence heterodyne photon correlation spectroscopy (PCS) method. This technique enables the study of concentrated colloidal suspensions by minimizing multiple light scattering effects.

    More Related Videos

    High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
    10:40

    High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

    Published on: June 28, 2016

    Related Experiment Videos

    Last Updated: Jul 7, 2026

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
    07:56

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

    Published on: September 5, 2019

    High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
    10:40

    High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

    Published on: June 28, 2016

    Area of Science:

    • Colloidal science
    • Optical spectroscopy
    • Materials science

    Background:

    • Photon correlation spectroscopy (PCS) is standard for studying Brownian motion in dilute colloidal suspensions.
    • Standard PCS is limited by multiple light scattering in concentrated samples.

    Purpose of the Study:

    • To introduce a novel low-coherence heterodyne PCS technique.
    • To enable the investigation of concentrated colloidal suspensions, overcoming limitations of standard PCS.

    Main Methods:

    • Utilized low-coherence optical heterodyne interferometry.
    • Developed a method to suppress multiple light scattering.
    • Focused on preferential detection of single-scattering events.

    Main Results:

    • Successfully applied PCS to colloidal suspensions of higher concentration than previously possible.
    • Demonstrated effective suppression of multiple light scattering.
    • Enabled direct investigation of dynamics in concentrated systems.

    Conclusions:

    • The new low-coherence heterodyne PCS technique expands the applicability of PCS to concentrated colloidal systems.
    • This method offers a powerful tool for studying colloidal dynamics in previously inaccessible regimes.