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

IR Absorption Frequency: Hybridization01:21

IR Absorption Frequency: Hybridization

1.5K
Hydrocarbons such as alkanes, alkenes, and alkynes show characteristic C–H stretching absorption bands. These IR stretching frequencies depend on the hybridization of the involved carbon atom and can be explained in terms of the s character of each hybridized atomic orbital.
Among the sp, sp2, and sp3 hybridized orbitals, sp orbitals have the maximum s character (50%). Consequently, the electrons are held more closely to the nucleus, resulting in stronger and shorter C–H bonds that...
1.5K
Standing Waves in a Cavity01:28

Standing Waves in a Cavity

1.6K
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
1.6K
Atomic Nuclei: Larmor Precession Frequency01:11

Atomic Nuclei: Larmor Precession Frequency

3.5K
The earth's gravitational field produces a 'twisting force' perpendicular to the angular momentum of a spinning mass (such as a spinning top) that causes the mass to 'wobble' around the gravitational field axis in a phenomenon called precession. Similarly, the magnetic moment (μ) of a spinning nucleus precesses due to an external magnetic field directed along the z-axis. The precession of the magnetic moment vector about the magnetic field is called Larmor precession,...
3.5K
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences01:17

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

2.0K
A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.
2.0K
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)01:20

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

1.8K
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...
1.8K
IR Absorption Frequency: Delocalization01:04

IR Absorption Frequency: Delocalization

1.7K
Electron delocalization refers to the distribution of electrons across multiple atoms within a molecule rather than being confined to a single atom or bond. This phenomenon is common in systems with conjugated bonds—structures where alternating single and double bonds allow π-electrons to move freely across the network. The movement of electrons stabilizes the molecule and can affect various chemical properties, including vibrational frequencies observed in IR spectroscopy.
In IR...
1.7K

You might also read

Related Articles

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

Sort by
Same author

Simple tunable phase-locked lasers for quantum technologies.

EPJ quantum technology·2026
Same author

Stokes and skyrmion tensors and their application to structured light.

Journal of the Optical Society of America. A, Optics, image science, and vision·2026
Same author

Live magnetomyography and robotic-hand proxy control using a wearable triaxial optically pumped magnetometer.

Scientific reports·2026
Same author

High-Resolution Atomic Magnetometer-Based Imaging of Integrated Circuits and Batteries.

IEEE transactions on instrumentation and measurement·2026
Same author

Intrinsic atomic calibration of oscillating magnetic fields in ULF and VLF bands.

The Review of scientific instruments·2026
Same author

Practical primary thermometry via alkali-metal-vapour Doppler broadening.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2026

Related Experiment Video

Updated: Mar 21, 2026

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

13.3K

Cavity-enhanced frequency up-conversion in rubidium vapor.

Rachel F Offer, Johnathan W C Conway, Erling Riis

    Optics Letters
    |May 14, 2016
    PubMed
    Summary

    Researchers developed a ring cavity to boost blue light power and narrow its linewidth for rubidium studies. This overcomes limitations of previous methods, enabling high power and narrow linewidth simultaneously.

    More Related Videos

    Hyperpolarized Xenon for NMR and MRI Applications
    16:20

    Hyperpolarized Xenon for NMR and MRI Applications

    Published on: September 6, 2012

    20.3K
    High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
    07:55

    High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

    Published on: September 22, 2017

    10.8K

    Related Experiment Videos

    Last Updated: Mar 21, 2026

    Gradient Echo Quantum Memory in Warm Atomic Vapor
    10:00

    Gradient Echo Quantum Memory in Warm Atomic Vapor

    Published on: November 11, 2013

    13.3K
    Hyperpolarized Xenon for NMR and MRI Applications
    16:20

    Hyperpolarized Xenon for NMR and MRI Applications

    Published on: September 6, 2012

    20.3K
    High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
    07:55

    High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

    Published on: September 22, 2017

    10.8K

    Area of Science:

    • Atomic, Molecular, and Optical Physics
    • Laser Physics
    • Nonlinear Optics

    Background:

    • Four-wave mixing in rubidium vapor is a method for generating blue light.
    • High output power in cavity-free systems can lead to linewidth broadening.
    • Achieving both high power and narrow linewidth simultaneously is challenging.

    Purpose of the Study:

    • To report the first use of a ring cavity for enhancing blue light output power and narrowing its linewidth.
    • To overcome the power broadening limitation in cavity-free four-wave mixing systems.
    • To enable tunable, narrow-linewidth blue light for applications in rubidium studies.

    Main Methods:

    • Utilizing a ring cavity in conjunction with a rubidium vapor cell.
    • Generating blue light via four-wave mixing.
    • Measuring output power and linewidth of the generated blue light.

    Main Results:

    • The ring cavity successfully enhanced output power and narrowed the linewidth to below 1 MHz.
    • The cavity mitigated power broadening, allowing high power and narrow linewidth concurrently.
    • The generated blue light was widely tunable over the Rb 85S1/2F=3→6P3/2 transition.

    Conclusions:

    • A ring cavity is an effective method for producing high-power, narrow-linewidth blue light from four-wave mixing in rubidium.
    • This technique overcomes previous limitations, enabling simultaneous achievement of high power and narrow linewidth.
    • The tunable, narrow-linewidth blue light is suitable for near-resonant rubidium studies, including laser cooling.