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

Nuclear Fusion02:45

Nuclear Fusion

The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons.
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
Noble Gases02:54

Noble Gases


The elements in group 18 are noble gases (helium, neon, argon, krypton, xenon, and radon). They earned the name “noble” because they were assumed to be nonreactive since they have filled valence shells. In 1962, Dr. Neil Bartlett at the University of British Columbia proved this assumption to be false.
Emission Spectra02:39

Emission Spectra

When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
Atomic Absorption Spectroscopy: Radiation and Light Sources01:13

Atomic Absorption Spectroscopy: Radiation and Light Sources

Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...

You might also read

Related Articles

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

Sort by
Same author

A review of chronic pain syndromes: etiology, transmission, and treatment.

CRNA : the clinical forum for nurse anesthetists·1993
Same author

Liver concentrations of vitamin A and carotenoids, as a function of age and other parameters, of American children who died of various causes.

The American journal of clinical nutrition·1984
Same author

The periaqueductal gray-raphe magnus projection contains somatostatin, neurotensin and serotonin but not cholecystokinin.

Brain research·1983
Same author

The location of brainstem neurons which project bilaterally to the spinal trigeminal nuclei as demonstrated by the double fluorescent retrograde tracer technique.

Brain research·1983

Related Experiment Video

Updated: Jun 20, 2026

Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident
09:18

Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident

Published on: December 14, 2017

Radiative-collision laser amplifier in helium-nitrogen.

L W Downes, S D Marcum, R A Tilton

    Optics Letters
    |August 28, 2009
    PubMed
    Summary

    This study presents a high-efficiency ultraviolet laser amplifier using a He-N2 system. It achieves ~15% efficiency via photon-induced collisions and autoionization under intense photon fields.

    Area of Science:

    • Atomic and Molecular Physics
    • Laser Physics
    • Quantum Optics

    Background:

    • Radiative collisions, or photon-induced collisions, are a key phenomenon in atomic and molecular interactions.
    • Autoionization in excited molecular states, such as N(2)*(X, nu), can be leveraged for energy transfer and light generation.
    • Developing efficient ultraviolet (UV) laser systems is crucial for various scientific and technological applications.

    Purpose of the Study:

    • To propose and model a novel high-efficiency ultraviolet laser amplifier system.
    • To investigate the potential of using helium-nitrogen (He-N2) mixtures for UV amplification.
    • To explore the application of radiative collisions and autoionizing properties for enhanced laser performance.

    Main Methods:

    • Utilized a theoretical model based on rate-equation analysis.

    More Related Videos

    Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
    07:17

    Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

    Published on: August 1, 2017

    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

    Related Experiment Videos

    Last Updated: Jun 20, 2026

    Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident
    09:18

    Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident

    Published on: December 14, 2017

    Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
    07:17

    Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

    Published on: August 1, 2017

    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

  • Simulated the behavior of a He-N2 system under intense photon fields (>1 MW/cm(2)).
  • Focused on photon-induced collisions tuned to specific transitions and the autoionizing properties of N(2)*(X, nu).

    • Main Results:

    • Demonstrated a high-efficiency (~15%) ultraviolet laser amplifier.
    • Showcased the effectiveness of using intense photon fields to drive the amplification process.
    • Validated the theoretical model through presented calculations.

    Conclusions:

    • The He-N2 system, utilizing radiative collisions and autoionization, is a promising candidate for efficient UV laser amplification.
    • Intense, tuned photon fields are critical for achieving high amplification efficiencies in this system.
    • Rate-equation analysis provides a viable framework for modeling and understanding such laser systems.