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

Gauss's Law: Problem-Solving01:10

Gauss's Law: Problem-Solving

1.7K
Gauss's law helps determine electric fields even though the law is not directly about electric fields but electric flux. In situations with certain symmetries (spherical, cylindrical, or planar) in the charge distribution, the electric field can be deduced based on the knowledge of the electric flux. In these systems, we can find a Gaussian surface S over which the electric field has a constant magnitude. Furthermore, suppose the electric field is parallel (or antiparallel) to the area...
1.7K
Gauss's Law in Dielectrics01:17

Gauss's Law in Dielectrics

4.3K
Consider a polar dielectric placed in an external field. In such a dielectric, opposite charges on adjacent dipoles neutralize each other, such that the net charge within the dielectric is zero. When a polar dielectric is inserted in between the capacitor plates, an electric field is generated due to the presence of net charges near the edge of the dielectric and the metal plates interface. Since the external electrical field merely aligns the dipoles, the dielectric as a whole is neutral. An...
4.3K
Gauss's Law01:07

Gauss's Law

7.2K
If a closed surface does not have any charge inside where an electric field line can terminate, then the electric field line entering the surface at one point must necessarily exit at some other point of the surface. Therefore, if a closed surface does not have any charges inside the enclosed volume, then the electric flux through the surface is zero. What happens to the electric flux if there are some charges inside the enclosed volume? Gauss's law gives a quantitative answer to this question.
7.2K
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

156
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
156
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

2.1K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
2.1K
Gauss's Law: Planar Symmetry01:27

Gauss's Law: Planar Symmetry

7.9K
A planar symmetry of charge density is obtained when charges are uniformly spread over a large flat surface. In planar symmetry, all points in a plane parallel to the plane of charge are identical with respect to the charges. Suppose the plane of the charge distribution is the xy-plane, and the electric field at a space point P with coordinates (x, y, z) is to be determined. Since the charge density is the same at all (x, y) - coordinates in the z = 0 plane, by symmetry, the electric field at P...
7.9K

You might also read

Related Articles

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

Sort by
Same author

Ablating Pellets for Areal Density Symmetry Control in Indirectly Driven Inertial Confinement Fusion Target Designs.

Physical review letters·2026
Same author

Kinetic study of strong shock waves in fully ionized plasmas.

Physical review. E·2026
Same author

Impact of increased smoothing by spectral dispersion bandwidth on stimulated Brillouin scattering in laser driven Hohlraums.

Optics express·2025
Same author

Particle-in-cell simulations of burning inertial confinement fusion capsule implosions.

Physical review. E·2025
Same author

Direct Experimental Proof of the Principal Role of Reduced High-Mode Hydrodynamic Mix in Recent Ignition Success on NIF.

Physical review letters·2025
Same author

First Demonstration of Improved Fusion Yield with Increased Compression through Reduced Adiabat in Inertial Confinement Fusion Experiments at the National Ignition Facility.

Physical review letters·2025

Related Experiment Video

Updated: Jun 23, 2025

Total Internal Reflection Absorption Spectroscopy TIRAS for the Detection of Solvated Electrons at a Plasma-liquid Interface
08:50

Total Internal Reflection Absorption Spectroscopy TIRAS for the Detection of Solvated Electrons at a Plasma-liquid Interface

Published on: January 24, 2018

13.7K

Inverse bremsstrahlung absorption rate for super-Gaussian electron distribution functions including plasma screening.

M Sherlock1, P Michel1, D J Strozzi1

  • 1Lawrence Livermore National Laboratory, Livermore, California 94550, USA.

Physical Review. E
|June 22, 2024
PubMed
Summary

New analytic expressions for the Coulomb logarithm in inverse bremsstrahlung absorption improve accuracy. These findings refine laser energy absorption calculations in plasmas, impacting simulations.

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

12.6K
Building Langmuir Probes and Emissive Probes for Plasma Potential Measurements in Low Pressure, Low Temperature Plasmas
08:10

Building Langmuir Probes and Emissive Probes for Plasma Potential Measurements in Low Pressure, Low Temperature Plasmas

Published on: May 25, 2021

4.1K

Related Experiment Videos

Last Updated: Jun 23, 2025

Total Internal Reflection Absorption Spectroscopy TIRAS for the Detection of Solvated Electrons at a Plasma-liquid Interface
08:50

Total Internal Reflection Absorption Spectroscopy TIRAS for the Detection of Solvated Electrons at a Plasma-liquid Interface

Published on: January 24, 2018

13.7K
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

12.6K
Building Langmuir Probes and Emissive Probes for Plasma Potential Measurements in Low Pressure, Low Temperature Plasmas
08:10

Building Langmuir Probes and Emissive Probes for Plasma Potential Measurements in Low Pressure, Low Temperature Plasmas

Published on: May 25, 2021

4.1K

Area of Science:

  • Plasma Physics
  • Laser-Plasma Interactions
  • Astrophysical Plasmas

Background:

  • Inverse bremsstrahlung is a key mechanism for laser energy absorption in plasmas.
  • Previous models often approximate the Coulomb logarithm as constant, limiting accuracy.
  • The Langdon effect describes reduced absorption due to non-Maxwellian electron distributions.

Purpose of the Study:

  • To develop analytic expressions for the effective Coulomb logarithm in inverse bremsstrahlung.
  • To account for the velocity dependence of the Coulomb logarithm and laser intensity.
  • To provide more accurate absorption rate calculations under classical and quantum conditions.

Main Methods:

  • Derived analytic expressions for the effective Coulomb logarithm.
  • Incorporated velocity dependence and laser intensity into the Coulomb logarithm.
  • Considered super-Gaussian electron distribution functions and plasma screening effects.

Main Results:

  • The new expressions predict significant corrections to the Langdon effect and absorption rates.
  • Absorption rates can increase by up to 30% at low densities for super-Gaussian distributions.
  • Plasma screening can reduce absorption by a similar amount, creating competing effects.

Conclusions:

  • The derived analytic expressions offer a more accurate representation of laser energy absorption in plasmas.
  • These corrections are crucial for improving radiation-hydrodynamics simulations.
  • The findings highlight the importance of considering velocity-dependent Coulomb logarithms and plasma conditions.