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Related Concept Videos

Magnetic Field Lines01:19

Magnetic Field Lines

The representation of magnetic fields by magnetic field lines is very useful in visualizing the strength and direction of the magnetic field. Each of the magnetic field lines forms a closed loop. The field lines emerge from the north pole (N), loop around to the south pole (S), and continue through the bar magnet back to the north pole.
Magnetic field lines follow several hard-and-fast rules:
Proteomics01:33

Proteomics

A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...

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Related Experiment Video

Updated: Jul 4, 2026

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
07:42

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Published on: July 20, 2022

Mapping giant magnetic fields around dense solid plasmas by high-resolution magneto-optical microscopy.

Jaivardhan Sinha1, Shyam Mohan, S S Banerjee

  • 1Department of Physics, Indian Institute of Technology, Kanpur-208016, U. P., India.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|June 4, 2008
PubMed
Summary

Researchers mapped magnetic fields around laser-generated plasmas using magneto-optical microscopy. This revealed axial magnetic fields, indicating plasma angular momentum.

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Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
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Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

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Last Updated: Jul 4, 2026

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
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Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

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Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
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Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

Area of Science:

  • Plasma Physics
  • Laser-Matter Interaction
  • Magnetohydrodynamics

Background:

  • Intense laser irradiation of materials can generate dense plasmas.
  • Understanding magnetic field generation in laser-produced plasmas is crucial for various applications.
  • Magnetic tapes offer a unique medium for studying laser-plasma interactions.

Purpose of the Study:

  • To investigate the spatial distribution of magnetic fields around laser-generated plasmas.
  • To explore the effect of intense laser irradiation on magnetic tapes.
  • To use magnetic field mapping as a diagnostic for plasma properties.

Main Methods:

  • Utilizing high-sensitivity magneto-optical microscopy.
  • Irradiating magnetic tapes with intense, p-polarized laser pulses (10^16 W cm^-2, 100 fs).
  • Analyzing the resulting magnetic field distributions.

Main Results:

  • Evidence for the generation of axial magnetic fields around the plasma.
  • Detailed mapping of the spatial distribution of these magnetic fields.
  • Correlation between magnetic field structure and plasma characteristics.

Conclusions:

  • Laser-generated plasmas exhibit significant axial magnetic fields.
  • The distribution of these fields provides insights into plasma dynamics.
  • The study provides evidence for angular momentum within the laser-generated plasma.