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Related Concept Videos

Boundary Layer Characteristics01:18

Boundary Layer Characteristics

When a fluid encounters a solid surface, a boundary layer forms due to the interaction between the fluid's motion and the stationary surface. This phenomenon is characterized by a thin region adjacent to the surface where viscous forces dominate, influencing the fluid's velocity profile. The development of the boundary layer begins at the leading edge of the surface and evolves as the fluid moves downstream.As the fluid flows over the surface, friction between the fluid and the wall slows down...
Propagation of Waves01:07

Propagation of Waves

When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
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The de Broglie Wavelength02:32

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Related Experiment Video

Updated: Jul 13, 2026

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
09:41

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

Published on: June 9, 2016

Beam criterion for atmospheric propagation.

Olga Korotkova1, Emil Wolf

  • 1Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA. korotkov@pas.rochester.edu

Optics Letters
|August 3, 2007
PubMed
Summary
This summary is machine-generated.

A new criterion determines if a beam maintains its shape when traveling through atmospheric turbulence. This method works for both monochromatic and partially coherent beams, offering practical applications in optical systems.

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Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
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Area of Science:

  • Optics and Photonics
  • Atmospheric Physics

Background:

  • Wave propagation through turbulent media is a fundamental challenge in optics.
  • Maintaining beam quality is crucial for applications like free-space optical communication and remote sensing.

Purpose of the Study:

  • To introduce a novel criterion for assessing beam-shape retention in turbulent atmospheres.
  • To provide a tool for evaluating the robustness of different beam types against atmospheric distortion.

Main Methods:

  • Development of a mathematical criterion based on beam propagation theory.
  • Application of the criterion to both monochromatic and partially coherent beams.
  • Illustrative examples demonstrating the criterion's utility.

Main Results:

  • The proposed criterion effectively predicts whether a beam will maintain its beam-like form.
  • The criterion is applicable across a range of beam coherence properties.
  • Examples showcase the practical implementation and validation of the criterion.

Conclusions:

  • A reliable method is established for evaluating beam stability in turbulent environments.
  • The criterion offers a valuable tool for designing and optimizing optical systems operating in the atmosphere.