Related Experiment Video
Updated: Jul 9, 2025
12:14
The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
21.8K
Atmospheric turbulence effects on hollow Gaussian Schell-model array beams.
Summary
Hollow array beams maintain stable profiles in free space but distort in atmospheric turbulence. Turbulence degrades these beams, causing them to lose their hollow array structure and become Gaussian-like.
Area of Science:
- Optical physics
- Wave propagation
- Atmospheric optics
Background:
- Hollow array beams offer unique intensity profiles for various applications.
- Understanding beam behavior in atmospheric turbulence is crucial for optical communication and remote sensing.
Purpose of the Study:
- To comparatively analyze the propagation of circular and rectangular hollow array beams in free space and atmospheric turbulence.
- To investigate the impact of atmospheric turbulence on the spectral density and structural integrity of these beams.
Main Methods:
- Derivation of analytical formulas for the cross-spectral density function in linear isotropic random media.
- Examination of spectral density behavior under different propagation conditions.
- Analysis of the effects of turbulence parameters on beam profiles.
Main Results:
- Hollow array beams exhibit stable, dimension-independent profiles and lobes in free space.
- In atmospheric turbulence, these beams maintain their hollow array structure only over short distances.
- Turbulence-induced distortions cause the beams to lose their hollow array profiles and approximate a Gaussian shape.
Conclusions:
- Atmospheric turbulence significantly degrades the structural integrity of hollow array beams.
- The findings highlight the limitations of using hollow array beams in turbulent atmospheric environments.
- Further research into turbulence mitigation techniques may be necessary for practical applications.
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