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Radial anisotropic twisted Hermite-Gaussian Schell-model beam array and its influence by turbulence effects
We introduce a novel radial anisotropic twisted Hermite-Gaussian Schell-model beam array (RATHGSMBA). This new partially coherent beam source exhibits unique splitting, rotation, and interference patterns in non-Kolmogorov turbulence.
Area of Science:
- Optics and Photonics
- Laser Physics
- Turbulence Research
Background:
- Partially coherent beams are crucial for various optical applications.
- Understanding beam propagation in turbulent media is essential for system design.
- Novel beam sources with controllable properties are in demand.
Purpose of the Study:
- To propose and analyze a new twisted partially coherent beam source: the radial anisotropic twisted Hermite-Gaussian Schell-model beam array (RATHGSMBA).
- To investigate the propagation characteristics of RATHGSMBA in non-Kolmogorov turbulence.
- To explore the potential applications of this new beam source.
Main Methods:
- Derivation of the analytical cross-spectral density function for RATHGSMBA.
- Simulation and analysis of beam propagation in simulated non-Kolmogorov turbulence.
- Examination of the effects of adjustable parameters on beam evolution.
Main Results:
- RATHGSMBA exhibits sub-beam splitting and uniform rotation during propagation.
- Adjacent sub-beams overlap due to divergence, creating complex interference.
- Far-field intensity distribution converges to a single array element profile due to dispersion.
Conclusions:
- The RATHGSMBA is a new class of customizable partially coherent sources.
- Adjustable parameters offer control over beam profile evolution.
- Potential applications include high-power lasers, optical communications, and optical manipulation.
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