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Field component modulation of vortex beams in uniaxial crystals driven by angular and topological charge dependencies
Aldsoky Albadry1, Mamdouh Shams El-Din2, Mohamed Nawareg2
1Department of Physics, Faculty of Science, Damietta University, Damietta, 34511, Egypt. aldsokyalbadry@du.edu.eg.
We studied how vortex-Gaussian beams propagate through rutile crystals. Beam properties, like polarization and field components, change based on the crystal
Area of Science:
- Optics and Photonics
- Condensed Matter Physics
Background:
- Vortex-Gaussian beams possess unique polarization properties.
- Uniaxial crystals exhibit anisotropic optical behavior.
Purpose of the Study:
- To investigate the propagation dynamics of vortex-Gaussian beams in rutile crystals.
- To map the influence of propagation angle and topological charge on beam characteristics.
Main Methods:
- Utilized a full vectorial numerical model for simulation.
- Analyzed transverse and longitudinal electric-field components.
- Examined phase distributions and topological charge effects.
Main Results:
- Angle and topological charge (M) significantly modulate electric-field components.
- Field components amplify predictably with increasing M.
- Longitudinal component shows M-dependent oscillations; transverse component peaks near parallel propagation.
- Anisotropy reduces longitudinal-field phase winding.
Conclusions:
- Propagation angle, crystal anisotropy, and vortex charge collectively shape light's vectorial structure.
- Findings are relevant for optical manipulation and beam generation applications.
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