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Control of orbital angular momentum with partially coherent vortex beams
Optics Letters
|August 2, 2019
Summary
Partially coherent beams offer flexible control over orbital angular momentum. This flexibility is achieved by adjusting beam parameters, showing potential for particle manipulation.
Area of Science:
- Optics and Photonics
- Quantum Information Science
Background:
- Partially coherent beams are crucial in optical manipulation.
- Vortex modes carry orbital angular momentum (OAM).
Purpose of the Study:
- To investigate the orbital angular momentum properties of partially coherent beams.
- To explore the control of OAM through beam parameter adjustments.
Main Methods:
- Constructing partially coherent beams via superposition of mutually incoherent vortex modes.
- Varying beam widths and topological charges of individual modes.
Main Results:
- Demonstrated flexible control over the orbital angular momentum.
- Identified significant potential for particle rotation and trapping applications.
Conclusions:
- Partially coherent beams provide a versatile platform for OAM manipulation.
- These beams hold promise for advanced applications in optical trapping and manipulation.
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