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Generation of optical vortex array along arbitrary curvilinear arrangement.
Optics Express
|May 3, 2018
Summary
We developed a new method to create optical vortex arrays (OVAs) along custom paths. This technique allows for tunable phase singularities and can generate complex polarization patterns for applications like particle trapping.
Area of Science:
- Optics and Photonics
- Structured Light
- Beam Shaping
Background:
- Optical vortex arrays (OVAs) are crucial for applications like optical trapping.
- Generating complex OVA structures along arbitrary paths remains a challenge.
Purpose of the Study:
- To propose and demonstrate a novel method for creating curvilinear arranged optical vortex arrays (CA-OVAs).
- To enable tunable phase singularity and hybrid structures.
- To explore conversion into polarization vortex arrays.
Main Methods:
- Coaxial interference of two width-controllable component curves.
- Modified holographic beam shaping technique for component curve generation.
- Simulation and experimental validation.
Main Results:
- Successfully generated CA-OVAs along arbitrary curvilinear paths.
- Demonstrated tunable number of phase singularities per OVA.
- Achieved hybrid CA-OVAs and conversion to polarization vortex arrays.
- Validated the method through simulations and experiments.
Conclusions:
- The proposed method offers a flexible approach for generating complex structured vortex arrays.
- This technique has significant potential for applications such as multiple micro-particle trapping.
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