Dynamic control of hybrid grafted perfect vector vortex beams

Area of Science:

• Optics and Photonics
• Metamaterials
• Beam Shaping

Background:

• Perfect vector vortex beams (PVVBs) are of significant interest for their unique optical properties.
• Existing methods for generating PVVBs have limitations in the number of topological charges (TCs) and lack dynamic control.
• Dynamic control of PVVBs is a critical unmet need for advanced optical applications.

Purpose of the Study:

• To propose and experimentally demonstrate hybrid grafted perfect vector vortex beams (GPVVBs).
• To achieve dynamic control over these novel beams.
• To enhance design flexibility and expand the applicability of PVVBs.

Main Methods:

• Generation of GPVVBs via superposition of grafted perfect vortex beams with a multifunctional metasurface.
• Utilizing multiple TCs to achieve spatially variant polarization changes.
• Implementing dynamic control using a rotating half-wave plate.

Main Results:

• Successful generation and experimental demonstration of hybrid GPVVBs.
• Exhibition of spatially variant polarization change rates due to increased TCs.
• Demonstration of dynamic control over the generated GPVVBs.
• Creation of beams containing multiple GPVVBs for enhanced design flexibility.

Conclusions:

• The proposed hybrid GPVVBs offer enhanced design flexibility and overcome limitations of traditional PVVBs.
• Dynamic control of GPVVBs has been successfully achieved, opening new possibilities.
• These dynamic GPVVBs hold potential for applications in optical encryption, dense data communication, and particle manipulation.