Simultaneous generation of multiple perfect polarization vortices with selective spatial states in various...

Area of Science:

• Optics and Photonics
• Holography
• Vortex Beam Generation

Background:

• Perfect polarization vortices (PPVs) are crucial for advanced optical applications.
• Controlling the spatial polarization distribution of PPVs across multiple diffraction orders remains a challenge.

Purpose of the Study:

• To demonstrate a new method for generating multiple PPVs with tailored spatial polarization.
• To achieve selective polarization control in various diffraction orders simultaneously.

Main Methods:

• Design of a hologram featuring an anisotropic polarization diffraction grating.
• Implementation of a two-spatial light modulator experimental setup.
• Encoding specially designed holograms to generate PPVs.

Main Results:

• Successful generation of multiple PPVs with diverse polarization states (e.g., radial, azimuthal).
• Simultaneous observation of PPVs in different diffraction orders.
• Demonstration of selective spatial polarization distribution control.

Conclusions:

• The proposed holographic approach effectively generates multiple PPVs with controllable polarization.
• This technique offers a versatile platform for creating complex optical fields.
• Potential applications include laser processing and optical tweezers.