High-efficiency and flexible generation of vector vortex optical fields by a reflective phase-only spatial light...

Area of Science:

• Optics and Photonics
• Materials Science

Background:

• Generating vector optical fields requires both high efficiency and flexibility, which are often conflicting properties.
• Existing methods for creating vector vortex optical fields (VVOFs) may lack either efficiency or adaptability for diverse applications.

Purpose of the Study:

• To present and experimentally demonstrate a novel method for the direct, flexible, and efficient generation of VVOFs.
• To overcome the incompatibility between high efficiency and flexibility in optical field generation.

Main Methods:

• Utilized a reflective phase-only liquid crystal spatial light modulator (LC-SLM) leveraging the optical birefringence of liquid crystal molecules.
• Employed a simple setup involving a half-wave plate, the LC-SLM, and a quarter-wave plate for VVOF generation.

Main Results:

• Achieved a high generation efficiency of 44.0% for VVOFs.
• Demonstrated a simple experimental setup with good flexibility and high efficiency.
• The achieved efficiency significantly surpasses the 1.1% efficiency of common path interferometric approaches.

Conclusions:

• The presented method offers a promising solution for efficiently and flexibly generating VVOFs.
• The simplicity and high efficiency make this approach suitable for applications requiring higher optical power.
• This technique addresses the limitations of current methods by achieving both high efficiency and flexibility.