Controllable perfect optical vortex generated by complex amplitude encoding

Area of Science:

• Optics and Photonics
• Quantum Optics

Background:

• Perfect optical vortices (POVs) are essential for advanced optical applications.
• Controlling the structure and orbital angular momentum (OAM) distribution of POVs in focal regions remains challenging.

Purpose of the Study:

• To propose a new paradigm for generating POVs with a controlled structure and OAM distribution.
• To demonstrate the effectiveness of the proposed technique through experimental validation.

Main Methods:

• Development of a novel technique for generating POVs in a tightly focused system.
• Experimental demonstration involving the dynamic manipulation of small particles.

Main Results:

• Successful generation of POVs with precisely controlled structures and OAM distributions.
• Demonstration of superior performance in dynamic particle manipulation compared to existing methods.

Conclusions:

• The proposed technique offers a new paradigm for generating and controlling POVs.
• This advancement could pave the way for novel optical manipulation strategies based on OAM.