Initial structure design of diffractive optical system based on particle swarm optimization algorithm

Area of Science:

• Optics and Photonics
• Computational Design
• Optical Engineering

Background:

• Diffractive optical systems offer unique light manipulation capabilities.
• Initial structural design is crucial for performance but can be complex.
• Optimization algorithms can accelerate the design process.

Purpose of the Study:

• To present a novel design method for diffractive optical systems using particle swarm optimization (PSO).
• To establish an objective function based on the diffuse spot radius for optimization.
• To demonstrate the method's applicability to hybrid optical system designs.

Main Methods:

• Utilized particle swarm optimization (PSO) for diffractive optical system design.
• Defined the objective function using the radius of the diffuse spot across varying apertures and wavelengths.
• Employed iterative calculations to determine optimal initial structural parameters.

Main Results:

• Successfully designed refractive-diffractive and reflective-diffractive hybrid optical systems.
• Simulations confirmed the efficiency of the PSO-based design method.
• Experimental validation supported the method's feasibility for initial structural design.

Conclusions:

• The PSO-based method provides an efficient approach for the initial structural design of diffractive optical systems.
• The method is versatile, applicable to both refractive-diffractive and reflective-diffractive hybrid systems.
• This technique shows significant potential for advancing diffractive optical system development.