Engineering novel optical arrays using a multi-focusing complex sinusoidal grating-based spiral zone plate

This paper showcases a novel composite diffractive element that can be finely tuned to generate a myriad of stunning beam patterns and structures. Specifically, we have redesigned the spiral zone plate by incorporating a complex sinusoidal grating into its structure, which has considerably expanded the range of effective parameters available to engineer various shapes and structures of light beams. Furthermore, this element functions as a multi-focusing component, enabling the creation of optical arrays of diverse forms, ranging from basic spots and grids to intricate and innovative beam shapes. Our research involves extensive mathematical analysis and associated simulations, as well as experimental validation of the mathematical findings.

Automated summary

This paper presents a novel composite diffractive element that can generate a wide range of beam patterns and structures by redesigning the spiral zone plate and incorporating a complex sinusoidal grating. Additionally, this element functions as a multi-focusing component, enabling the creation of diverse optical arrays. Mathematical analysis, simulations, and experimental validation were conducted to support the research findings.