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Design Methodology of a VIS Hybrid Refractive–Metalens System with a Wide FOV
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Design Methodology of a VIS Hybrid Refractive–Metalens System with a Wide FOV
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Design Methodology of a VIS Hybrid Refractive–Metalens System with a Wide FOV
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Journal Article
Design Methodology of a VIS Hybrid Refractive–Metalens System with a Wide FOV
2025
Overview
The emergence of metalenses has opened new possibilities for miniaturizing optical systems. However, the limited group delay provided by meta-atoms restricts their aperture size under broadband operation. This challenge has stimulated the development of hybrid refractive–metalens systems, which overcome the performance limitations of individual metalenses while achieving a more compact form factor than conventional refractive lens assemblies. Here, we propose a design methodology for hybrid lenses that combines ray tracing with full-wave simulation. We analyze key aspects of the metalens within the hybrid system for a wide wavelength band—specifically, dispersion and transmission efficiency. Based on this approach, we designed a high-resolution hybrid lens operating in the 435–656 nm visible band with a 35° field of view. The results demonstrate that the proposed lens achieves imaging performance equivalent to that of conventional refractive systems while reducing the total track length by 29%. This validates the effectiveness of our design method, indicating its strong potential for application in compact and lightweight optical systems.
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