Modeling of diffractive/meta-lenses using fast physical optics (Conference Presentation)

Frank Wyrowski; Site Zhang; Liangxin Yang; Christian Hellmann

doi:10.1117/12.2529643

10 September 2019 Modeling of diffractive/meta-lenses using fast physical optics (Conference Presentation)

Frank Wyrowski, Site Zhang, Liangxin Yang, Christian Hellmann

Proceedings Volume 11103, Optical Modeling and System Alignment; 111030N (2019) https://doi.org/10.1117/12.2529643
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

Abstract

The growing importance of diffractive and meta-lenses in modern optical systems makes it vital to investigate and understand their capabilities. They play an important role in various applications like imaging systems, laser-beam shaping, bio/medical-optics, etc. We propose methods for the modeling of diffractive and meta-lenses based on the concept of the fast-physical-optics approach. A diffractive or meta-lens can be modeled as a series of structures functioning locally (e.g. local gratings) on a base interface. Each local structure introduces a certain local phase modulation, and by putting all of them together, the lens functionality can be achieved. In our approach, the rigorous Fourier modal method (FMM), also known as the rigorous coupled wave analysis (RCWA), is applied for the analysis of the local micro-/nanostructures, with all vectorial effects and possible higher-order effects taken into consideration; then the phase modulations can be collected for the lens function modeling. In this manner, a multi-scale simulation of optical systems with diffractive/meta-lenses becomes feasible and efficient in practice.

Conference Presentation

Citation Download Citation

Frank Wyrowski, Site Zhang, Liangxin Yang, and Christian Hellmann "Modeling of diffractive/meta-lenses using fast physical optics (Conference Presentation)", Proc. SPIE 11103, Optical Modeling and System Alignment, 111030N (10 September 2019); https://doi.org/10.1117/12.2529643

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