Volumetric imaging efficiency of multi-metasurface lenses

C. Kyle Renshaw; Zhao Ma

doi:10.1117/12.2594631

3 August 2021 Volumetric imaging efficiency of multi-metasurface lenses

C. Kyle Renshaw, Zhao Ma

Proceedings Volume 11795, Metamaterials, Metadevices, and Metasystems 2021; 117951P (2021) https://doi.org/10.1117/12.2594631
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Flat lenses based on metasurfaces promise to shrink imaging systems. While volume of a flat lens is negligible, the light field must propagate through a sizeable volume of image space behind the lens to finally form an image. This constrains the opportunity to shrink imaging systems. We introduce a general metric the Volumetric Imaging Efficiency (VIE) and show it’s an effective tool to compare disparate lenses and technologies. We use the VIE to illustrate the trade space where flat lenses excel – short focal length, wide angle lenses. We quantify their performance against conventional bulk lenses and discuss challenges for scaling to longer focal lengths.

Conference Presentation

Citation Download Citation

C. Kyle Renshaw and Zhao Ma "Volumetric imaging efficiency of multi-metasurface lenses", Proc. SPIE 11795, Metamaterials, Metadevices, and Metasystems 2021, 117951P (3 August 2021); https://doi.org/10.1117/12.2594631

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