Plasmonic ommatidia for lensless compound-eye vision
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Published version
Date
2020
DOI
Authors
Kogos, Leonard C.
Li, Yunzhe
Liu, Jianing
Li, Yuyu
Tian, Lei
Paiella, Roberto
Version
Published version
OA Version
Citation
Leonard C Kogos, Yunzhe Li, Jianing Liu, Yuyu Li, Lei Tian, Roberto Paiella. 2020. "Plasmonic ommatidia for lensless compound-eye vision." Nature Communications, Volume 11, pp. 1 - 9.
Abstract
The vision system of arthropods such as insects and crustaceans is based on the compound-eye
architecture, consisting of a dense array of individual imaging elements (ommatidia)
pointing along different directions. This arrangement is particularly attractive for imaging
applications requiring extreme size miniaturization, wide-angle fields of view, and high sensitivity
to motion. However, the implementation of cameras directly mimicking the eyes of
common arthropods is complicated by their curved geometry. Here, we describe a lensless
planar architecture, where each pixel of a standard image-sensor array is coated with an
ensemble of metallic plasmonic nanostructures that only transmits light incident along a
small geometrically-tunable distribution of angles. A set of near-infrared devices providing
directional photodetection peaked at different angles is designed, fabricated, and tested.
Computational imaging techniques are then employed to demonstrate the ability of these
devices to reconstruct high-quality images of relatively complex objects.
Description
License
Copyright 2020 The Author(s). Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.