This repository contains the open-sorce data and the Matlab code for paper "plasmonic ommatidia for lensless compound eye vision".

If you find this project useful in your research, please consider citing our paper:

[**Leonard C. Kogos, Yunzhe Li, Jianing Liu, Yuyu Li, Lei Tian, and Roberto Paiella, "Plasmonic ommatidia for lensless compound eye vision," (2020)]

The vision system of arthropods such as insects and crustaceans (some of the smallest animals in nature) is based on the compound-eye architecture, which consists of a dense array of imaging elements (ommatidia) pointing along different directions. This arrangement is particularly attractive for imaging applications requiring extreme size miniaturization and wide-angle fields of view. However, the implementation of cameras directly mimicking the eyes of common arthropods is complicated by fabrication challenges related to 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.

This project is licensed under the terms of the BSD-3-Clause license. see the LICENSE file for details