High-resolution light field prints by nanoscale 3D printing

John You En Chan, Qifeng Ruan (), Menghua Jiang, Hongtao Wang, Hao Wang, Wang Zhang, Cheng-Wei Qiu and Joel K. W. Yang ()
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John You En Chan: Singapore University of Technology and Design
Qifeng Ruan: Singapore University of Technology and Design
Menghua Jiang: National University of Singapore
Hongtao Wang: Singapore University of Technology and Design
Hao Wang: Singapore University of Technology and Design
Wang Zhang: Singapore University of Technology and Design
Cheng-Wei Qiu: National University of Singapore
Joel K. W. Yang: Singapore University of Technology and Design

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: Abstract A light field print (LFP) displays three-dimensional (3D) information to the naked-eye observer under ambient white light illumination. Changing perspectives of a 3D image are seen by the observer from varying angles. However, LFPs appear pixelated due to limited resolution and misalignment between their lenses and colour pixels. A promising solution to create high-resolution LFPs is through the use of advanced nanofabrication techniques. Here, we use two-photon polymerization lithography as a one-step nanoscale 3D printer to directly fabricate LFPs out of transparent resin. This approach produces simultaneously high spatial resolution (29–45 µm) and high angular resolution (~1.6°) images with smooth motion parallax across 15 × 15 views. Notably, the smallest colour pixel consists of only a single nanopillar (~300 nm diameter). Our LFP signifies a step towards hyper-realistic 3D images that can be applied in print media and security tags for high-value goods.

Date: 2021
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DOI: 10.1038/s41467-021-23964-6

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