Year: 2025
Type: article
Abstract: Metasurface‐based nano‐printing has enabled ultrahigh‐resolution grayscale or color image displays. However, the maximum number of independent nano‐printing images achieved with one single‐layer metasurface remains limited. This work substantially pushes the multiplexing capacity of nano‐printing by mapping images observed at distinct viewing angles to different regions in Fourier space, while simultaneously controlling the complex electric field across multiple polarization channels. The proposed Polarization‐Encoded Lenticular Nano‐Printing (POLLEN) approach, aided by a modified evolutionary algorithm, enables the display of multiple images based on the viewing angles, similar to traditional lenticular printing but without requiring a lenticular layer. In addition, it expands the display functionality to encompass multiple polarization states. Empowered by the ability to control the complex amplitude of three polarization channels, generation of 13 distinct gray‐scale Chinese ink wash painting images, 49 binary patterns, and three sets of 3D nano‐printing images totaling 25 unique visuals was numerically and experimentally demonstrated. These results present the highest number of recorded images with ultrahigh resolution to date, opening new opportunities in modern optical applications, including but not limited to optical encryption, optical data storage, lightweight displays, augmented reality, and virtual reality.
Source: Advanced Functional Materials
Institutions: Northeastern University, National University of Singapore
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
Awards: CDS&E: Elucidating and Controlling the Spectral, Spatial and Temporal Responses of Plasmonic Nanostructures based on a Data-Driven Approach, Monotone Correlation and Positive Dependence, G5145407817, G6724960469, Collaborative Research: DMREF: Accelerating the Design and Development of Engineered Photonic Materials based on a Data-Driven Deep Learning Approach, Non-Hermitian and Topological Plasmonic Devices for Light Manipulation at the Nanoscale, G7831880655
OpenAlex ID: W4415649892