Broadband angular spectrum differentiation using dielectric metasurfaces

M Deng, M Cotrufo, J Wang, J Dong, Z Ruan… - Nature …, 2024 - nature.com
Signal processing is of critical importance for various science and technology fields. Analog
optical processing can provide an effective solution to perform large-scale and real-time …

Metasurface-based optical analog computing: from fundamentals to applications

D Xu, S Wen, H Luo - Advanced Devices & Instrumentation, 2022 - spj.science.org
With unprecedented growth in data information over the past few decades, it is critically
important to seek a faster and more efficient method to simplify data processing. In recent …

Broadband and parallel multiple-order optical spatial differentiation enabled by Bessel vortex modulated metalens

P Huo, L Tan, Y **, Y Zhang, M Liu, P Lin… - Nature …, 2024 - nature.com
Optical analog image processing technology is expected to provide an effective solution for
high-throughput and real-time data processing with low power consumption. In various …

Metasurface-enhanced Newton's rings interferometer-enabled local curvature detection

Q Li, Q Yang, J Liu, S Liu, Y Shou, H Yang… - Applied Physics …, 2023 - pubs.aip.org
Curvature detection can reveal significant characteristics of target areas, playing a pivotal
role in micro–nano fabrication. The Newton's rings experiment is one of the classical …

[CITATION][C] Broadband angular spectrum analog processors based on all-dielectric metasurfaces

L Deng, Y Liu - Science China Physics, Mechanics & Astronomy, 2024 - Springer
Digital signal processors are extensively used to execute mathematical operations and
advanced computational tasks on digital data. However, they suffer from several inherent …