Analogue computing with metamaterials

F Zangeneh-Nejad, DL Sounas, A Alù… - Nature Reviews …, 2021 - nature.com
Despite their widespread use for performing advanced computational tasks, digital signal
processors suffer from several restrictions, including low speed, high power consumption …

Engineering photonic angular momentum with structured light: a review

J Chen, C Wan, Q Zhan - Advanced Photonics, 2021 - spiedigitallibrary.org
Structured light with inhomogeneous phase, amplitude, and polarization spatial distributions
that represent an infinite-dimensional space of eigenstates for light as the ideal carrier can …

[PDF][PDF] Photonic spin Hall effect: fundamentals and emergent applications

S Liu, S Chen, S Wen, H Luo - Opto-Electronic Science, 2022 - researching.cn
The photonic spin Hall effect (SHE) refers to the transverse spin separation of photons with
opposite spin angular momentum, after the beam passes through an optical interface or …

Giant photonic spin Hall effect empowered by polarization-dependent quasibound states in the continuum in compound grating waveguide structures

F Wu, T Liu, Y Long, S Xiao, G Chen - Physical Review B, 2023 - APS
The photonic spin Hall effect (PSHE) plays an important role in both fundamental science
and precision metrology. In this paper, we theoretically propose a polarization-dependent …

[HTML][HTML] Controllable oscillated spin Hall effect of Bessel beam realized by liquid crystal Pancharatnam-Berry phase elements

S Liu, S Qi, Y Li, B Wei, P Li, J Zhao - Light: Science & Applications, 2022 - nature.com
Pancharatnam–Berry (PB) phase has become an effective tool to realize the photonic spin
Hall effect (PSHE) in recent years, due to its capacity of enhancing the spin-orbit interaction …

Two-dimensional optical spatial differentiation and high-contrast imaging

J Zhou, H Qian, J Zhao, M Tang, Q Wu… - National science …, 2021 - academic.oup.com
Optical analog signal processing technology has been widely studied and applied in a
variety of science and engineering fields, with the advantages of overcoming the low-speed …

[HTML][HTML] Computing metasurfaces for all-optical image processing: a brief review

S He, R Wang, H Luo - Nanophotonics, 2022 - degruyter.com
Computing metasurfaces are two-dimensional artificial nanostructures capable of
performing mathematical operations on the input electromagnetic field, including its …

Computing metasurfaces enabled broad-band vectorial differential interference contrast microscopy

Y Wang, Q Yang, S He, R Wang, H Luo - ACS Photonics, 2022 - ACS Publications
Differential interference contrast (DIC) microscopy provides the ability to visualize
transparent phase samples such as living cells and tissues, which plays an essential role in …

Nonlinear computational edge detection metalens

J Zhou, J Zhao, Q Wu, CF Chen, M Lei… - Advanced Functional …, 2022 - Wiley Online Library
Optical image processing and computing systems provide supreme information processing
rates by utilizing parallel optical architectures. Existing optical analog processing techniques …

Goos–Hänchen effect enabled optical differential operation and image edge detection

D Xu, S He, J Zhou, S Chen, S Wen, H Luo - Applied Physics Letters, 2020 - pubs.aip.org
The Goos–Hänchen effect has found many important applications in photonics and
optoelectronics since its discovery in 1947. Here, we propose unique applications of the …