Photonic metamaterial analogue of a continuous time crystal

T Liu, JY Ou, KF MacDonald, NI Zheludev - Nature Physics, 2023 - nature.com
Time crystals are an eagerly sought phase of matter with broken time-translation symmetry.
Quantum time crystals with discretely broken time-translation symmetry have been …

A corrugated gradient mechanical metamaterial: Lightweight, tunable auxeticity and enhanced specific energy absorption

H Zhang, P Chen, G Lin, W Sun - Thin-Walled Structures, 2022 - Elsevier
As an emerging field, mechanical metamaterials have brought new options for energy
absorption. Herein, the corrugated wall mechanical metamaterial with unique deformation …

Structural design and tunable mechanical properties of novel corrugated 3D lattice metamaterials by geometric tailoring

H Zhang, G Lin, W Sun - Thin-Walled Structures, 2023 - Elsevier
In this work, a novel corrugated 3D lattice metamaterial with stable mechanical response
and deformation behavior was constructed by geometric tailoring. Through quasi-static …

[HTML][HTML] Dual-modulus 3D printing technology for magnetorheological metamaterials-part I: Manufacturing and performance

C Lou, B Liu, X Cao, L Gao, S Xuan, H Deng… - Composites Part A …, 2024 - Elsevier
Magnetorheological metamaterial (MRM) with magnetic controllable stiffness based on 3D
printing technology have attracted extensive attention in recent years. In this paper, a dual …

A fourfold star petal–shaped polarization-insensitive broadband plasmonic metamaterial absorber

MS Raeen, A Nella, R Maheswar - Plasmonics, 2023 - Springer
This article proposes a fourfold star petal–shaped nanostructure, as a broadband plasmonic
metamaterial absorber applicable in the frequency band of 390 THz to 750 THz. In this …

Microwatt volatile optical bistability via nanomechanical nonlinearity

D Papas, JY Ou, E Plum, NI Zheludev - Advanced Science, 2023 - Wiley Online Library
Metastable optically controlled devices (optical flip‐flops) are needed in data storage, signal
processing, and displays. Although nonvolatile memory relying on phase transitions in …

Optical control of nanomechanical Brownian motion eigenfrequencies in metamaterials

J Li, KF MacDonald, NI Zheludev - Nano Letters, 2022 - ACS Publications
Nanomechanical photonic metamaterials provide a wealth of active switching, nonlinear,
and enhanced light-matter interaction functionalities by coupling optically and mechanically …

[HTML][HTML] Dual-modulus 3D printing technology for magnetorheological Metamaterials-Part II: Negative regulation theory and application

C Lou, B Liu, X Cao, L Gao, S Xuan, H Deng… - Composites Part A …, 2024 - Elsevier
Metamaterials are artificially structured periodic materials that have remarkable property of
wave attenuation in bandgaps. However, metamaterials with adjustable and low-frequency …

Breaking of Time Translation Symmetry and Ergodicity, and Entropy decrease in a Continuous Time Crystal Driven by Nonreciprocal Optical Forces

T Liu, V Raskatla, J Li, KF MacDonald… - arxiv preprint arxiv …, 2024 - arxiv.org
Nonreciprocal nonequilibrium process are attracting growing interest in sociology, animal
behaviour, chemistry, and nanotechnology, and may have played a role in the origin of life. It …

Ballistic dynamics of flexural thermal movements in a nanomembrane revealed with subatomic resolution

T Liu, JY Ou, N Papasimakis, KF MacDonald… - Science …, 2022 - science.org
Flexural oscillations of freestanding films, nanomembranes, and nanowires are attracting
growing attention for their importance to the fundamental physical and optical properties and …