Recent advances in tunable metasurfaces: materials, design, and applications

OAM Abdelraouf, Z Wang, H Liu, Z Dong, Q Wang… - ACS …, 2022 - ACS Publications
Metasurfaces, a two-dimensional (2D) form of metamaterials constituted by planar meta-
atoms, exhibit exotic abilities to tailor electromagnetic (EM) waves freely. Over the past …

The current state of optical sensors in medical wearables

E Vavrinsky, NE Esfahani, M Hausner, A Kuzma… - Biosensors, 2022 - mdpi.com
Optical sensors play an increasingly important role in the development of medical diagnostic
devices. They can be very widely used to measure the physiology of the human body …

Reversible tuning of Mie resonances in the visible spectrum

L Lu, Z Dong, F Tijiptoharsono, RJH Ng, H Wang… - ACS …, 2021 - ACS Publications
Dielectric optical nanoantennas are promising as fundamental building blocks in next
generation color displays, metasurface holograms, and wavefront shaping optical devices …

Schrödinger's red pixel by quasi-bound-states-in-the-continuum

Z Dong, L Jin, SD Rezaei, H Wang, Y Chen… - Science …, 2022 - science.org
While structural colors are ubiquitous in nature, saturated reds are mysteriously absent. This
long-standing problem of achieving Schrödinger's red demands sharp transitions from …

Metasurface biosensors enabling single-molecule sensing of cell-free DNA

M Iwanaga, T Hironaka, N Ikeda, T Sugasawa… - Nano Letters, 2023 - ACS Publications
In this study, we have revealed that highly fluorescence (FL)-enhancing all-dielectric
metasurface biosensors are capable of detecting single-target DNA, which is cell-free DNA …

Coherent momentum control of forbidden excitons

X Ma, K Kudtarkar, Y Chen, P Cunha, Y Ma… - Nature …, 2022 - nature.com
A double-edged sword in two-dimensional material science and technology is optically
forbidden dark exciton. On the one hand, it is fascinating for condensed matter physics …

Miniaturizing color-sensitive photodetectors via hybrid nanoantennas toward submicrometer dimensions

J Ho, Z Dong, HS Leong, J Zhang, F Tjiptoharsono… - Science …, 2022 - science.org
Digital camera sensors use color filters on photodiodes to achieve color selectivity. As the
color filters and photosensitive silicon layers are separate elements, these sensors suffer …

Reversible electrical switching of nanostructural color pixels

S Zhang, J Zhang, WP Goh, Y Liu, F Tjiptoharsono… - …, 2023 - degruyter.com
Electrical switching of nanophotonic structural color elements is a promising approach
towards addressable color switching pixels for next generation reflective displays. However …

Unidirectional Chiral Emission via Twisted Bi-layer Metasurfaces

D Gromyko, S An, S Gorelik, J Xu, LJ Lim… - Nature …, 2024 - nature.com
Controlling and channeling light emissions from unpolarized quantum dots into specific
directions with chiral polarization remains a key challenge in modern photonics. Stacked …

Lighting up Si nanoparticle arrays by exploiting the bound states in the continuum formed in a Si/Au hybrid nanostructure

L Zhou, M Panmai, S Li, Y Mao, W He, H Huang… - ACS …, 2022 - ACS Publications
Silicon (Si)-based light emitters compatible with the current fabrication technology of Si chips
are crucial for realizing all-optical computation. Here, we propose a Si/Au hybrid …