Tamm-cavity terahertz detector

X Tu, Y Zhang, S Zhou, W Tang, X Yan, Y Rui… - Nature …, 2024 - nature.com
Efficiently fabricating a cavity that can achieve strong interactions between terahertz waves
and matter would allow researchers to exploit the intrinsic properties due to the long …

Tailoring electromagnetic responses in a coupled-grating system with combined modulation of near-field and far-field couplings

F Wu, C Fan, K Zhu, J Wu, X Qi, Y Sun, S Xiao, H Jiang… - Physical Review B, 2022 - APS
Herein, we establish a hybrid coupling model (HCM) containing both near-and far-field
couplings to describe the electromagnetic response of the coupled-grating system …

Symmetry breaking in photonic crystals: on-demand dispersion from flatband to Dirac cones

HS Nguyen, F Dubois, T Deschamps, S Cueff… - Physical review …, 2018 - APS
We demonstrate that symmetry breaking opens a new degree of freedom to tailor energy-
momentum dispersion in photonic crystals. Using a general theoretical framework in two …

Normal incidence filters using symmetry-protected modes in dielectric subwavelength gratings

X Cui, H Tian, Y Du, G Shi, Z Zhou - Scientific reports, 2016 - nature.com
We investigate narrowband transmission filters based on subwavelength-grating reflectors
at normal incidence. Computational results show that the filtering is realized through …

Chiral electroluminescence from thin-film perovskite metacavities

S Kim, SC An, Y Kim, YS Shin, AA Antonov, IC Seo… - Science …, 2023 - science.org
Chiral light sources realized in ultracompact device platforms are highly desirable for
various applications. Among active media used for thin-film emission devices, lead-halide …

Widely tunable 1060-nm VCSEL with high-contrast grating mirror

K Li, C Chase, P Qiao, CJ Chang-Hasnain - Optics express, 2017 - opg.optica.org
We report tunable VCSELs emitting around 1060 nm, enabled by high-contrast grating
(HCG) mirror. Single-mode continuous-wave (CW) operation up to 110° C is demonstrated …

Bound state in the continuum and polarization-insensitive electric mirror in a low-contrast metasurface

H Song, X Zhang, J Wang, Y Sun, GP Wang - Optics Express, 2024 - opg.optica.org
High-contrast refractive indices are pivotal in dielectric metasurfaces for inducing various
exotic phenomena, such as the bound state in the continuum (BIC) and electric mirror (EM) …

Fano resonances of dielectric gratings: symmetries and broadband filtering

BCP Sturmberg, KB Dossou, LC Botten… - Optics express, 2015 - opg.optica.org
The guided mode resonances (GMRs) of diffraction gratings surrounded by low index
materials can be designed to produce broadband regions of near perfect reflection and near …

Photonic crystals for controlling strong coupling in van der Waals materials

R Gogna, L Zhang, Z Wang, H Deng - Optics Express, 2019 - opg.optica.org
The design of photonic structures plays a crucial role in the engineering of light-matter
interactions. Planar microcavities have been widely used to establish strong light-matter …

Peculiarities of the Resonant Response of a Subwavelength Double Grating with Optical PT-Symmetry

IR Krylov, UV Prokhorova, VA Stolyarov, EA Efremova… - Photonics, 2023 - mdpi.com
In this paper, we study the features of the resonant response of a system consisting of two
subwavelength one-dimensional periodic structures, considering the dispersion of the …