A review of THz modulators with dynamic tunable metasurfaces

L Wang, Y Zhang, X Guo, T Chen, H Liang, X Hao… - Nanomaterials, 2019 - mdpi.com
Terahertz (THz) radiation has received much attention during the past few decades for its
potential applications in various fields, such as spectroscopy, imaging, and wireless …

[HTML][HTML] Modulators for terahertz communication: The current state of the art

ZT Ma, ZX Geng, ZY Fan, J Liu, HD Chen - Research, 2019 - spj.science.org
With the increase of communication frequency, terahertz (THz) communication technology
has been an important research field; particularly the terahertz modulator is becoming one of …

Graphene-assisted high-efficiency liquid crystal tunable terahertz metamaterial absorber

L Wang, S Ge, W Hu, M Nakajima, Y Lu - Optics Express, 2017 - opg.optica.org
In this paper, few-layer porous graphene is integrated onto the surface of a metasurface
layer to provide a uniform static electric field to efficiently control liquid crystal, thereby …

Metasurface-based optical liquid crystal cell as an ultrathin spatial phase modulator for THz applications

O Buchnev, N Podoliak, K Kaltenecker, M Walther… - ACS …, 2020 - ACS Publications
A concept of an efficient ultrathin spatial phase modulator for correcting terahertz wavefronts
in transmission with subwavelength spatial resolution is experimentally demonstrated. It …

Dynamic terahertz plasmonics enabled by phase‐change materials

YG Jeong, YM Bahk, DS Kim - Advanced Optical Materials, 2020 - Wiley Online Library
Phase‐change phenomena have been an attractive research theme for decades due to the
dynamic transition of material properties providing extraordinary capabilities for versatile …

Triple-band tunable perfect terahertz metamaterial absorber with liquid crystal

R Wang, L Li, J Liu, F Yan, F Tian, H Tian, J Zhang… - Optics …, 2017 - opg.optica.org
We report a compact triple-band tunable perfect terahertz metamaterial absorber (TMA) at
the subwavelength scale of thickness, which is composed of a planar metallic disk resonator …

All-integrated terahertz modulators

R Degl'Innocenti, SJ Kindness, HE Beere… - Nanophotonics, 2018 - degruyter.com
Abstract Terahertz (0.1–10 THz corresponding to vacuum wavelengths between 30 μm and
3 mm) research has experienced impressive progress in the last few decades. The …

Ultrafast electrical switching of nanostructured metadevice with dual-frequency liquid crystal

R Kowerdziej, J Wróbel, P Kula - Scientific Reports, 2019 - nature.com
Shortening of switching times of various soft-matter-based tunable metamaterials is one of
the key challenges to improve the functionality of modern active devices. Here we show an …

Tunable reflective liquid crystal terahertz waveplates

L Wang, S Ge, W Hu, M Nakajima, Y Lu - Optical Materials Express, 2017 - opg.optica.org
Tunable liquid crystal devices that can change terahertz wave polarization continuously
have many potential applications in terahertz optical systems. We present a reflective liquid …

A review of tunable electromagnetic metamaterials with anisotropic liquid crystals

J Xu, R Yang, Y Fan, Q Fu, F Zhang - Frontiers in Physics, 2021 - frontiersin.org
The performance of metamaterial is limited to a designed narrow band due to its resonant
nature, it is highly desirable to incorporate active inclusions in metamaterials to extend the …