Recent advances in the development of materials for terahertz metamaterial sensing

S Shen, X Liu, Y Shen, J Qu… - Advanced Optical …, 2022 - Wiley Online Library
Terahertz metamaterial sensing (TMS) is a new interdisciplinary technology. A TMS system
employs terahertz waves as the pum** source, these then interact with the sample and …

A review of terahertz metamaterial sensors and their applications

W Wang, K Sun, Y Xue, J Lin, J Fang, S Shi… - Optics …, 2024 - Elsevier
Terahertz (THz) waves possess unique characteristics such as high transmission, strong
absorption, and low photon energy. THz metamaterial sensors, as label-free and rapid …

Sensing and nondestructive testing applications of terahertz spectroscopy and imaging systems: State-of-the-art and state-of-the-practice

W Nsengiyumva, S Zhong, L Zheng… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Terahertz (THz) technology has firmly established itself as an effective sensing and
nondestructive testing (NDT) technique for the detection of substances and physicochemical …

Highly sensitive label-free biosensor: graphene/CaF2 multilayer for gas, cancer, virus, and diabetes detection with enhanced quality factor and figure of merit

B Jafari, E Gholizadeh, B Jafari, M Zhoulideh… - Scientific Reports, 2023 - nature.com
One of the primary goals for the researchers is to create a high-quality sensor with a simple
structure because of the urgent requirement to identify biomolecules at low concentrations to …

Bipolar charge trap** for absorption enhancement in a graphene-based ultrathin dual-band terahertz biosensor

G Varshney, P Giri - Nanoscale Advances, 2021 - pubs.rsc.org
Surface plasmons generated at the graphene dielectric interface can be altered by trap**
the electric charge. A technique is implemented for trap** the bipolar electric charge on …

[HTML][HTML] Tunable optimal dual band metamaterial absorber for high sensitivity THz refractive index sensing

M Karthikeyan, P Jayabala, S Ramachandran… - Nanomaterials, 2022 - mdpi.com
We present a simple dual band absorber design and investigate it in the terahertz (THz)
region. The proposed absorber works in dual operating bands at 5.1 THz and 11.7 THz. By …

High-sensitivity biosensor for identification of protein based on terahertz Fano resonance metasurfaces

R Cheng, L Xu, X Yu, L Zou, Y Shen, X Deng - Optics Communications, 2020 - Elsevier
Terahertz metasurface biosensors have gained significant attention in biological field due to
its label-free, real-time and in-situ detection properties. In this paper, a planar array of Fano …

Highly sensitive terahertz sensor based on graphene metamaterial absorber

S Ma, P Zhang, X Mi, H Zhao - Optics Communications, 2023 - Elsevier
In this paper, we theoretically propose a highly sensitive terahertz sensor based on a
graphene metamaterial absorber in the THz region. The numerical analysis of the proposed …

Altering the multimodal resonance in ultrathin silicon ring for tunable THz biosensing

MS Khan, G Varshney, P Giri - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
A technique is implemented for altering the multimodal resonance generated in an ultrathin
silicon ring resonator-based terahertz (THz) absorber. The absorber provides the dual-band …

Ultrasensitive THz refractive index sensor based on a controllable perfect MTM absorber

M Nejat, N Nozhat - IEEE sensors journal, 2019 - ieeexplore.ieee.org
In this paper, a perfect metamaterial (MTM) absorber with simple design has been proposed
and investigated in terahertz (THz) region. The suggested absorber has the controllability of …