Active tunable terahertz bandwidth absorber based on single layer graphene

W Li, Y Yi, H Yang, S Cheng, W Yang… - Communications in …, 2023 - iopscience.iop.org
In this paper, an active tunable terahertz bandwidth absorber based on single-layer
graphene is proposed, which consists of a graphene layer, a photo crystal plate, and a gold …

Toward real-time terahertz imaging

H Guerboukha, K Nallappan… - Advances in Optics and …, 2018 - opg.optica.org
Terahertz (THz) science and technology have greatly progressed over the past two decades
to a point where the THz region of the electromagnetic spectrum is now a mature research …

Noninvasive, near-field terahertz imaging of hidden objects using a single-pixel detector

RI Stantchev, B Sun, SM Hornett, PA Hobson… - Science …, 2016 - science.org
Terahertz (THz) imaging can see through otherwise opaque materials. However, because of
the long wavelengths of THz radiation (λ= 400 μm at 0.75 THz), far-field THz imaging …

Nonlinear plasmonic metasurfaces

E Rahimi, R Gordon - Advanced Optical Materials, 2018 - Wiley Online Library
The nonlinear optical response of materials allows optical functionality not seen in linear
devices, such as switching, wavelength conversion, and adaptive optics. Unfortunately, the …

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 …

Dual-band tunable perfect metamaterial absorber based on graphene

F Wang, S Huang, L Li, W Chen, Z Xie - Applied optics, 2018 - opg.optica.org
In this paper, a dual-band perfect metamaterial absorber based on graphene is proposed in
the terahertz region. The metamaterial absorber consists of two sizes of graphene disks and …

Gradient High‐Q Dielectric Metasurfaces for Broadband Sensing and Control of Vibrational Light‐Matter Coupling

FU Richter, I Sinev, S Zhou, A Leitis, SH Oh… - Advanced …, 2024 - Wiley Online Library
Surface‐enhanced infrared absorption spectroscopy (SEIRA) has emerged as a powerful
technique for ultrasensitive chemical‐specific analysis. SEIRA can be realized by employing …

Broadband terahertz metamaterial absorber based on tantalum nitride

G Deng, J Yang, Z Yin - Applied optics, 2017 - opg.optica.org
A broadband metamaterial absorber with a single layer of tantalum nitride (Ta_2N_3)
frequency selective surface layer, printed on a foam substrate, is presented. The proposed …

Compact and wide-band Quasi Yagi-Uda antenna based on periodic grating ground and coupling method in terahertz regime

S Poorgholam-Khanjari, FB Zarrabi, S Jarchi - Optik, 2020 - Elsevier
We are supposed to design a compact antenna and improve the bandwidth of a planar
Quasi Yagi-Uda Antenna in the Terahertz band by the periodic ground layer and parasitic …

Graphene-based tunable polarization sensitive terahertz metamaterial absorber

G Deng, P Chen, J Yang, Z Yin, L Qiu - Optics Communications, 2016 - Elsevier
A tunable metamaterial absorber composed of a metal ground plane, a SiO 2 dielectric
spacer, a graphene layer and a metal pattern layer, which is polarization sensitive is …