Biosensors based on terahertz (THz) metasurfaces have recently attracted widespread attention. However, few have been reported so far because it is a challenge to achieve ultrasensitive multidimensional detection in the THz spectrum. Here, we propose a novel THz biosensor that consists of a metasurfac...
Broadband metamaterials and metasurfaces: A review from the perspectives of materials and devices discussed in the materials part, and broadband absorbers, lens, and hologram devices based on metamaterials and metasurfaces are discussed in the devices ... J Jung,H Park,J Park,... - 《...
THz metasurfaces can also detect and sense different biomolecules like hemoglobin, urea, etc [12]. The sensing of these molecules with THz metasurfaces helps in detecting mycobacterium tuberculosis bacteria which helps in detecting tuberculosis at an early stage [13], [14]. Moreover, reconfigur...
In Section “Impedance matched feedline of the SIW-MTS inspired AOC”, the feedline is transformed to a metasurface to enhance the performance of the AoC. In Section “State-or-the-art comparison”, the salient features of the antenna are compared to state-of-the-art THz antennas. The ...
Instead of locally controlling the individual meta-atoms in a THz metasurface (e.g., via PIN diode, varactor, etc.), they vary the polarization of a light beam with rotating multilayer cascaded metasurfaces. They demonstrate that rotating different layers (each exhibiting a particular phase ...
Metasurface-in-the-middle attack: From theory to experiment, in Proceedings of the 15th ACM Conference on Security and Privacy in Wireless and Mobile Networks, WiSec ’22, 257–267, https://doi.org/10.1145/3507657.3528549 (Association for Computing Machinery, 2022). Nagatsuma, T., Ducournau, ...
[25] ZHANG C,ZHOU G,WU J,et al.Active control of terahertz waves using vanadium-dioxide-embedded metama terials[J].Physical Review Applied,2019,11(5):054016. [26] NOUMAN M T,HWANG J H,FAIYAZ M,et al.Vanadium dioxide based frequency tunable metasurface filters for realizing reconfigurable...
A specially designed fractal metasurface-based structure was investigated as a dual-polarization converter operating in the terahertz (THz) band. The proposed converter has the ability to perform both the linear-to-cross (LX) and linear-to-circular (LC) polarization conversions. In the former kind...
c Near-field propagation (squared electric field, 200 GHz) of an Airy beam generated with a metasurface (see Methods). From the equation defining the free space propagation of Airy beams (see Supplementary Note 5), one can extract the trajectory, a parabola expressed as \(g\left(z\right...
Here, we introduce broadband THz emitters based on Pancharatnam-Berry phase nonlinear metasurfaces, which exhibit unique optical functionalities. Using these new emitters, we experimentally demonstrate tunable linear polarization of broadband single cycle THz pulses, the splitting of spin states and THz ...