Web15 Aug 2024 · We present two types of refractive index sensors by using tunable terahertz (THz) metamaterial (TTM) based on two concentric split-ring resonators (SRRs) with different splits. By modifying the distance between SRRs and substrate, TTM shows tunable single- and dual-resonance characteristic. WebBased on the physical properties of terahertz, combining metamaterials and microfluidic chips, this paper conducts a series of experiments. In terms of experiments, there are solution samples, dry probiotic samples, and biological antigen binding experiments; in terms of simulation, by adjusting the metamaterial pattern design, the chip's sensing …
Design of Periodic Metamaterial Absorber for Terahertz …
Web26 Jun 2024 · Terahertz sensing of highly absorptive aqueous solutions remains challenging due to strong absorption of water in the terahertz regime. Here, we experimentally demonstrate a cost-effective metamaterial-based sensor integrated with terahertz time-domain spectroscopy for highly absorptive water-methanol mixture sensing. WebCombined with experimental and simulated results, the resonances and metamaterial-induced transparency have been theoretically investigated using the Lorentz oscillator model for terahertz metamaterials with unequal-length bar structures. The bar spacing has an impact on the spectral evolution, implying that the coupling between metal bars varies … holistic assistance response team
A graphene-based THz metasurface sensor with air-spaced …
Web4.1 Simulation study of metamaterial absorber sensing applications. The properties of all-silicon THz metamaterial absorber make it able to absorb electromagnetic waves well, and it has a wide range of applications as an absorber. For example, they can be used as an absorber unit for biological Terahertz sensor. Web1 Nov 2024 · A polarization-insensitive terahertz metamaterial absorber has been introduced to trace the residue of pesticide/herbicides on food product. Our engineered platform is tunable and capable of sensing any trace of molecular concentration on chip surface as small as 5 ppm. Web17 Oct 2024 · With the rapid development of terahertz technology, tunable high-efficiency broadband functional devices have become a research trend. In this research, a dynamically tunable dual broadband terahertz absorber based on the metamaterial structure of vanadium dioxide (VO2) is proposed and analyzed. The metamaterial is composed of … humana therapist list