Flexible terahertz beam manipulations
WebMay 15, 2024 · In this paper, we design a terahertz vortex beam metasurface, which can generate OAM vortex beams and focused vortex beams with different topological charges. The metasurface is a three-layer structure composed of a planar notched concave array, which is separated from the grounded metal plane by a polyimide (PI) dielectric with sub … Web2.1 Spectral range. Terahertz radiation lies between the microwave and the infrared regions of the electromagnetic spectrum. ‘Terahertz' typically ranges from 0.1×1012 to 10×10 12 …
Flexible terahertz beam manipulations
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WebCoding metasurfaces have received tremendous interest due to their unprecedented control of beams through the flexible design of coding sequences. However, realizing tunable coding metasurfaces with scattering-pattern shifts in the terahertz range is still challenging. Here, we propose a VO2-integrated coding metasurface to realize a thermally controlled … WebMay 18, 2024 · Terahertz wave manipulations, especially the phase manipulations, through metasurfaces has attracted considerable interests. Here, we develop a terahertz …
WebTerahertz wave manipulations, especially the phase manipulations, through metasurfaces has attracted considerable interests. Here, we develop a terahertz beam … WebBoth simulated and measured far-field scattering patterns of the metasurface certify the anomalous beam reflection and wide-angle beam steering performances. Nevertheless, …
WebAug 15, 2024 · The solid rods connect the central waveguide and the outer subwavelength waveguides to form a stable structure. On the other hand, the solid rods can also play a role in enhancing the coupling between the central waveguide and the outer waveguides. The structure parameters of the beam splitter are set as L 1 = 1020 μ m, D 0 = 327 μ m, D 1 ... WebFree-space transmission of terahertz waves open great opportunities for wireless communication and sensing in the Beyond 5G/6G paradigm. Nevertheless, terahertz transmission suffers from severe diffraction losses due to the shorter wavelengths than the microwaves. To compensate for the diffraction losses, point-to-point transmission by …
WebJan 5, 2024 · The research group explored the LCE film as a flexible substrate to design a phase-discontinuity metasurface with aluminum C-shaped split rings as resonators, realizing active manipulation of ...
WebNov 27, 2024 · In this work, we design an ultrathin 2-bit anisotropic Huygens coding metasurface (AHCM) composed by bilayer metallic square-ring structures for flexible … hampshire and iow victim care serviceWebPreviously, flexible manipulation of chiral terahertz waves from a spintronic emitter with a nonuniform external magnetic field was demonstrated, while the reported ellipticity was low, because of the challenge to generate π / 2 phase difference by varying the nanofilm thickness. 55 In contrast, the π / 2 phase difference in our work is ... burrs lane junior high schoolWebNew method for manipulation of THz polarization (linear-circular-elliptical) during Terahertz generation process. • Electric wiggler field is first time investigated for manipulation of THZ polarization, which has potential applications such as polarization-specific terahertz (THz) detection of human colonic excisions, line-of-sight telecommunication and information … burrs laneWebMar 2, 2024 · Abstract. Coding metasurfaces have drawn great attention for its digital wave manipulation in deep subwavelength-scale in the last decade, more sophisticated and flexible coding strategies suitable for terahertz wavefront manipulations are becoming more urgently demanded. Due to its rigidity in phase gradient division, both phase … burrs in machiningWebReconfigurable intelligent surfaces (RISs) have attracted extensive attention in recent years due to their strong ability to improve and customize electromagnetic wave propagation … burrs letchworth shoesWebApr 15, 2012 · We propose a spatial modulator for terahertz waves based on light induced electron plasma in photo-active semiconductors. A two-dimensional array of computer … burrs lawWebThis proposed flexible metasurface can achieve a typical plasmon-induced transparency (PIT) effect in the reflection spectra at terahertz region by introducing a novel graphene assembly film (GAF) whose conductivity reaches 1.1 × 10 6 S·m −1 that is close to metals. In addition, the LDW processing method ablates the designed pattern on the ... burrs in hair