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Land use is an influential factor in river sediment pollution. However, land use type alone is found to be inadequate to explain pollutant contributions to the aquatic environment since configurations within the same land use type such as land cover and development layout could also exert an important influence. Consequently, this paper discusses a research study, which consisted of an in-depth investigation...
Terahertz waves bound inside a metallic rod-array is successfully demonstrated and used to sense ultra-thin molecular layers in the presentation. From the transmitted surface waves with constructive interference, nanometer-thick films of SiO2 and ZnO are successfully identified, corresponding to λ/1923 and superior to the available THz sensors.
Subwavelength confined terahertz waves propagating along a planar waveguide is successfully demonstrated via the integration between a diffraction metal grating and a plastic ribbon. The longest propagation distance and minimum confined range are, respectively, 50mm and λ/5, improving the deliverable range of spoof-surface-plasmon-polaritons.
A plastic ribbon integrated with one-dimensional-metal grating is first demonstrated as a hybrid-plasmonic waveguide to highly confine terahertz radiation approaching to power range of λ/26 and the longest propagation distance is experimentally up to 50mm.
A continuously tunable terahertz notch filter is demonstrated by using antiresonant reflecting hollow waveguides. The maximum frequency-tuning-range approached 50% of the bandwidth, and a 20dB notch-depth with a linewidth of 6GHz was successfully achieved.
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