A new type of metasurface has been developed that can enable the transmission of multiple channels of terahertz (THz) radiation in a single device. This breakthrough could have major implications for a range of applications, from wireless communications to medical imaging. The metasurface, developed by researchers at the University of Arizona, is a thin, two-dimensional array of nanostructures that controls the reflection and refraction of THz radiation. By manipulating the nanostructures, the researchers were able to create multiple channels, each carrying a different frequency of THz radiation. This could enable more efficient and accurate THz communications and imaging. The researchers believe this technology could lead to a new era of THz applications, such as wireless communication devices and medical imaging technologies.

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source: Phys.org