March 1, 2023 Researchers create metasurface that enables multichannel terahertz transmission type='text/javascript'> googletag. display('div-gpt-ad-1449240174198-2'); }); > wireless networks, which will likely be based on high frequency waves such as those in the terahertz region. noise ratio in their testing systems so that they can observe even smaller physical phenomena produced with metasurfaces