Technical Paper in Laser and Photonics Reviews [0]<p>[0] <a href="https://onlinelibrary.wiley.com/doi/10.1002/lpor.202400270" rel="nofollow">https://onlinelibrary.wiley.com/doi/10.1002/lpor.202400270</a>
Terahertz frequencies have an awful range, even worse than millimeter 5G.<p>It's brilliant marketing : you can advertise insane lab speeds, and sell way more antenna towers because decent coverage is harder to achieve.