Using the Terahertz Spectrum for Wireless Communication
holy_calamity writes "A first step to allowing wireless data transfer over a currently unused part of the electromagnetic spectrum is reported in New Scientist. Terahertz radiation exists between radio and infrared. A new filter created at the University of Utah can filter out particular frequencies, a prerequisite for using it for data. The abstract of the paper in the journal Nature is freely available."
Ummmm. In case you didn't know, people have been using light for years. Ever heard of semaphore?
I don't therefore I'm not.