A device that essentially listens for light waves could help open up the last frontier of the electromagnetic spectrum—the terahertz range. So-called T-rays, which are light waves too long f... Read more
Thermal infrared (IR) energy is emitted from all things that have a temperature greater than absolute zero. Human eyes, primarily sensitive to shorter wavelength visible light, are unable to... Read more
‘Wi-Vi’ is based on a concept similar to radar and sonar imaging. The comic-book hero Superman uses his X-ray vision to spot bad guys lurking behind walls and other objects. Now we could all... Read more
David P. Reed, one of the original architects of the Internet says electromagnetic spectrum is not finite AT&T, Verizon, T-Mobile and Sprint say they need more radio spectrum, the govern... Read more
Eclipsing today’s devices that operate in the gigahertz frequency region Researchers at University of Pittsburgh have generated a frequency comb (a slice of spectrum) with more than 100 tera... Read more
The product can be up to 44% efficient Scientists at the University of Cambridge in the UK have found a way to improve the efficiency of photovoltaic cells by as much as 25% through h... Read more