Also called a "frequency band." See frequency bands, spectrum, satellite frequency bands and optical bands. (2) A group of frequencies that occur naturally such as the audio spectrum. See audio.

A modulator developed by researchers from ETH Zurich has broken the terahertz mark. The ultrafast component efficiently ...

Researchers have developed a next-generation plasmonic modulator that enables optical data transmission at record-breaking ...

The adjustment of fill factor and the radius of SiC sphere are the factors of generating NRI material at optical frequency range. The advantage of this structure is that this nanoscale metamaterial is ...