Terahertz Terahertz

Terahertz - Definition and Overview

A terahertz is 1012 hertz or a thousand gigahertz, a measure of frequency. At one terahertz, each cycle is one picosecond, and the wavelength in free space is roughly 300μm.

Radio waves sent at terahertz frequencies usually travel in line of sight. These waves, known as terahertz radiation, are in a waveband that is the overlap of what is normally regarded as microwave radiation and far-infrared light. The Earth's atmosphere is a strong absorber of terahertz radiation, so the range of terahertz radiation is quite short. However, recent technologies using terahertz radiation have been developed, which are intended for applications such as medical imaging and surveillance.

Terahertz Time Domain Spectroscopy (THz-TDS) is used for material characterization.

See also


gigahertz << terahertz << petahertz

Example Usage of Terahertz

nanopatents: University of Oregon Metamaterial Photonic Funnels Form Functional Nanoscale Waveguides for Terahertz Sources http://tinyurl.com/ylz6o7f
geekazine: Day in Tech History (#DITH) Nov 26 – #Intel Terahertz http://bit.ly/8jEcWL (#geekazine) - Happy Thanksgiving all
fs_thueringen: Die Terahertz-Kamera - ein innovatives Projekt aus dem Land der Ideen: http://tinyurl.com/yed9lld
Copyright 2009 WordIQ.com - Privacy Policy  :: Terms of Use  :: Contact Us  :: About Us
This article is licensed under the GNU Free Documentation License. It uses material from the this Wikipedia article.