Article Abstracts | November 2006
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Terahertz Radiation Sources for Imaging and Sensing Applications
New techniques are being used to generate emissions at terahertz frequencies.
by Eric R. Mueller, Coherent Inc.
Electromagnetic radiation in the terahertz (10
12 Hz) frequency domain has unique properties that make it particularly attractive for applications ranging from biomedical imaging, national security and packaged goods inspection to remote sensing and spectroscopy. Unfortunately, however, generating terahertz radiation at any meaningful power level presents many practical hurdles.
But in recent years, a number of methods for generating both continuous-wave and pulsed terahertz radiation have been successfully developed. In turn, these are spawning the early development of terahertz applications, particularly in nondestructive imaging and atmospheric sensing...
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