Stapelbroek, Maryn G. College of Optical Sciences, The University of Arizona, Tucson, Arizona.
Dereniak, Eustace L. College of Optical Sciences, The University of Arizona, Tucson, Arizona.
- Atmospheric transmission
- Imaging approaches
- Sources of terahertz radiation
- Links to Primary Literature
- Additional Readings
The terahertz (THz) region of the electromagnetic spectrum, broadly defined, comprises the range of frequencies from 100 GHz (1011 Hz) to 10 THz (1013 Hz), corresponding to free-space wavelengths from 3 mm to 30 micrometers. This radiation, sometimes called “T-rays,” bridges the frequency gap between microwaves and long-wavelength infrared waves, and historically was of interest primarily to astronomers probing the cosmic microwave background, and fusion physicists diagnosing plasmas. This difficult transition region between radio frequencies and optics has become much more accessible in recent years with the development of new sources and detectors, spawning tantalizing potential applications for terahertz imaging in areas as diverse as hazardous-materials detection and security, nondestructive testing, medical imaging, and astronomy. As is the case in other wavelength regions, imaging is the natural way to retrieve spatial information contained in a terahertz scene.
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Its dedicated editorial team is led by Sagan Award winner John Rennie. Contributors include more than 9000 highly qualified scientists and 42 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 17,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information