Researchers create hidden images with commercial inkjet printers

Researchers have developed a way to use commercial inkjet printers and readily available ink to print hidden images that are only visible when illuminated with appropriately polarized waves in the terahertz region of the ...

Quantum dots offer new platform for fingertip terahertz devices

Scientists from Russia and the U.K. have developed an antenna that can aid in reducing sources of terahertz radiation down to the size of a fingertip. The antenna is a "sandwich" of semiconductor layers combined with quantum ...

Building a bright future for lasers

Invisible to the human eye, terahertz electromagnetic waves can "see through" everything from fog and clouds to wood and masonry—an attribute that holds great promise for astrophysics research, detecting concealed explosives ...

Terahertz radiation: A useful source for food safety

An effective and less expensive tool for the inspection of food and drugs could soon be a reality. Scientists from the Fritz Haber Institute of the Max Planck Society in Berlin have been working with national and international ...

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