Researchers at the University of Michigan have found a way to accurately detect electromagnetic waves in the terahertz range by first converting them into sound. The advance opens up new applications ranging from tighter airport security to safer medical imaging.
Fundamental to the Internet of Things
is the idea that objects must be uniquely identifiable. RFID chips are perfect for assigning objects a digital fingerprint, at least so far as traditional manufacturing goes. But with the rise of 3D printing, incorporating an RFID chip into your object means interrupting the printing process. Now, scientists have come up with a way to 3D print a unique tag, called an InfraStruct, inside the object as it's being printed, and it's made possible by the slowly emerging field of terahertz imaging
Terahertz technology (or T-Ray, for short), sounds like something out of a science fiction movie. It utilizes high-frequency terahertz waves – which are located between microwaves and far-infrared radiation on the electromagnetic spectrum – to see through solid matter without the harmful ionizing radiation of X-rays. Although T-Ray devices
to become compact and affordable, that could soon change thanks to new silicon microchips developed at the California Institute of Technology.
Those of us who envy Superman for his X-ray vision may soon get that ability - on our cell phones. Researchers at the University of Texas at Dallas have reported a new approach to harnessing the potential of the terahertz band
in portable devices.
We recently looked at one of the potential contenders
in the US$10 million Qualcomm Tricorder X PRIZE, which as the name suggests, was inspired by the medical tricorder of Star Trek
fame. Now scientists have developed a new way of creating Terahertz (THz) or T-rays, which they say could help make handheld devices with tricorder-like capabilities a reality.
Scientist Chunlei Guo discovered a way to change the surface of a variety of metals so they absorbed virtually all light by using intense laser light in late 2006. He followed up his “black metal” discovery in 2008 by discovering how to use the same basic process to alter surface properties to turn metals a variety of colors. Now Guo and his University of Rochester colleagues have discovered that the altered black metals can detect electromagnetic radiation with frequencies in the terahertz range, also known as T-rays, which have potential in medical and scientific scanning applications, as well as security scanners.