A Revolutionary Imaging Technique Uses a Single Pixel to Fill Our Terahertz Blind Spot
MIT Technology Review
At almost every wavelength, engineers have electromagnetic antennae that can detect and record the waves and create exotic images of the world at radio, microwave, infrared, visible, and x-ray frequencies.
But there is a blind spot in this spectrum. The technology is still in its infancy to detect radiation with a wavelength of between 1 and 0.3 millimeters and a frequency of about a terahertz. The equipment that can detect such radiation is bulky and expensive and the resulting images poor. Hence the “blind spot,” which engineers have called the terahertz gap.
