Terahertz Radiation through a 3-D Printed Lens for Medical Imaging
Terahertz radiation exists in the EM spectrum between microwave and infrared. It has several advantages in imaging such as being faster than x-ray processes. Now, engineers at Northwestern University have created a microscope lens by 3-D printing that uses terahertz radiation to achieve extremely fine images. Quoting directly, “. . . the new lens could make terahertz imaging cheaper, with higher resolution, and more widely available than it is currently. Particularly useful for security because, unlike X-rays, terahertz scanners can detect plastic, biological materials, and chemicals to help uncover biological weapons such as anthrax, or plastic explosives such as Semtex. Terahertz radiation is also completely harmless to humans and can be used over and again without irradiation danger, unlike X-ray imaging.” MORE
Image Credit; Northwestern University and GizMag.com