Summary: A team of researchers, led by Northwestern University’s Cheng Sun, have used 3D printing technology to produce a terahertz lens. Using projection micro-stereolithography, the 3D printed terahertz lens can potentially improve securtity and biomedical research, and is a relatively unexplored frequency on the electromagnetic spectrum. Read more at 3DPrint.com: https://3dprint.com/132220/northwestern-terahertz-lens