Scientists have crafted a tiny flexible electrical device capable of generating terahertz waves that can penetrate walls and microscopic cells, potentially paving the way for new imaging techniques – and fast switching in chips. Terahertz radiation lies in the electromagnetic spectrum where microwaves and infrared meet. These so-called T-waves, ranging from 0.3 to 3THz according Read more about cheap High-frequency, high-power and nanoscale semiconductors that can see through walls[…]