‘Surprising’ hidden activity of semiconductor material spotted by researchers

New research suggests that materials commonly overlooked in computer chip design actually play an important role in information processing, a discovery which could lead to faster and more efficient electronics. Using advanced imaging techniques, an international team led by Penn State researchers found that the material that a semiconductor chip device is built on, called […]

Columbia physicists see light waves moving through a metal

When we encounter metals in our day-to-day lives, we perceive them as shiny. That’s because common metallic materials are reflective at visible light wavelengths and will bounce back any light that strikes them. While metals are well suited to conducting electricity and heat, they aren’t typically thought of as a means to conduct light. But […]

Tiny displacements, giant changes in optical properties

Researchers described a new pathway to obtain novel optical and electronic properties from structural disorder in a recently published study. They found that tiny displacements of just a few picometers – that’s 100,000 times smaller than the thickness of a sheet of paper – in the atomic structure of a crystal could have minimal impacts […]