Electrical engineers have determined the theoretical fundamental limit for how much electromagnetic energy a transparent material with a given thickness can absorb. The finding will help engineers ...

Visible light forms part of the electromagnetic spectrum. So do emissions from TV and radio transmitters, mobile phones and the energy inside microwave ovens. As the name implies, they have electric ...

Electrical engineers have created the world's first structured metamaterial made without metal that can absorb electromagnetic energy. The advance has direct applications in imaging, sensing and ...

Electromagnetic spectrum operations (EMSO) have rocketed to prominence across the U.S. military, complete with their own doctrine, billets and centers of excellence. Yet decades before EMSO was ...

Electromagnetic waves are packets of energy travelling all around us. Some of these waves have lots of energy, and some have less. We call the lowest energy electromagnetic waves radio waves. There’s ...

The Defense Information Systems Agency announced the release of the initial features for Electromagnetic Battle Management – Joint, or EMBM-J, Dec. 6, which improves the U.S. military’s situational ...