Material developed to be invisible to certain electromagnetic signals
FEB 17, 2016
DOI: 10.1063/PT.5.029581
IEEE Spectrum : Putting a new spin on the idea of an invisibility cloak, researchers at MIT and Zhejiang University in China have created a sheet of metallic mesh that is invisible to certain wavelengths of light. The sheet consists of an array of copper—tiny cubes connected by thin, square-shaped rods—sandwiched between two panels of a dielectric material called polysulfone. The resulting material allows microwaves with a specific wavelength to pass through without scattering. Such an invisible mesh could lead to antenna-protecting radomes that selectively allow certain radar signals to pass through while screening out others.
© 2016. American Institute of Physics