Tuesday, December 3, 2024

TSCM Tech - Coating Hides Temp Changes from IR Cameras

An ultrathin coating developed by University of Wisconsin–Madison engineers upends a ubiquitous physics phenomenon of materials related to thermal radiation: The hotter an object gets, the brighter it glows.

The new coating — engineered from samarium nickel oxide, a unique tunable material — employs a bit of temperature trickery.

“This is the first time temperature and thermal light emission have been decoupled in a solid object. We built a coating that ‘breaks’ the relationship between temperature and thermal radiation in a very particular way,” says Mikhail Kats, a UW–Madison professor of electrical and computer engineering. more