Optical illusion: New coating looks cool, even when it's not

Members of Mikhail Kats’ UW-Madison research team who contributed to this work include postdoctoral scholar Yuzhe Xiao, and graduate students Alireza Shahsafi, Zhaoning (April) Yu, Jad Salman, Chenghao Wan and Ray Wambold. Renee Meiller

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.