Customised thermal radiation

Thermal radiation: Usually it depens only on the temperature (coal on the left), But with topological tricks, it is possible to make a surface emit thermal radiation only at certain points, so that a picture can be created, for example a map of the British isles. CREDIT TU Wien. Article: Customised thermal radiation.

Researchers at Vienna University of Technology in Austria and the University of Manchester in the UK have developed methods to precisely tailor thermal radiation using topological techniques.

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