Thermal emission interface film (IMAGE)
Caption
Researchers can alter the thickness of the platinum layer, shown here as a silver circle, with one side thicker than the other. By altering the thickness, the two sides are brought to a "critical coupling" point, where light absorbed by either side can be emitted together at the meeting point. That meeting point releases the thermal radiation in whatever shape the researchers determine. Here, it is shown as a thin red line.
Credit
Provided by Coskun Kocabas/The University of Manchester and Sahin Ozdemir/Penn State
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