Light waves trapped on a metal’s surface, ie surface plasmons, travel farther than expected, up to 250 microns from the source. While this distance is just 1-100th of an inch, it is far enough to possibly be useful in ultra-fast electronic circuits. Scientists captured the surface plasmons’ travel on video. Future computer circuits could use this phenomenon as interconnects.
Specially designed, extremely small metal structures can trap light. Once trapped, the light becomes a confined wave known as a surface plasmon. The plasmons can propagate almost as fast as light through the air.
Researchers at Pacific Northwest National Laboratory experimentally showcased the unique ability to study a surface plasmon...
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