Using advanced fabrication techniques, engineers have built a nanosized device out of silver crystals that can generate light by efficiently ‘tunneling’ electrons through a tiny barrier. The work brings plasmonics research a step closer to realizing ultra-compact light sources for high-speed, optical data processing and other on-chip applications.
from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2018/07/180723142840.htm
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