Using Plasmonics to Shape Light Beams
نویسندگان
چکیده
Plasmonic structures shape semiconductor laser beams. Left: A plasmonic collima-tor spreads out radiation from the sub-wavelength aperture into surface waves that are diffracted by the metallic grating to produce a low divergence beam. Right: A resonant optical antenna concentrates most of the laser light into a tens-of-nanometers size spot defined by the gap.
منابع مشابه
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