Surface plasmons
Surface plasmons
Surface plasmons
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Asymmetric mode : field enhancement at a metallic tip<br />
Er Er Ez M. I. Stockman, “Nanofocusing of Optical Energy in Tapered Plasmonic Waveguides,” Phys. Rev. Lett. 93, 137404 (2004)]<br />
50nm<br />
E z<br />
* See MOVIES : SPP propagation through a metallic tip