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We report on the effect of induced surface charges on the propagation of the terahertz (THz) radiation via particle plasmons. The phenomenon is attributed to a change of the surface conductivity of the metallic particles.
We fabricate a hybrid nanoswitch with polarization-dependent properties by tailoring the near-field nanoenvironment of a plasmonic nanoantenna. Positioning a phase-transforming na-noparticle at the nanoantenna's optical focus allows modulation of nanoscale light fields with specific polarizations.
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