Plasmonics, particularly the one based on plasmon resonances in optical antennas for the
excitation of localized and enhanced light fields, have enabled numerous nanophotonics …

Plasmonic nanofocusing (PLNF) is an effective way to squeeze light energy into a region
below the diffraction limit and realize highly localized intensity by plasmonic structure, which …

High-brightness light sources with nanoscale volume are required in nonlinear physics
studies or various nanoscale engineering areas. Although several plasmonic devices, such …

In this review, we show that by designing the metallic nanostructures, the surface plasmon
(SP) focusing has been achieved, with the focusing spot at a subwavelength scale. The …

Focusing light to subwavelength dimensions has been a long-standing desire in optics but
has remained challenging, even with new strategies based on near-field effects, polaritons …

Metallic plasmonic probes have been successfully applied in near-field imaging,
nanolithography, and Raman enhanced spectroscopy because of their ability to squeeze …

Plasmonic nanofocusing plays important role for the efficient conversion and manipulation of
optical radiation on the nanoscale. Here, we present and demonstrate an effective structure …

Nanolight sources, which are based on resonant excitation of plasmons near a sharp
metallic nanostructure, have attracted tremendous interest in the vast research fields of …

Channel plasmon polaritons (CPPs) propagating along the bottom of V-grooves cut into a
metal were recently shown to exhibit strong confinement combined with low propagation …

Gap surface plasmon (GSP) modes, the localized electromagnetic modes existing between
two metal structures separated by a nano-gap, are able to support subwavelength …