Metallic structures with nanogap features have proven highly effective as building blocks for
plasmonic systems, as they can provide a wide tuning range of operating frequencies and …

Analogous to radio-and microwave antennas, optical nanoantennas are devices that receive
and emit radiation at optical frequencies. Until recently, the realization of electrically driven …

Gold Nanoparticles for Physics, Chemistry and Biology offers an overview of recent research
into gold nanoparticles, covering their discovery, usage and contemporary practical …

Yagi-Uda antennas are a key technology for efficiently transmitting information from point to
point using radio waves. Since higher frequencies allow higher bandwidths and smaller …

Directional antennas revolutionized modern day telecommunication by enabling precise
beaming of radio and microwave signals with minimal loss of energy. Similarly, directional …

The long sought-after goal of locally and spectroscopically probing the excitons of two-
dimensional (2D) semiconductors is attained using a scanning tunneling microscope (STM) …

Quantum tunneling-driven optical nanoantennas are key components for the development of
integrated plasmonic nanodevices. In this work, we use the tunneling junction between a …

Plasmonic nanoantennas have attracted much attention lately, among other reasons
because of the directionality of light emitted by fluorophores coupled to their localized …

We study the plasmon modes of gold nanorods (as short as∼ 100 nm) on a nonmetallic
conductive substrate using scanning tunneling microscope-induced light emission (STM-LE) …

The light emission from a scanning tunneling microscope operated on a Ag (111) surface at
6 K is analyzed from low conductances to values approaching the conductance quantum …