Atomic-sized plasmonic tunnel junctions are of fundamental interest, with great promise as
the smallest on-chip light sources in various optoelectronic applications. Several …

In typical metallic tunnel junctions, the tunneling events occur on a femtosecond timescale.
An estimation of this time requires current measurements at optical frequencies and remains …

Light emission from tunnel junctions are a potential photon source for nanophotonic
applications. Surprisingly, the photons emitted can have energies exceeding the energy …

Generating time-correlated photon pairs at the nanoscale is a prerequisite to creating highly
integrated optoelectronic circuits that perform quantum computing tasks based on heralded …

Nanoscale plasmonic structures have been primarily characterized through scattering
studies, but electroluminescence offers an exciting alternative from a technological …

Plasmonic modes confined to metallic nanostructures at the atomic and molecular scale
push the boundaries of light–matter interactions. Within these extreme plasmonic structures …

Understanding the origin of above-threshold photons emitted from electrically driven tunnel
junctions (⁠ ℏ ω> e V b with V b being the applied voltage bias) is of current interest in nano …

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 …

Optical spectromicroscopies, which can reach atomic resolution due to plasmonic
enhancement, are perturbed by spontaneous intensity modifications. Here, we study such …

Recent scanning tunneling microscopy (STM) experiments reported single-molecule
fluorescence induced by tunneling currents in the nanoplasmonic cavity formed by the STM …