The optical response of plasmonic nanogaps is challenging to address when the separation
between the two nanoparticles forming the gap is reduced to a few nanometers or even …

We investigate the influence of quantum tunneling on the plasmon-enhanced electric field
and photoluminescence spectroscopy in the subnanometer nanogap between two adjacent …

Tip-enhanced photoluminescence techniques, characterized by ultra-high detection
sensitivity and spatial resolution, have exhibited unprecedented capabilities in exploring …

Enhancing local field intensity through light field compression is one of the core issues in
surface plasmon-enhanced spectroscopy. The theoretical framework for the nanostructure …

Quantum-confined electronic states such as quantum-well states (QWS) inside thin Pb (111)
films and modified image-potential states (IPS) above the Pb (111) films grown on Si (111) …

In this paper, we theoretically study the effect of quantum tunneling on the surface enhanced
Raman scattering (SERS) of a generic molecule confined in sub-nanometer nanocavities …

We use scanning tunneling microscopy and spectroscopy to measure the energy shift of
empty quantum-well (QW) states in Pb islands on the Cu (111) surface. It is found that, with …

We study theoretically the quantum well states (QWSs) localized in Pb overlayers on Cu
(111) surface. Particular emphasis is given to the states with energies close to the vacuum …

The understanding and control of quantum size effects (QSEs), ie, variations of the
properties of a physical system as a function of its size, due to the discretization of the …

Field emission resonances (FERs) on Cu (100) surface are investigated by means of
tunneling regime simulations performed with a plane-wave based transport calculation …