Longitudinal quantum plasmons in copper, gold, and silver
arXiv:1708.04059 · doi:10.1088/2040-8986/aa856a
Abstract
The propagation of plasmonic waves in various metallic quantum nanostructures have considered attention for their applications in technology. The quantum plasmonic properties of metallic nanostructures in the quantum size regime have been difficult to describe by an appropriate model. Here the nonlocal quantum plasmons are investigated in the most important metals of copper, gold, and silver. Dispersion properties of these metals and propagation of longitudinal quantum plasmons in the high photon energy regime are studied by a new model of nonlocal quantum dielectric permittivity. The epsilon near zero properties are investigated and the spectrum and the damping rate of the longitudinal quantum plasmons are obtained in these metals. The quantum plasmon s wave function is shown for both classical and quantum limits. It is shown that silver is the most appropriate for quantum metallic structures in the development of next generation of quantum optical and sensing technologies, due to low intrinsic loss.
References in corpus (6)
- Quantum Plasmonics
- Generalized nonlocal optical response in nanoplasmonics
- High temperature epsilon-near-zero and epsilon-near-pole metamaterial emitters for thermophotovoltaics
- Multipole plasmons and their disappearance in few-nanometer silver nanoparticles
- Quantum Statistics of Surface Plasmon Polaritons in Metallic Stripe Waveguides
- Optical metamaterials with different metals