Bibliographic Details
| Title: |
Limit possible electric field in plasmon nanogap resonator |
| Authors: |
Sarychev, Andrey K., Ivanov, Andrey V., Barbillon, Grégory |
| Publication Year: |
2021 |
| Collection: |
Physics (Other) |
| Subject Terms: |
Physics - Optics |
| More Details: |
We propose the theory of the plasmon excited in ultra-narrow plasmonic gap formed by a metal cylinder on a metal surface, that generates a huge resonant local electromagnetic field in optical frequencies. Resonance conditions are found. The maximum possible enhancement of the electric field in the nanogap is estimated as $\left|E_{max} \right|/ \left| E_{0} \right| \propto \left| \varepsilon_m \right|^{3} \varepsilon_{d}^{-1} \left( \Im \varepsilon_{m}\right) ^{-2}$ A simple ultranarrow-gaped resonator can be used for SERS sensing and infrared spectroscopy of adsorbed molecules. We assume that a plasmonic nanogap is simplest and most straightforward way to increase flexibility as well as sensitivity of the plasmon-enhanced spectroscopes.
Comment: 14 pages, 3 figures, 42 references |
| Document Type: |
Working Paper |
| Access URL: |
http://arxiv.org/abs/2111.05511 |
| Accession Number: |
edsarx.2111.05511 |
| Database: |
arXiv |
