Tomographic reconstruction of quasistatic surface polariton fields

TL;DR

This paper presents a theoretical method for reconstructing three-dimensional surface polariton fields around nanoparticles using electron energy loss spectroscopy data, enabling detailed photonic environment analysis.

Contribution

The study introduces a novel tomographic reconstruction approach for 3D photonic fields around nanoparticles based on EELS maps, including rough and smooth nanorods.

Findings

Reconstructed fields closely match simulated local density of states.

The method effectively distinguishes surface polariton variations on nanorods.

Discussion of limitations and future improvements for the tomography scheme.

Abstract

We theoretically investigate the tomographic reconstruction of the three-dimensional photonic environment of nanoparticles. As input for our reconstruction we use electron energy loss spectroscopy (EELS) maps for different rotation angles. We perform the tomographic reconstruction of surface polariton fields for smooth and rough nanorods, and compare the reconstructed and simulated photonic local density of states, which are shown to be in very good agreement. Using these results, we critically examine the potential of our tomography scheme, and discuss limitations and directions for future developments.