Tomographic Reconstruction of Quasistatic Surface Polariton Fields

Raphael Hauer; Georg Haberfehlner; Gerald Kothleitner; Mathieu Kociak; Ulrich Hohenester

doi:10.1021/acsphotonics.2c01431

Tomographic Reconstruction of Quasistatic Surface Polariton Fields

ACS Photonics. 2022 Dec 14;10(1):185-196. doi: 10.1021/acsphotonics.2c01431. eCollection 2023 Jan 18.

Authors

Raphael Hauer¹, Georg Haberfehlner¹, Gerald Kothleitner^{1

2}, Mathieu Kociak³, Ulrich Hohenester⁴

Affiliations

¹ Graz Centre for Electron Microscopy, Steyrergasse 17, 8010Graz, Austria.
² Institute for Electron Microscopy and Nanoanalysis, Graz University of Technology, Steyrergasse 17, 8010Graz, Austria.
³ Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405Orsay, France.
⁴ Institute of Physics, University of Graz, Universitätsplatz 5, 8010Graz, Austria.

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.