13 oct. 2016

Café des Sciences de PROMES - SOLSTICE le 18 octobre à 14h, Andreas Trügler, Plasmonics with Metallic Nanoparticles: Theory and Simulation

Plasmonics with Metallic Nanoparticles: Theory and Simulation

Speaker: Dr. Andreas Trügler

Date: 18.10.2016

Institute of Physics
University of Graz, Austria

Abstract: The electromagnetic properties of metal/dielectric interfaces at the nanoscale have attracted a vast amount of research effort in the last years, especially due to the progress of nanofabrication techniques. The ability of such nanostructures to sustain coherent electron oscillations known as surface plasmon polaritons, leads to electromagnetic fields confined to the metallic surface. And these surface-bound fields constitute a particularly powerful route for creating novel functional devices, ranging from ultra-sensitive molecular sensors, over new generations of optical computer chips to new artificial materials with almost magical properties. In this talk I will give an overview about the basic ideas of plasmonics [1] and I will introduce the so called boundary element method as a versatile numerical tool for the calculation of optical properties of metallic nanoparticles [2]. In the second part of the talk I will focus on some of our latest results, including the interaction of nanostructures with electrons [3] and plasmon tomography [4, 5].

[1] A. Trügler, Optical Properties of Metallic Nanoparticles, Springer book (2016)
[2] U. Hohenester and A. Trügler, Comp. Phys. Commun. 183, 370 (2012)
[3] P. Dombi et al., Nano Letters 13, 674 (2013)
[4] G. Haberfehlner et al., Nano Lett. 15, 7726 (2015).
[5] A. Hörl et al., ACS Photonics 2, 1429 (2015).