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Rostock 2019 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 15: Nano-Optics (Plasmonics)

Q 15.4: Talk

Monday, March 11, 2019, 15:00–15:15, S SR 112 Maschb.

Modeling of harmonic generation in plasmonic structures with complex geometries — •Josselin Defrance, Lili Gui, Mario Hentschel, Harald Giessen, and Thomas Weiss — 4th Physics Institute and Research Centers SCoPE, University of Stuttgart, Germany

The harmonic generation in plasmonic structures has been the subject of many studies over the recent years. In this context, numerical methods play a crucial role in order to understand and enhance the nonlinear optical phenomena. Among the plethora of potential methods, we will focus here on the Fourier modal method and show how to combine it for second-harmonic emission with curvilinear coordinates in order to achieve a faster convergence of the numerical results [1]. Particularly, we will discuss how to include the hydrodynamic model to account for electron-electron interaction inside metallic nanostructures. In addition, we will show numerical results of third-harmonic emission from chiral nanoantenna arrangements.

[1] J. Defrance et al., Opt. Express 26, 13746-13758 (2018).

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