Regensburg 2025 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 96: Plasmonics and Nanooptics: Light-Matter Interaction, Spectroscopy II
O 96.1: Vortrag
Freitag, 21. März 2025, 10:30–10:45, H4
Enhancing light-matter interaction through inverse design of optical devices. — •Carlos Bustamante1, Mark Svendsen2, Franco Bonafé1, Burak Gurlek1, Maxim Sukharev3, Abraham Nitzan4, and Angel Rubio1 — 1MPSD, Hamburg, Germany — 2Niels Bohr Institute, University of Copenhagen, Denmark — 3Department of Physics, Arizona State University, USA — 4Department of Chemistry, University of Pennsylvania, USA
Light-matter interaction plays a crucial role in processes such as spontaneous emission, energy transfer and polaritonic formation. This interaction is sensitive to alterations in the electromagnetic environment which can be caused by the presence of optical materials. In classical optics, changes in the topology of optical materials can lead to the fabrication of optical devices tailored towards specific characteristics, using inverse design methodologies like density-based topology optimization (TO). This work presents the application of optical devices, derived from TO, that can be used to modify light-matter interaction among molecules. To achieve this, we have implemented a TO algorithm that can solve Maxwell equations in the frequency domain on a 2D grid. These tailored devices enhance locally one component of the transverse electric field obtained from classical emitters. In subsequent semiclassical simulations, Maxwell equations were classically propagated with the emitters replaced by pentacene molecules using the quantum mechanical simulation software DFTB+. The results highlight the significant potential of optical devices produced by TO to influence the above-mentioned processes.
Keywords: Inverse design; Topological optimization; Light-matter interaction; Maxwell equations