Regensburg 2016 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 59: Optical Properties II

HL 59.6: Hauptvortrag

Mittwoch, 9. März 2016, 16:00–16:30, H10

Discontinuous Galerkin Methods in Nano-Photonics — •Kurt Busch — Humboldt Universität zu Berlin, Institut für Physik, AG Theoretische Optik & Photonik, 12489 Berlin and Max-Born-Institut, 12489 Berlin, Germany

Discontinuous Galerkin (DG) methods facilitate efficient computations of nano-photonic systems [1] by combining the flexibility of finite element approaches with efficient time-stepping capabilities. While the former allows for an accurate representation of complex geometries, the latter requires material models that are amenable to auxiliary differential equations techniques. This latter aspect specifically includes material models for magneto- [2] and/or nonlinear-optical properties. In this talk, the present state of Discontinuous Galerkin Time-Domain (DGTD) approaches to nano-photonic systems is presented. This includes (i) methodic aspects such as convergence properties of DGTD computations with regards to the above-mentioned material models as well as (ii) selected applications such as the computation electron energy loss spectra [3,4] and modified emission dynamics [5], and the nonlinear-optical properties of plasmonic nanostructures [6,7].

[1] K. Busch et al., Laser Photon. Rev. 5, 773 (2011)

[2] C. Wolff et al., Opt. Express 21, 12022 (2013)

[3] F. von Cube et al., Nano Lett. 13, 703 (2013)

[4] B. Schröder et al., Phys. Rev B 92, 085411 (2015)

[5] A.W. Schell et al., Nano Lett. 14, 2623 (2014)

[6] A. Hille et al., J. Phys. Chem. C, in press

[7] D. Huynh et al., Appl. Phys. B, in press