Hannover 2016 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 4: Photonics I

Q 4.7: Vortrag

Montag, 29. Februar 2016, 12:30–12:45, f342

Nonlinear metamaterials with amplification and absorption — •Sebastian Erfort, Sascha Böhrkircher, Holger Cartarius, and Günter Wunner — 1. Institut für Theoretische Physik, Universität Stuttgart, 70550 Stuttgart, Germany

Although originally discussed in the context of non-Hermitian quantum mechanics, PT symmetry has been demonstrated experimentally in optics and other areas. Recently, PT symmetry has also entered the experimental field of metamaterials [1]. The investigation of polarization eigenstates of metasurfaces with anisotropic absorption has revealed PT symmetry breaking at a critical coupling strength of the two orthogonal orientations of the dipoles. Investigations so far have been restricted to linear wave propagation in metasurfaces. In our work we extend this to nonlinear metamaterials and investigate this extension with examples composed of split ring resonators or optical breather setups. We will study the influence of the nonlinearity in both cases.

[1] M. Lawrence, et al., Phys. Rev. Lett. 113, 093901 (2014)