Regensburg 2010 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 54: Photonic Crystals: Theory

HL 54.6: Talk

Thursday, March 25, 2010, 15:15–15:30, H13

Simulation model of 2D metallic photonic quasicrystals — •Christina Bauer, Georg Kobiela, and Harald Giessen — 4th Physics Institute, University of Stuttgart, 70550 Stuttgart, Germany

We are going to present a step-by-step model to predict the optical properties of 2D metallic photonic quasicrystals. For this model a 2D Fourier transform of the spatial arrangement of the nanoparticles in combination with polarization properties and dispersion relations is used. In the final step the line shape of such structures is considered. We manufactured a number of these structures and verified our model which yields very good quantitative agreement. This model can also be extended for angle-dependent incidence of the light, which we confirmed experimentally as well. We verify our results also for 2D rectangular lattices. Our findings are important for plasmonics in quasicrystal arrangements in general, for example in nanohole arrays [1, 2, 3].

[1] T. Matsui et al., Nature 446, 517 (2007).

[2] C. Rockstuhl et al., Appl. Phys. Lett. 91, 151109 (2007).

[3] N. Papasimakis et al., Appl. Phys. Lett. 91, 081503 (2007).