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HL: Fachverband Halbleiterphysik

HL 18: Photonic crystals I

HL 18.3: Vortrag

Dienstag, 27. März 2007, 11:15–11:30, H13

Plasmon hybridization in stacked cut-wire metamaterials near metal films — •na liu¹, hongcang guo¹, liwei fu¹, heinz Schweizer¹, stefan kaiser², and harald giessen¹ — ¹4. Physikalisches Institut,Universitaet Stuttgart, Pfaffenwaldring 57, 70500, stuttgart, Germany — ²1. Physikalisches Institut,Universitaet Stuttgart, Pfaffenwaldring 57, 70500, stuttgart, Germany

Abstract: We introduce a simple and convenient method to stack artificial units for metamaterials in the third dimension. Cut-wires and cut-wire pairs are placed above a metal film so that image cut-wires or cut-wire pairs are induced by the metal mirror when illuminated by light [1], which is equivalent to stacking two or four layers of cut-wires. The optical properties of cut-wires and cut-wire pairs above metal mirrors are investigated experimentally and numerically. The resonant plasmon modes are interpreted utilizing directly stacked cut-wire structures according to the method of plasmon hybridization [2]. Furthermore, the frequencies of different plasmon modes as a function of cut-wire separation are explored numerically. This method should pave the road towards a fundamental understanding of the electronic and optical properties of 3D metamaterials.

[1] V. A. Podolskiy, A. K. Sarchev, and V. M. Shalaev, Opt. Express 2003, 11, 735. [2] E. Prodan, C. Radloff, N. J. Halas, and P. Norlander, Science 2003, 302, 419.