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Dresden 2011 – scientific programme

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O: Fachverband Oberflächenphysik

O 50: Plasmonics and Nanooptics V

O 50.5: Talk

Wednesday, March 16, 2011, 16:00–16:15, WIL A317

Dispersion engineering in a plasmonic microcavity through mode interaction — •Liwei Fu1, Heinz Schweizer1, Thomas Weiss1,3, Philipp Schau2, Karsten Frenner2, Wolfgang Osten2, and Harald Giessen114th Physics Institute and Research Center SCoPE, University of Stuttgart, Germany — 2Institut für Technische Optik and Research Center SCoPE, University of Stuttgart, Germany — 3LASMEA, Université Blaise Pascal, F-63177 Aubière Cedex, France

Microcavities provide the possibility to control and enhance light-matter interaction, which is indispensable for future quantum optical communication [1]. Microcavities with two identical periodically corrugated metallic mirrors supporting surface plasmon polaritons can further confine optical fields into a subwavelength regime. In this report, we demonstrate that mode interactions between surface plasmons and a microcavity mode can be used to tune mode dispersion, which is essential for light matter interaction. We study here numerically how the surface plasmons interact with the cavity modes in both near and far field regimes in a metallic meander cavity via tuning the excitation strength of the surface plasmons [2].

[1] K. J. Vahala, ``Optical microcavities," Nature 424, 839 (2003).

[2] L. Fu, H. Schweizer, T. Weiss, and H. Giessen, ``Optical properties of metallic meanders," J. Opt. Soc. Am. B 26, B111 (2009).

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