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SYNP: Functional Nanoparticles

SYNP 1: Functional Nanoparticles - I

SYNP 1.2: Invited Talk

Tuesday, March 9, 2004, 10:15–10:45, H1

Nano-Optics with Chemically Functionalized Metal Nanoparticles — •Jochen Feldmann — Photonics and Optoelectronics Group, Physics Department and CeNS, Ludwig-Maximilians-Universität München, Amalienstrasse 54, D-80799 München, Germany

Hybrid systems comprising (bio-)molecules with specific functions and metal nanoparticles of variable geometry and size offer unique and novel possibilities in nano-optics and optical bio-sensing. When molecules and metal nanoparticles approach each other, their mutual interaction leads to characteristic changes in the fluorescent [1] and light scattering properties [2]. Time-resolved fluorescence spectroscopy and single particle light scattering techniques are well suited to study such processes in detail. Potential applications in bio-photonics and medical diagnostics are discussed.

[1] E. Dulkeith, A.C. Morteani, T. Niedereichholz, T.A. Klar, J. Feldmann, S. Levi, F.C. van Veggel, D.N. Reinhoudt, and M. Möller, Phys. Rev. Lett. 89, 203002 (2002)

[2] G. Raschke, S. Kowarik, T. Franzl, C. Sönnichsen, T.A. Klar, J. Feldmann, A. Nichtl, K. Kürzinger, Nano Letters 3, 935 (2003)