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Berlin 2012 – scientific programme

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DF: Fachverband Dielektrische Festkörper

DF 13: Poster II

DF 13.14: Poster

Wednesday, March 28, 2012, 15:00–17:30, Poster E

Correlation between size evolution and optical properties of ion beam synthesized silver nanoclusters in lithium niobate — •Jura Rensberg, Steffen Milz, Carsten Ronning, and Werner Wesch — Institut für Festkörperphysik, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany

Metal nanoclusters embedded in various dielectrics gained a lot of interest for plasmonic applications like optical filters or plasmonic wave- guides in the last two decades. Because of its unique electro-optical and nonlinear optical properties, lithium niobate (LiNbO3) is one of the most important materials for integrated optics. Noble metals like silver are of particular relevance for cluster formation in LiNbO3, because of its distinctive surface plasmon resonance (SPR) located in the visible spectral range. We have implanted 380 keV Ag+ ions up to an ion fluence of 1x1017 cm−2 into LiNbO3 at room temperature and 673 K. Isochronal rapid thermal annealing as well as isothermal annealing were performed in the temperature range of 573 K to 1173 K, resulting in the formation of silver nanoclusters with different size distributions and a reduction of irradiation damage. The samples were analyzed by means of RBS-channeling, and STEM as well as optical spectroscopy. The correlation between structural and optical properties will be discussed in detail in this study.

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