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Berlin 2018 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 13: Poster Session I

HL 13.68: Poster

Monday, March 12, 2018, 17:30–19:30, Poster B

White-light and second-harmonic generation in various SnS-based cluster molecules — •Nils Mengel1,3, Eike Dornsiepen2, Florian Dobener3, Nils Rosemann4, Stefanie Dehnen2, and Sangam Chatterjee31Faculty of Physics and Material Sciences Center, Philipps-Universität Marburg, Renthof 5, D-35032 Marburg, Germany — 2Department of Chemistry and Material Sciences Center, Philipps-Universität Marburg, Hans-Meerweinstraße, D-35043 Marburg, Germany — 3Institute of Experimental Physics I, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, D-35392 Gießen, Germany — 4Department of Chemistry, Lund University, Naturvetarvägen 14, SE-22362, Lund, Sweden

Light sources providing a broad spectral range and well defined beam parameters are needed for numerous scientific experiments and technical applications. Lasers usually offer the advantageous beam properties but have a very small spectral width. To enhance the spectral bandwidth, high-harmonic or supercontinuum generations are commonly used. These require high-power lasers or highly nonlinear optical materials.

Powders containing SnS-based cluster molecules offer very strong nonlinear properties. They enable low-etendue, directional broadband supercontinua even when irradiated with a continuous-wave laser diode. Here, we present the nonlinear optical response of various powder compositions aiming to achieve a better understanding of the underlying processes responsible for the white light generation.

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