Non-linear plasmon-exciton coupling in monolithic nanocrystals (W03)

• Subject Area: Experimental Condensed Matter Physics ; Solid State and Surface Chemistry, Material Synthesis ; Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas
• Term: since 2022
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 441234705

In project W03, we aim to reveal the mechanisms of nonlinear exciton-plasmon coupling in the monolithic system copper monosulfide (CuS), which combines in one nano unit excitonic and plasmonic transitions in spectral vicinity. Our goal is to enhance nonlinear optical phenomena to a maximum by systematically modifying shape, size, and geometry of sheet-like CuS nanocrystals. Steady-state and time-resolved spectroscopy will be employed to study the photoluminescence for nonlinear excitation. A systematic experimental study will be flanked by theoretical efforts, unravelling the fundamental mechanisms and efficient strategies for near-infrared light harvesting based on surface plasmon-induced phenomena.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1477: Light-Matter Interactions at Interfaces (LiMatI)
• Applicant Institution: Universität Rostock
• Project Heads: Rostyslav Lesyuk, Ph.D., since 1/2022; Professor Dr. Stefan Scheel, since 1/2022