Hot-spot-assisted coherent nonlinear Raman spectroscopy towards single-molecule resolution and time-resolution (C01)

• Subject Area: Physical Chemistry of Molecules, Liquids and Interfaces, Biophysical Chemistry ; Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas
• Term: since 2019
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 398816777

Project C1 aims at combining two Raman enhancement effects, namely plasmonic hotspots and nonlinear coherent excitation of Raman vibrations to study the dynamics of local chemical reactions triggered by plasmonic hotspot-induced local stimuli (heat, electrons, or high field) at the nanoscale and single-molecule level. In the first funding period, the plasmonic nanostructures and the optical/spectroscopic setup necessary for single-molecule surface-enhanced anti-Stokes Raman scattering were established. Based on these successes, the aim now will be to study hotspot-induced chemical reactions at ultimate sensitivity (single-molecule level) and temporal resolution (single-pulse spectroscopy).

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1375: Nonlinear Optics down to Atomic scales (NOA)
• Applicant Institution: Friedrich-Schiller-Universität Jena
• Co-Applicant Institution: Leibniz-Institut für Photonische Technologien e.V. (IPHT)
• Project Heads: Dr. Jer-Shing Huang; Professor Dr. Jürgen Popp