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O: Fachverband Oberflächenphysik

O 91: Scanning Probe Microscopy: Light Matter Interaction at Atomic Scales III

O 91.1: Topical Talk

Donnerstag, 21. März 2024, 15:00–15:30, MA 041

SPM on the path to direct nano-optical measurements — •Martin Svec — Institute of Physics, CAS, CZ — Institute of Organic Chemistry and Biochemistry, CAS, CZ

Exploration of essential photophysics at the level of individual molecules and atoms requires highly specialized optical spectroscopies that work at the very limit of instrument sensitivity or have to use plasmonic nanostructures - in order to overcome the fundamental resolution limits achievable with visible and infrared light. Recent developments emerging in the field of Scanning Probe Microscopy (SPM) bring the unique opportunity to pursue intriguing, often hard-to-access interactions between light and matter with plasmonic tips at submolecular scale. The modes of operation can be switched between the electroluminescence, photoluminescence and tip-enhanced Raman spectroscopies, and applied to probe the eigenmodes, charges, vibronics and temporal evolution of the transient states (TCSPC) in molecular emitters at nanoscopic scales.

References

[1] ACS Nano 16, 1082 (2022)

[2] Nature Comm. 13, 6008 (2022)

[3] arXiv:2310.12546 (2023)

[4] arXiv:2309.04416 (2023)

Keywords: SPM; photoluminescence; electroluminescence; TERS; TCSPC