Regensburg 2022 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

DS: Fachverband Dünne Schichten

DS 10: Gaede Prize Talks

DS 10.1: Preisträgervortrag

Dienstag, 6. September 2022, 09:40–10:10, H17

Atomic-Scale Optical Spectroscopy at Surfaces — •Takashi Kumagai — Fritz Haber Institute, Berlin, German — Institute for Molecular Science, Okazaki, Aichi, Japan — Laureate of the Gaede-Prize 2020

Light-matter interactions can be largely enhanced in the presence of optical near fields. Atomic-scale light-matter interactions in plasmonic ``picocavities'' has emerged as a new frontier of fundamental light science and technology [1]. However, the investigation of such light-matter interactions still involves significant challenges in both experiment and theory. A combination of plasmon-enhanced spectroscopy with low-temperature STM can provide a unique way to investigate intriguing physics resulting from the strong interaction between cavity-mode plasmon and matter even at atomic scales [2]. I will discuss our recent development toward atomic-scale optical spectroscopy in plasmonic STM junctions [3].

References: [1] Nat. Mater. 18, 668 (2019). [2] Nat. Rev. Phys. 3, 411 (2021). [3] Phys. Rev. Lett. 128, 206803 (2022); Nano Lett. 22, 2170 (2022); ACS Photonics 8, 2610 (2021); Nano Lett. 21, 4057 (2021); Nano Lett. 20, 5879 (2020); Nano Lett. 19, 5725 (2019); Nano Lett. 19, 3597 (2019).