SurfaceScience21 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
O: Fachverband Oberflächenphysik
O 83: Poster Session VI: Poster to Mini-Symposium: Infrared nano-optics IV
O 83.2: Poster
Mittwoch, 3. März 2021, 13:30–15:30, P
Nanoimaging of vibrational strong coupling between propagating phonon polaritons and organic molecules — •A Bylinkin1,2, M Schnell1, M Autore1, F Calavalle1, P Li1, J Taboada-Gutierrez3, S Liu4, J Edgar4, F Casanova1, L Hueso1, P Gonzalez3, A Nikitin2, and R Hillenbrand1 — 1CIC nanoGUNE BRTA, Spain — 2DIPC, Spain — 3Universidad de Oviedo, Spain — 4Kansas State University Manhattan, USA
Enhanced light-matter interaction in polar crystals attracts considerable attention since the latter support phonon polaritons (PPs) - hybrid electromagnetic modes involving atomic vibrations. PPs in the thin slab of van de Waals materials (vdW) demonstrate long lifetime and ultra-high field confinement which can lead to intriguing vibrational strong coupling (VSC) phenomena and potential sensing applications. Recently VSC between h-BN nano-resonators and molecular vibration has been demonstrated. However, the basic interaction between molecular vibrations and propagating PPs in unstructured slabs of the vdW materials has not yet studied. In this work, we use nanoimaging techniques to study the interaction between propagating h-BN PPs and organic molecular vibrations. We performed near-field polariton interferometry, showing that VSC leads to the formation of a hybrid mode with a pronounced anti-crossing region in its dispersion. Our work shows the fundamental study of the strong-coupling between molecular vibration and propagating PPs.