Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session L05: The Chemical Physics of Molecular Polaritons V. Plasmonic Cavities
8:00 AM–10:48 AM,
Wednesday, March 4, 2020
Room: 111
Sponsoring
Units:
DCP DCMP DPOLY
Abstract: L05.00006 : Strong coupling beyond the light-line*
Presenter:
Kishan Menghrajani
(University of Exeter)
Authors:
Kishan Menghrajani
(University of Exeter)
William L Barnes
(University of Exeter)
We use a vibrational resonance in the polymer PMMA, incorporated into a microcavity with gold mirrors. Although the asymmetrically coupled surface plasmon (TM-1 ) mode has no cut-off, it lies outside the air light-line, we bring that mode inside the air light line by incorporating a grating structure into the lower gold mirror. The grating-scattered coupled plasmon mode is observed to strongly couple with the vibrational resonance. Our results indicate that this coupled plasmon mode should be taken into account when looking at how strong coupling may be used to alter/create molecular properties via strong coupling.
*Engineering and Physical Sciences Research Council (EPSRC, EP/L015331/1).
European Research Council (ERC-2016-AdG-742222).
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