Ferdele, S;Jose, B;Foster, R;Keyes, TE;Rice, JH

2017

October

Optical Materials

Strong coupling in porphyrin J-aggregate excitons and plasmons in nano-void arrays

Published

7 ()

INGAN QUANTUM DOTS RAMAN-SCATTERING ENHANCED RAMAN FLUORESCENCE

72

680

684

Active plasmonic nano-void arrays made through colloidal lithography (a cost effective and rapid process) potentially offers opportunities for scalable device design. In this work we demonstrate strong coupling between Bragg-like quadrupole surface plasmon modes in nano-void substrate designs with Frankel excitons in a molecular J-aggregate layer though angular tuning. The enhanced exciton plasmon coupling creates a Fano like line shape in the differential reflection spectra associated with the formation of new hybrid states, leading to anti-crossing of the upper and lower polaritons with a Rabi frequency of 120 meV. (C) 2017 Elsevier B.V. All rights reserved.

AMSTERDAM

0925-3467

10.1016/j.optmat.2017.07.018