Energy Transfer and Interference by Collective Electromagnetic Coupling
- Scientific Highlights 17 September 2019 220 hits
Mayte Gómez-Castaño, Mayte Gómez-Castaño, Andrés Redondo-Cubero, Lionel Buisson, Jose Luis Pau, Agustin Mihi, Serge Ravaine, Renaud A. L. Vallée*, Abraham Nitzan, Maxim Sukharev*. Nano Lett. 2019, 19, 8, 5790-5795
The physics of collective optical response of molecular assemblies, pioneered by Dicke in 1954, has long been at the center of theoretical and experimental scrutiny. The influence of the environment on such phenomena is also of great interest due to various important applications in, e.g., energy conversion devices. In this Letter, we demonstrate both experimentally and theoretically the spatial modulations of the collective decay rates of molecules placed in proximity to a metal interface. We show in a very simple framework how the cooperative optical response can be analyzed in terms of intermolecular correlations causing interference between the response of different molecules and the polarization induced on a nearby metallic boundary and predict similar collective interference phenomena in excitation energy transfer between molecular aggregates.
Related Topics: Materials for energy and enviroment