The excited electronic states of nearby molecules are in general coupled via Coulomb interaction even in the absence of wavefunction overlap. When two different organic molecules having a nearly resonant excited state are close enough, the dipole-dipole interaction can significantly affect their optical response. Even though they do not chemically interact, concerning their coupling to light, such molecules do not act independently, but rather as a 'virtual heterodimer' the response of which stems from, but is different from that of each molecule alone. We discuss here a simple and general model to estimate their resonant nonlinear susceptibilities.
|Titolo:||Optical nonlinearities of hybrid pairs of organic molecules|
|Data di pubblicazione:||2013|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1088/0953-8984/25/41/415303|
|Parole Chiave:||INORGANIC QUANTUM-WELLS; ENERGY-TRANSFER; EXCITONS; NANOSTRUCTURES|
|Appare nelle tipologie:||1.1 Articolo in rivista|