Determination of the orientation of a single nano-emitter by polarisation analysis

Efficient coupling of nanoemitters to photonic or plasmonic structures requires control of the orientation of the emitting dipoles. Nevertheless control of the dipole orientation remains an experimental challenge. Many experiments rely on the realization of many samples, in order to be able to get one nanostructure coupled to a well aligned dipole. In order to avoid these statistical trials, the knowledge of the nature of the emitter (single or double dipole) and its orientation is crucial for a deterministical approach. We propose in this paper to determine the nature and the polarization of nanoemittor by polarization analysis of their emission.[1].