title: Power flow from a dipole emitter near an optical antenna.
abstract: Current methods to calculate the emission enhancement of a quantum emitter coupled to an optical antenna of arbitrary geometry rely on analyzing the total Poynting vector power flow out of the emitter or the dyadic Green functions from full-field numerical simulations. Unfortunately, these methods do not provide information regarding the nature of the dominant energy decay pathways. We present a new approach that allows for a rigorous separation, quantification, and visualization of the emitter output power flow captured by an antenna and the subsequent reradiation power flow to the far field. Such analysis reveals unprecedented details of the emitter/antenna coupling mechanisms and thus opens up new design strategies for strongly interacting emitter/antenna systems used in sensing, active plasmonics and metamaterials, and quantum optics.
authors: Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA. khu834@stanford.edu
authors: Kevin C Y
authors: KC
authors: Huang
authors: Young Chul
authors: YC
authors: Jun
authors: Min-Kyo
authors: MK
authors: Seo
authors: Mark L
authors: ML
authors: Brongersma
mesh_terms: D003198:Computer Simulation; D004867:Equipment Design; D007368:Interferometry / Q000295:instrumentation*; D008027:Light; D008962:Models, Theoretical; D049329:Nanostructures; D055095:Optics and Photonics; D012542:Scattering, Radiation