Cavity-assisted ultrafast long-range periodic energy transfer between plasmonic nanoantennas  

作　　者：Martin Aeschlimann Tobias Brixner Mirko Cinchetti Benjamin Frisch Bert Hecht Matthias Hensen Bernhard Huber Christian Kramer Enno Krauss Thomas H Loeber Walter Pfeiffer Martin Piecuch Philip Thielen 

机构地区：[1]Fachbereich Physik and Research Center OPTIMAS,University of Kaiserslautern,Erwin-Schrödinger-Str.46,Kaiserslautern 67663,Germany [2]Institut für Physikalische und Theoretische Chemie,Universität Würzburg,Am Hubland,Würzburg 97074,Germany [3]Röntgen Research Center for Complex Material Systems(RCCM),Universität Würzburg,Am Hubland,Würzburg 97074,Germany [4]Experimentelle Physik VI,Fakultät Physik,Technische Universität Dortmund,Dortmund 44221,Germany [5]Nano‐Optics and Bio‐Photonics Group,Department of Experimental Physics 5,Universität Würzburg,Am Hubland,Würzburg 97074,Germany [6]Fakultät für Physik,Universität Bielefeld,Universitätsstr.25,Bielefeld 33615,Germany [7]Nano Structuring Centre and Research Center OPTIMAS,Erwin-Schrödinger-Str.13,Kaiserslautern 67663,Germany [8]Graduate School of Excellence Materials Science in Mainz,Gottlieb-Daimler-Str.47,Kaiserslautern 67663,Germany

出　　处：《Light(Science & Applications)》2017年第1期144-149,共6页光（科学与应用)（英文版）

基　　金：supported by the German Science Foundation(DFG)within the SPP 1391(MA,TB,WP,BHe and EK);the GSC 266(PT);the ERC Consolidator Grant MULTISCOPE(TB)。

摘　　要：Radiationless energy transfer is at the core of diverse phenomena,such as light harvesting in photosynthesis1,energy-transfer-based microspectroscopies2,nanoscale quantum entanglement3 and photonic-mode hybridization4.Typically,the transfer is efficient only for separations that are much shorter than the diffraction limit.This hampers its application in optical communication and quantum information processing,which require spatially selective addressing.Here,we demonstrate highly efficient radiationless coherent energy transfer over a distance of twice the excitation wavelength by combining localized and delocalized5 plasmonic modes.Analogous to the Tavis–Cummings model,two whispering-gallery-mode antennas6 placed in the foci of an elliptical plasmonic cavity7 fabricated from single-crystal gold plates act as a pair of oscillators coupled to a common cavity mode.Time-resolved two-photon photoemission electron microscopy(TR 2P-PEEM)reveals an ultrafast long-range periodic energy transfer in accordance with the simulations.Our observations open perspectives for the optimization and tailoring of mesoscopic energy transfer and long-range quantum emitter coupling.

关 键 词：transfer PERIODIC quantum 

分 类 号：O43[机械工程—光学工程]