2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) | 2019
Extreme Multiexciton Emission from Deterministically Assembled Single Emitter Subwavelength Plasmonic Patch Antenna
Abstract
Plasmonic antennas are attractive optical structures for many applications in nano and quantum technologies. They have the ability to confine light on highly sub-wavelength volumes to improve significantly light-matter interaction between single quantum emitters and plasmons. By providing enhanced interaction between a nanoemitter and light, they efficiently accelerate and direct spontaneous emission. One challenge, however, is the precise nanoscale positioning of the emitter in the structure [2]. Here we present the realization of a patch plasmonic antenna [2] consisting in a single colloidal core/shell CdSe/CdS deterministically positioned with three-dimensional nanoscale control between a thick gold layer and a thin gold-subwavelenth size-nano disk [3].