Spin-Polarized Photon Emission by Resonant Multipolar Nanoantennas

We demonstrate nanoscale spin control of photons emitted by an atomic system coupled to a compact plasmonic nanoantenna supporting phase-locked interference of different multipolar moments within a single resonance. Experimentally we observe chiral light emission from quantum dots over split-ring re...

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Bibliographic Details
Published in:	ACS photonics Vol. 1; no. 11; pp. 1218 - 1223
Main Authors:	Kruk, Sergey S, Decker, Manuel, Staude, Isabelle, Schlecht, Stefan, Greppmair, Michael, Neshev, Dragomir N, Kivshar, Yuri S
Format:	Journal Article
Language:	English
Published:	American Chemical Society 19-11-2014
Subjects:	nanoplasmonics quantum dots split-ring resonator Stokes coefficients emission control
Online Access:	Get full text
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Summary:	We demonstrate nanoscale spin control of photons emitted by an atomic system coupled to a compact plasmonic nanoantenna supporting phase-locked interference of different multipolar moments within a single resonance. Experimentally we observe chiral light emission from quantum dots over split-ring resonant nanoantennas, where the spin of the emitted photons is locked to their transverse momentum. We demonstrate that the polarization can vary from linear to elliptical with ellipticity reaching ±0.5 for emission into opposite halves of the symmetry plane of the nanoantenna.
ISSN:	2330-4022 2330-4022
DOI:	10.1021/ph500288u