TY - JOUR
T1 - Subradiance-enhanced excitation transfer between dipole-coupled nanorings of quantum emitters
AU - Moreno-Cardoner, Maria
AU - Plankensteiner, David
AU - Ostermann, Laurin
AU - Chang, Darrick E.
AU - Ritsch, Helmut
PY - 2019/8/7
Y1 - 2019/8/7
N2 - © 2019 American Physical Society. A ring of dipole-coupled quantum emitters positioned at subwavelength distances possesses only a few radiant but many subradiant collective excitations with lifetimes growing exponentially with the atom number. These exhibit a three-dimensionally confined spatial radiation field pattern and form nanoscale high-Q optical resonators. Tailoring size, orientation, and distance between two rings allows for increasing the ratio of coherent ring-to-ring energy transfer versus free-space emission by orders of magnitude. In particular, the more dark and delocalized over several sites are excitons, the higher is their fidelity for transport to a second ring.
AB - © 2019 American Physical Society. A ring of dipole-coupled quantum emitters positioned at subwavelength distances possesses only a few radiant but many subradiant collective excitations with lifetimes growing exponentially with the atom number. These exhibit a three-dimensionally confined spatial radiation field pattern and form nanoscale high-Q optical resonators. Tailoring size, orientation, and distance between two rings allows for increasing the ratio of coherent ring-to-ring energy transfer versus free-space emission by orders of magnitude. In particular, the more dark and delocalized over several sites are excitons, the higher is their fidelity for transport to a second ring.
U2 - 10.1103/PhysRevA.100.023806
DO - 10.1103/PhysRevA.100.023806
M3 - Article
VL - 100
M1 - 023806
ER -