Open AccessTunable polaritonic molecules in an open microcavity system
Author(s) -
S. Dufferwiel,
Feng Li,
A. A. P. Trichet,
L. Giriunas,
P. M. Walker,
I. Farrer,
D. A. Ritchie,
Jason M. Smith,
M. S. Skolnick,
D. N. Krizhanovskii
Publication year - 2015
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.4936092
Subject(s) - polariton , exciton , resonance (particle physics) , photonics , coupling (piping) , photon , optoelectronics , optical microcavity , cavity quantum electrodynamics , materials science , coupling strength , molecular physics , physics , atomic physics , optics , condensed matter physics , quantum , laser , quantum mechanics , open quantum system , metallurgy
© 2015 AIP Publishing LLC. We experimentally demonstrate tunable coupled cavities based upon open access zero-dimensional hemispherical microcavities. The modes of the photonic molecules are strongly coupled with quantum well excitons forming a system of tunable polaritonic molecules. The cavity-cavity coupling strength, which is determined by the degree of modal overlap, is controlled through the fabricated centre-to-centre distance and tuned in-situ through manipulation of both the exciton-photon and cavity-cavity detunings by using nanopositioners to vary the mirror separation and angle between them. We demonstrate micron sized confinement combined with high photonic Q-factors of 31 000 and lower polariton linewidths of 150 μeV at resonance along with cavity-cavity coupling strengths between 2.5 meV and 60 μeV for the ground cavity state
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