Publikationsdatum:
2015-11-18
Beschreibung:
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 μ eV at resonance along with cavity-cavity coupling strengths between 2.5 meV and 60 μ eV for the ground cavity state.
Print ISSN:
0003-6951
Digitale ISSN:
1077-3118
Thema:
Physik
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