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DOE OSTI · 22482194

Fully tuneable, Purcell-enhanced solid-state quantum emitters

Xia, T.·Pagliano, F.·Birindelli, S.·Zobenica, Z.·Fiore, A.·Midolo, L.·Li, L. H.·Linfield, E. H.
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Abstract

We report the full energy control over a semiconductor cavity-emitter system, consisting of single Stark-tunable quantum dots embedded in mechanically reconfigurable photonic crystal membranes. A reversible wavelength tuning of the emitter over 7.5 nm as well as an 8.5 nm mode shift are realized on the same device. Harnessing these two electrical tuning mechanisms, a single exciton transition is brought on resonance with the cavity mode at several wavelengths, demonstrating a ten-fold enhancement of its spontaneous emission. These results open the way to bring several cavity-enhanced emitters mutually into resonance and therefore represent a key step towards scalable quantum photonic circuits featuring multiple sources of indistinguishable single photons.

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71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICSCONTROLCRYSTALSEMISSIONEQUIPMENTMEMBRANESPHOTONSQUANTUM DOTSRESONANCESEMICONDUCTOR MATERIALSSOLIDSTUNINGWAVELENGTHS

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Xia, T., Pagliano, F., Birindelli, S., Zobenica, Z., Fiore, A., Midolo, L., Li, L. H., Linfield, E. H.. 2015-10-05. Fully tuneable, Purcell-enhanced solid-state quantum emitters. https://doi.org/10.1063/1.4932946

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