Regensburg 2016 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 40: On-Chip Quantum Photonics II
HL 40.3: Vortrag
Dienstag, 8. März 2016, 15:45–16:00, H16
On-chip Photodetectors using Electrically Contacted Quantum Dot Micropillars — •Pierce Munnelly1, Matthias Karow1, Tobias Heindel1, Martin Kamp2, Sven Höfling2, Christian Schneider2, and Stephan Reitzenstein1 — 1Institut für Festkörperphysik, Technische Universität Berlin, Berlin, Germany — 2Technische Physik, Universität Würzburg, Würzburg, Germany
An important goal of nanophotonics is to unite the generation of coherent or single-photon states of light with efficient manipulation and detection techniques for advanced schemes in quantum information science. As the optical parts of the circuits are more heavily integrated and components are shrunk to smaller and smaller scales, it will also become harder to assess and control the quality of light sources within optoelectronic devices via conventional out-of-plane detection methods such as micro-photoluminescence spectroscopy.
In this contribution, a novel, micrometer-scaled, on-chip photon detector will be presented. The detector is based on an electrically contacted quantum dot micropillar and operates in the regime of cavity quantum electrodynamics. The potential of our concept is exemplarily demonstrated by determining the input-output characteristics and the threshold current of a monolithically integrated whispering gallery mode laser.