Publication Date:
2017-10-31
Description:
Author(s): Matthias C. Löbl, Immo Söllner, Alisa Javadi, Tommaso Pregnolato, Rüdiger Schott, Leonardo Midolo, Andreas V. Kuhlmann, Søren Stobbe, Andreas D. Wieck, Peter Lodahl, Arne Ludwig, and Richard J. Warburton Quantum dots in photonic crystal membrane structures are an attractive platform for on-chip quantum photonics. However, charge control of quantum dots in thin membranes is challenging. The widely used p-i-n diodes operate typically at high bias, resulting in high leakage currents. Here, a modified diode design is presented, fully compatible with the fabrication of photonic crystals, that enables deterministic charging of embedded quantum dots at small biases and, hence, small currents. Narrow optical linewidths and optical spin pumping are demonstrated on quantum dots in this ultrathin diode structure. [Phys. Rev. B 96, 165440] Published Mon Oct 30, 2017
Keywords:
Surface physics, nanoscale physics, low-dimensional systems
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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