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Wednesday, August 13 • 10:20 - 12:20
Quantum Optics, Nanophotonics V

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10:20-10:35
Oral: Bart de Nijs
Image Excitons & Plasmon-Exciton Strong Coupling in 2D Perovskite Semiconductors
Co-authors: Wendy Niu, Lindsey Ibbotson, David Leipold, Erich Runge, G. Vijaya Prakash, Jeremy Baumberg

10:35-10:50
Oral: Danqing Wang
Progress Towards Coupling of InGaN QDs & GaN Nanobeam Cavities
Co-authors: Tim Puchtler

10:50-11:20

Invited: Robert Stockill
Direct Photonic Coupling of a Quantum Dot & a Trapped Ion
Co-authors: Claire Le Gall, Matthias Steiner, Hendrik-Marten Meyer, Clemens Matthiesen, Jakob Reichel, Edmund Clarke, Arne Ludwig, Michael KohlMete Atature

Confined spins in solids and electronic states of single atoms present two well-studied, contrasting systems which may be suitable for the construction of a hybrid network of complementary quantum devices. However, their disparate physical properties raise the question of the feasibility of realising a direct interface. Here, we present the first successful photonic coupling between a semiconductor quantum dot (QD) and a single atom. We show that resonantly scattered photons from a self-assembled InGaAs QD can be absorbed by a single Ytterbium ion trapped in a high-finesse fibre-based cavity.

An optical link in the near-infrared is formed by bringing the quantum dot into resonance with an atomic Yb+ transition at 935 nm. By monitoring ion state transfer due to quantum dot photon absorption we extract photon absorption rates. We find a peak efficiency of above 1% per QD photon arriving at the ion-cavity system.

Whilst the natural spectral linewidths of the quantum dot and ion transitions differ by a factor of >60, sub linewidth emission spectra have been demonstrated from QDs through low power coherent scattering (s « 1), enabling bandwidth matching to the narrow ion transition. We study the extent to which efficient coupling relies on coherent scattering. Furthermore we observe ion absorption rates dependent on spin state preparation of a negatively charged quantum dot. Based on these results, the exchange of quantum information between these highly contrasting systems is within experimental reach.

11:20-11:35
Oral: Savvas Germanis
Near RT Emission from a Single Piezoelectric InAs Quantum Dot & Temperature Dependent Anti-Bunching Experiments
Co-authors: Léonard Monniello, Richard Hostein, Antonis Stavrinidis, George Constantinidis, Zacharias Hatzopoulos, Valia Voliotis, Nikos Pelekanos

11:35-11:50
Oral: Andreas V. Kuhlmann
Spin Noise in a Self-Assembled Semiconductor Quantum Dot
Co-authors: Jonathan H. Prechtel, Julien Houel, Arne Ludwig, Dirk Reuter, Andreas D. Wieck, Richard J. Warburton

11:50-12:05
Oral: Hidekazu Kumano
Second-Order & Bosonic Interference Properties of a Quantum Dot with Silver Microcolumnar Photon Reflector
Co-authors: Liu Xiangming, Hideaki Nakajima, Satoru Odashima, Ikuo Suemune

12:05-12:20
Stephan Kapfinger
Radio Frequency Acousto-Mechanical Tuning of a Photonic Molecule 
Co-authors: Thorsten Reichert, Michael Kaniber, Jonathan J. Finley, Achim Wixforth, Hubert J. Krenner 

Session Chairs
GS

Glenn Solomon

University of Maryland

Speakers
RS

Robert Stockill

University of Cambridge


Wednesday August 13, 2014 10:20 - 12:20
Room 18AB

Attendees (11)