K
K. Hennessy
Researcher at University of California, Santa Barbara
Publications - 35
Citations - 4948
K. Hennessy is an academic researcher from University of California, Santa Barbara. The author has contributed to research in topics: Photonic crystal & Quantum dot. The author has an hindex of 20, co-authored 35 publications receiving 4714 citations. Previous affiliations of K. Hennessy include ETH Zurich & California NanoSystems Institute.
Papers
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Journal ArticleDOI
Quantum nature of a strongly coupled single quantum dot–cavity system
K. Hennessy,Antonio Badolato,Martin Winger,Dario Gerace,Mete Atatüre,S. Gulde,Stefan Fält,Evelyn L. Hu,Atac Imamoglu +8 more
TL;DR: Observations unequivocally show that quantum information tasks are achievable in solid-state cavity QED by observing quantum correlations in photoluminescence from a photonic crystal nanocavity interacting with one, and only one, quantum dot located precisely at the cavity electric field maximum.
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Deterministic Coupling of Single Quantum Dots to Single Nanocavity Modes
TL;DR: A deterministic approach to the implementation of solid-state cavity quantum electrodynamics systems based on a precise spatial and spectral overlap between a single self-assembled quantum dot and a photonic crystal membrane nanocavity is demonstrated.
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Self-tuned quantum dot gain in photonic crystal lasers.
Stefan Strauf,K. Hennessy,Matthew T. Rakher,Y.S. Choi,Antonio Badolato,Lucio Claudio Andreani,Evelyn Hu,Pierre Petroff,Dirk Bouwmeester +8 more
TL;DR: Photon correlation measurements show a transition from a thermal to a coherent light state proving that lasing action occurs at ultralow thresholds, and it is demonstrated that very few quantum dots as a gain medium are sufficient to realize a photonic-crystal laser based on a high-quality nanocavity.
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Ultrafast all-optical switching by single photons
Thomas Volz,Andreas Reinhard,Martin Winger,Antonio Badolato,K. Hennessy,Evelyn L. Hu,Atac Imamoglu +6 more
TL;DR: In this paper, the authors demonstrate that the presence of a single photon on one of the fundamental polariton transitions can turn on light scattering on a transition from the first to the second Jaynes-Cummings manifold.
Journal ArticleDOI
Strongly correlated photons on a chip
Andreas Reinhard,Thomas Volz,Martin Winger,Martin Winger,Antonio Badolato,K. Hennessy,Evelyn L. Hu,Atac Imamoglu +7 more
TL;DR: In this paper, the authors observed a continuous change in photon correlations from strong antibunching to bunching by tuning either the probe laser or the cavity mode frequency, which is explained by the photon blockade and tunnelling in the anharmonic Jaynes-Cummings model.