Dresden 2017 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 33: Quantum Dots: Optical Properties I
HL 33.11: Vortrag
Dienstag, 21. März 2017, 12:45–13:00, POT 81
Deterministic generation of bright single resonance fluorescence photons from a Purcell-enhanced quantum dot-micropillar system — •Stefan Gerhardt1, Sebastian Unsleber1, Yu-Ming He1,3, Sebastian Maier1,3, Niels Gregersen4, Martin Kamp1, Christian Schneider1, and Sven Hoefling1,2,3 — 1Technische Physik, Physikalisches Institut and Wilhelm Conrad Roentgen-Research Center for Complex Material Systems, Universitaet Wuerzburg, Am Hubland, 97074 Wuerzburg — 2SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, KY16 9SS, United Kingdom — 3Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics & CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China — 4Department of Photonics Engineering, Technical University of Denmark, Ørsteds Plads, 2800 Kgs. Lyngby, Denmark
We report on the observation of bright emission of single photons generated via pulsed, resonance fluorescence conditions from a quantum dot deterministically centered in a micropillar cavity device via cryogenic optical lithography. The brightness of the QD fluorescence is greatly enhanced on resonance with the fundamental mode of the pillar, leading to an overall device efficiency of ν = (74 ± 4) % for a single photon emission as pure as g(2)(0) = 0.0092 ± 0.0004 with a two-photon wave packet overlap up to ν = (88 ± 3) %.