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In forthcoming quantum networks various quantum systems might be involved to accomplish individual tasks, including storage of quantum states, quantum logic operations, error correction, or entanglement distillation. An interface between a single photon emitter and a potential photon storage could provide one fundamental building block of such a hybrid quantum system.
The development of miniature circuits that integrate single-photon sources, linear optical components, and detectors on a chip is one of the central research topics in quantum optics. Here plasmonic nanocircuits can play an essential role. So far the integration of quantum light sources into plasmonic circuits has been a challenge. In this work we present a quantum plasmonic nanocircuit driven by...
Self-assembled quantum dots (QDs) have emerged as attractive quantum systems for the generation of single and entangled photons for quantum information processing [1]. However, owing to the mesoscopic shape, strain and composition anisotropy, self-assembled QDs are subject to an inhomogeneous broadening and an energetic separation between two bright exciton states known as fine-structure-splitting...
We introduce a new class of quantum dot-based devices, in which the semiconductor structures are integrated on top of piezoelectric actuators. This combination allows us on one hand to study in detail the effects produced by variable strains (up to about 0.2%) on the excitonic emission of single quantum dots and on the other to manipulate their electronic- and optical properties to achieve specific...
Microphotoluminescence (μ-PL) measurements were carried out to investigate the optical properties of single Cd 0.6 Zn 0.4 Te/ZnTe quantum dots (QDs) grown on Si (001) substrate by using molecular beam epitaxy. The high quality of single Cd 0.6 Zn 0.4 Te/ZnTe QDs is witnessed by resolution-limited emission, negligible background and absence of measurable spectral jitter...
We report on Rabi oscillations in the ground state exciton transition of a single GaAs/AlGaAs quantum dot measured by a reflective, ultrafast pump-probe technique using only far field microscopic techniques.
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