3 years ago

On-Chip Single-Plasmon Nanocircuit Driven by a Self-Assembled Quantum Dot

On-Chip Single-Plasmon Nanocircuit Driven by a Self-Assembled Quantum Dot
Hongyi Zhang, Yongheng Huo, Markus Lippitz, Ping Jiang, Xiaofei Wu, Oliver G. Schmidt, Gary Razinskas, Klas Lindfors, Bert Hecht, Martin Kamp, Armando Rastelli
Quantum photonics holds great promise for future technologies such as secure communication, quantum computation, quantum simulation, and quantum metrology. An outstanding challenge for quantum photonics is to develop scalable miniature circuits that integrate single-photon sources, linear optical components, and detectors on a chip. Plasmonic nanocircuits will play essential roles in such developments. However, for quantum plasmonic circuits, integration of stable, bright, and narrow-band single photon sources in the structure has so far not been reported. Here we present a plasmonic nanocircuit driven by a self-assembled GaAs quantum dot. Through a planar dielectric-plasmonic hybrid waveguide, the quantum dot efficiently excites narrow-band single plasmons that are guided in a two-wire transmission line until they are converted into single photons by an optical antenna. Our work demonstrates the feasibility of fully on-chip plasmonic nanocircuits for quantum optical applications.

Publisher URL: http://dx.doi.org/10.1021/acs.nanolett.7b01284

DOI: 10.1021/acs.nanolett.7b01284

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