Chip-Compatible Quantum Plasmonic Launcher

Chin Cheng Chiang, Simeon I. Bogdanov, Oksana A. Makarova, Xiaohui Xu, Soham Saha, Deesha Shah, Zachariah O. Martin, Di Wang, Alexei S. Lagutchev, Alexander V. Kildishev, Alexandra Boltasseva, Vladimir M. Shalaev

Research output: Contribution to journalArticlepeer-review


Integrated on-demand single-photon sources are critical for the implementation of photonic quantum information processing systems. To enable practical quantum photonic devices, the emission rates of solid-state quantum emitters need to be substantially enhanced and the emitted signal must be directly coupled to an on-chip circuitry. The photon emission rate speed-up is best achieved via coupling to plasmonic antennas, while on-chip integration can be realized by directly coupling emitters to photonic waveguides. The realization of practical devices requires that both the emission speed-up and efficient out-coupling are achieved in a single architecture. Here, a novel architecture is proposed that combines chip compatibility with high radiative emission rates—a quantum plasmonic launcher. The proposed launchers contain single nitrogen-vacancy (NV) centers in nanodiamonds as quantum emitters that offer record-high average fluorescence lifetime shortening factors of about 7000 times. Nanodiamonds with single NVs are sandwiched between two silver films that couple more than half of the emission into in-plane propagating surface plasmon polaritons. This simple, compact, and scalable architecture represents a crucial step toward the practical realization of high-speed on-chip quantum networks.

Original languageEnglish (US)
Article number2000889
JournalAdvanced Optical Materials
Issue number20
StatePublished - Oct 1 2020


  • in-plane emission
  • nitrogen-vacancy centers
  • plasmonic launchers
  • quantum plasmonics
  • single-photon sources

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics


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