Chip-compatible quantum plasmonic launcher
Abstract
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 easily obtained by directly coupling emitters to photonic waveguides. The realization of practical devices requires that both the emission speed-up and efficient out-couping are achieved in a single architecture. Here, we propose a novel platform that effectively combines on-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 NV 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 towards the practical realization of high-speed on-chip quantum networks.
Cite
@article{arxiv.1910.03005,
title = {Chip-compatible quantum plasmonic launcher},
author = {Chin-Cheng Chiang and Simeon I. Bogdanov and Oksana A. Makarova and Xiaohui Xu and Soham Saha and Deesha Shah and Di Wang and Alexei S. Lagutchev and Alexander V. Kildishev and Alexandra Boltasseva and Vladimir M. Shalaev},
journal= {arXiv preprint arXiv:1910.03005},
year = {2019}
}