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Chip‐Compatible Quantum Plasmonic Launcher

Journal Article · · Advanced Optical Materials
 [1];  [2];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. School of Electrical &, Computer Engineering and Birck Nanotechnology Center Purdue University West Lafayette IN 47907 USA, Purdue Quantum Science and Engineering Institute Purdue University West Lafayette IN 47907 USA
  2. School of Electrical &, Computer Engineering and Birck Nanotechnology Center Purdue University West Lafayette IN 47907 USA, Purdue Quantum Science and Engineering Institute Purdue University West Lafayette IN 47907 USA, Department of Electrical and Computer Engineering University of Illinois at Urbana‐Champaign Urbana IL 60801 USA, Nick Holonyak Jr. Micro and Nanotechnology Laboratory University of Illinois at Urbana‐Champaign Urbana IL 61801 USA
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 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.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0017717
OSTI ID:
1644347
Alternate ID(s):
OSTI ID: 1852408
Journal Information:
Advanced Optical Materials, Journal Name: Advanced Optical Materials Journal Issue: 20 Vol. 8; ISSN 2195-1071
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

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