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Heterogeneous Integration of Solid-State Quantum Systems with a Foundry Photonics Platform

[Image: see text] Diamond color centers are promising optically addressable solid-state spins that can be matter-qubits, mediate deterministic interaction between photons, and act as single photon emitters. Useful quantum computers will comprise millions of logical qubits. To become useful in constr...

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Autores principales: Weng, Hao-Cheng, Monroy-Ruz, Jorge, Matthews, Jonathan C. F., Rarity, John G., Balram, Krishna C., Smith, Joe A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10515700/
https://www.ncbi.nlm.nih.gov/pubmed/37743942
http://dx.doi.org/10.1021/acsphotonics.3c00713
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author Weng, Hao-Cheng
Monroy-Ruz, Jorge
Matthews, Jonathan C. F.
Rarity, John G.
Balram, Krishna C.
Smith, Joe A.
author_facet Weng, Hao-Cheng
Monroy-Ruz, Jorge
Matthews, Jonathan C. F.
Rarity, John G.
Balram, Krishna C.
Smith, Joe A.
author_sort Weng, Hao-Cheng
collection PubMed
description [Image: see text] Diamond color centers are promising optically addressable solid-state spins that can be matter-qubits, mediate deterministic interaction between photons, and act as single photon emitters. Useful quantum computers will comprise millions of logical qubits. To become useful in constructing quantum computers, spin-photon interfaces must, therefore, become scalable and be compatible with mass-manufacturable photonics and electronics. Here, we demonstrate the heterogeneous integration of NV centers in nanodiamond with low-fluorescence silicon nitride photonics from a standard 180 nm CMOS foundry process. Nanodiamonds are positioned over predefined sites in a regular array on a waveguide in a single postprocessing step. Using an array of optical fibers, we excite NV centers selectively from an array of six integrated nanodiamond sites and collect the photoluminescence (PL) in each case into waveguide circuitry on-chip. We verify single photon emission by an on-chip Hanbury Brown and Twiss cross-correlation measurement, which is a key characterization experiment otherwise typically performed routinely with discrete optics. Our work opens up a simple and effective route to simultaneously address large arrays of individual optically active spins at scale, without requiring discrete bulk optical setups. This is enabled by the heterogeneous integration of NV center nanodiamonds with CMOS photonics.
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spelling pubmed-105157002023-09-23 Heterogeneous Integration of Solid-State Quantum Systems with a Foundry Photonics Platform Weng, Hao-Cheng Monroy-Ruz, Jorge Matthews, Jonathan C. F. Rarity, John G. Balram, Krishna C. Smith, Joe A. ACS Photonics [Image: see text] Diamond color centers are promising optically addressable solid-state spins that can be matter-qubits, mediate deterministic interaction between photons, and act as single photon emitters. Useful quantum computers will comprise millions of logical qubits. To become useful in constructing quantum computers, spin-photon interfaces must, therefore, become scalable and be compatible with mass-manufacturable photonics and electronics. Here, we demonstrate the heterogeneous integration of NV centers in nanodiamond with low-fluorescence silicon nitride photonics from a standard 180 nm CMOS foundry process. Nanodiamonds are positioned over predefined sites in a regular array on a waveguide in a single postprocessing step. Using an array of optical fibers, we excite NV centers selectively from an array of six integrated nanodiamond sites and collect the photoluminescence (PL) in each case into waveguide circuitry on-chip. We verify single photon emission by an on-chip Hanbury Brown and Twiss cross-correlation measurement, which is a key characterization experiment otherwise typically performed routinely with discrete optics. Our work opens up a simple and effective route to simultaneously address large arrays of individual optically active spins at scale, without requiring discrete bulk optical setups. This is enabled by the heterogeneous integration of NV center nanodiamonds with CMOS photonics. American Chemical Society 2023-08-31 /pmc/articles/PMC10515700/ /pubmed/37743942 http://dx.doi.org/10.1021/acsphotonics.3c00713 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Weng, Hao-Cheng
Monroy-Ruz, Jorge
Matthews, Jonathan C. F.
Rarity, John G.
Balram, Krishna C.
Smith, Joe A.
Heterogeneous Integration of Solid-State Quantum Systems with a Foundry Photonics Platform
title Heterogeneous Integration of Solid-State Quantum Systems with a Foundry Photonics Platform
title_full Heterogeneous Integration of Solid-State Quantum Systems with a Foundry Photonics Platform
title_fullStr Heterogeneous Integration of Solid-State Quantum Systems with a Foundry Photonics Platform
title_full_unstemmed Heterogeneous Integration of Solid-State Quantum Systems with a Foundry Photonics Platform
title_short Heterogeneous Integration of Solid-State Quantum Systems with a Foundry Photonics Platform
title_sort heterogeneous integration of solid-state quantum systems with a foundry photonics platform
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10515700/
https://www.ncbi.nlm.nih.gov/pubmed/37743942
http://dx.doi.org/10.1021/acsphotonics.3c00713
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