Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Quantum 2.0 Conference and Exhibition

An Integrated and Fiber-Coupled Interface with Tin-Vacancy Centres in Diamond Waveguides

Matteo Pasini, Nina Codreanu, Adrià Riera Moral, Lorenzo De Santis, Hans K. C. Beukers, Christopher Waas, Julia M. Brevoord, Johannes Borregaard, Ronald Hanson

Published Jan 1, 2023• 0 citations
Publisher

Abstract

We integrate tin-vacancy colour centres in diamond nanophotonic waveguides with a fiber-based coupling interface. From spectroscopic investigation we find narrow in-homogeneous distribution, almost transform-limited optical transitions and low spectral diffusion.
DOI
10.1364/quantum.2023.qm4a.4

Related papers

Tin-vacancy centres in diamond for an integrated and efficient spin-photon interface

Matteo Pasini, Hans K. C. Beukers, Christopher Waas +7 more

We fabricate single tin-vacancy centres in diamond, we perform spectroscopy and coherent population trapping to verify optical driving of the spin states. We investigate the integration in diamond waveguides to realise an efficient spin-photon interface.

Quantum 2.0 Conference and Exhibition•Jan 1, 2022•0 citations

Quantum Photonic Interface for Tin-Vacancy Centers in Diamond

Alison E. Rugar, Shahriar Aghaeimeibodi, Daniel Riedel +6 more

The realization of quantum networks critically depends on establishing efficient, coherent light-matter interfaces. Optically active spins in diamond have emerged as promising quantum nodes based on their spin-selective optical transitions, long-lived spin ground states, and potential for integration with nanophotonics. Tin-vacancy (SnV$^{\,\textrm{-}}$) centers in diamond are of particular interest because they exhibit narrow-linewidth emission in nanostructures and possess long spin coherence times at temperatures above 1 K. However, a nanophotonic interface for SnV$^{\,\textrm{-}}$ centers has not yet been realized. Here, we report cavity enhancement of the emission of SnV$^{\,\textrm{-}}$ centers in diamond. We integrate SnV$^{\,\textrm{-}}$ centers into one-dimensional photonic crystal resonators and observe a 40-fold increase in emission intensity. The Purcell factor of the coupled system is 25, resulting in channeling of the majority of photons ($90\%$) into the cavity mode. Our results pave the way for the creation of efficient, scalable spin-photon interfaces based on SnV$^{\,\textrm{-}}$ centers in diamond.

arXiv:2102.11852•Physical Review X•Jul 26, 2021•103 citations

Quantum Control and Waveguide Integration of Diamond Tin-Vacancy Spin Qubits

Hans K. C. Beukers, Christopher Waas, Matteo Pasini +4 more

We show coupling of an SnV center to a diamond waveguide of 20% with almost transform-limited optical transitions. Besides, we show control over the SnV spin qubit and extend its coherence to over a millisecond.

Quantum 2.0 Conference and Exhibition•Jan 1, 2024•1 citation

Fiber-Coupled Diamond Quantum Nanophotonic Interface

Michael J. Burek, Charles Meuwly, Ruffin E. Evans +10 more

The authors demonstrate on-chip diamond nanophotonics with a high-efficiency fiber-optic interface, achieving >90% power coupling at visible wavelengths. They use this approach to create a bright source of narrowband single photons, based on a silicon-vacancy color center embedded in a waveguide-coupled diamond photonic-crystal cavity. Their quantum nanophotonic interface yields a high flux of coherent single photons into a single-mode fiber, enabling possibilities for quantum networks that couple multiple emitters, either on the same chip or separated by long distances.

arXiv:1612.05285•Physical Review Applied•Aug 25, 2017•171 citations

A nanophotonic interface for tin-vacancy centers in diamond

Daniel Riedel, Alison E. Rugar, Shahriar Aghaeimeibodi +6 more

We present the coupling of tin-vacancy centers in diamond to a photonic crystal cavity resulting in a more than 10-fold enhancement of the spontaneous radiative recombination rate.

Conference on Lasers and Electro-Optics•Jan 1, 2022•0 citations

Narrow-linewidth tin-vacancy centers in diamond waveguides

Alison E. Rugar, Shahriar Aghaeimeibodi, Constantin Dory +7 more

We have fabricated waveguides containing tin-vacancy centers in diamond, promising optically accessible spin qubit candidates. The tin-vacancy centers in waveguides display narrow linewidths of ~ 36 MHz.

Conference on Lasers and Electro-Optics•Jan 1, 2021•0 citations
The realization of quantum networks critically depends on establishing efficient, coherent light-matter interfaces. Optically active spins in diamond have emerged as promising quantum nodes based on their spin-selective optical transitions, long-lived spin ground states, and potential for integration with nanophotonics. Tin-vacancy (SnV -^{\,\textrm{-}}-) centers in diamond are of particular interest because they exhibit narrow-linewidth emission in nanostructures and possess long spin coherence times at temperatures above 1 K. However, a nanophotonic interface for SnV -^{\,\textrm{-}}- centers has not yet been realized. Here, we report cavity enhancement of the emission of SnV -^{\,\textrm{-}}- centers in diamond. We integrate SnV -^{\,\textrm{-}}- centers into one-dimensional photonic crystal resonators and observe a 40-fold increase in emission intensity. The Purcell factor of the coupled system is 25, resulting in channeling of the majority of photons (90%90\%90%) into the cavity mode. Our results pave the way for the creation of efficient, scalable spin-photon interfaces based on SnV -^{\,\textrm{-}}- centers in diamond.
The authors demonstrate on-chip diamond nanophotonics with a high-efficiency fiber-optic interface, achieving >90% power coupling at visible wavelengths. They use this approach to create a bright source of narrowband single photons, based on a silicon-vacancy color center embedded in a waveguide-coupled diamond photonic-crystal cavity. Their quantum nanophotonic interface yields a high flux of coherent single photons into a single-mode fiber, enabling possibilities for quantum networks that couple multiple emitters, either on the same chip or separated by long distances.