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

Development of a Diamond Platform for Quantum Sensing

Giulio Coccia, Sajedeh Shahbazi, Y. Guo, Vinaya K. Kavatamane, Alexander Kubanek, Anthony J. Bennett, John Patrick Hadden, Paul E. Barclay, Roberta Ramponi, Shane Michael Eaton

Published Jan 1, 2023• 0 citations
Publisher

Abstract

We present two novel diamond based room-temperature quantum sensors: the first is achieved through a hybrid method of ion implantation and femtosecond laser fabrication, while the second relies on a single step of laser writing.
DOI
10.1364/quantum.2023.qth2a.28

Related papers

Laser fabrication and ion implantation of quantum emitters in diamond

Shane Michael Eaton, Argyro N. Giakoumaki, Vibhav Bharadwaj +8 more

Femtosecond laser writing shows great potential for novel 3D photonic architectures and high quality NV- quantum emitters in the bulk of diamond. However, the direct writing method cannot achieve nanometric placement of NV- centers near the surface of diamond, which is required for certain quantum sensing tasks. We will demonstrate a hybrid approach where the advantages of 3D optical waveguides by femtosecond laser writing and precise and shallow placement of NV- centers by ion implantation will be combined to form an integrated quantum sensor with record high performance.

Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications•Apr 1, 2022•0 citations

Ultrafast laser writing tool kit for quantum technologies

Giulio Coccia, Sajedeh Shahbazi, Akhil Kuriakose +13 more

The possibility to develop room-temperature quantum sensors by focusing ultrashort laser pulses inside the bulk of diamond is introduced. A systematic study of the laser fabrication parameters is presented, leading to the enhanced sensitivity of quantum sensing devices in diamond.

Ultrafast Optics (UFO)•Jan 1, 2023•0 citations

Laser and Ion Beam Writing for Quantum Photonic Sensors in Diamond

Ottavia Jedrkiewicz, Vibhav Bharadwaj, A. Kuriakose +5 more

Ultrafast laser writing and Ion beam writing have emerged as valuable techniques for fabricating building-blocks of photonic and sensing diamond platforms. These techniques can be used to form quantum emitters, waveguides, microchannels and conductive microwires.

•Jan 1, 2025•0 citations

Quantum Computing in Diamond

Steven Prawer

The aim of this proposal is to demonstrate the key elements needed to construct a logical qubit in diamond by exploiting the remarkable quantum properties of the nitrogen-vacancy (NV) optical centre. Specifically, the focus of the work was to address the materials and fabrication issues. We have demonstrated (i) that individual NV qubits can be fabricated by ion implantation with long coherence times (>350 microseconds at room temperature), (ii) electrical control of the optical output of each individual centre is achievable via the Stark shift, (iii) coherent population trapping of ensembles and single NV centres allowing for all-optical control of qubit operations and (iv) that waveguides, cavities and photonic band-gap structures can be fabricated in single crystal diamond. We have thus demonstrated a nanofabrication tool-kit for diamond which is sufficiently robust and mature to justify future investment in the design and implementation of a scalable quantum computing architecture for diamond.

•May 28, 2007•0 citations

Quantum Micro–Nano Devices Fabricated in Diamond by Femtosecond Laser and Ion Irradiation

Shane Michael Eaton, John Patrick Hadden, Vibhav Bharadwaj +12 more

Abstract Diamond has attracted great interest as a quantum technology platform thanks to its optically active nitrogen vacancy (NV) center. The NV's ground state spin can be read out optically, exhibiting long spin coherence times of ≈1 ms even at ambient temperatures. In addition, the energy levels of the NV are sensitive to external fields. These properties make NVs attractive as a scalable platform for efficient nanoscale resolution sensing based on electron spins and for quantum information systems. Diamond photonics enhance optical interactions with NVs, beneficial for both quantum sensing and information. Diamond is also compelling for microfluidic applications due to its outstanding biocompatibility, with sensing functionality provided by NVs. However, it remains a significant challenge to fabricate photonics, NVs, and microfluidics in diamond. In this Progress Report, an overview is provided of ion irradiation and femtosecond laser writing, two promising fabrication methods for diamond‐based quantum technological devices. The unique capabilities of both techniques are described, and the most important fabrication results of color center, optical waveguide, and microfluidics in diamond are reported, with an emphasis on integrated devices aiming toward high performance quantum sensors and quantum information systems of tomorrow.

arXiv:2004.07460•Advanced Quantum Technologies•May 20, 2019•55 citations

Quantum micro–nanodevices fabricated in diamond by femtosecond laser and ion irradiation

Yanzhao Guo, Elena Nieto Hernández, Akhil Kuriakose +21 more

Elsevier eBooks•Jan 1, 2025•0 citations
Femtosecond laser writing shows great potential for novel 3D photonic architectures and high quality NV- quantum emitters in the bulk of diamond. However, the direct writing method cannot achieve nanometric placement of NV- centers near the surface of diamond, which is required for certain quantum sensing tasks. We will demonstrate a hybrid approach where the advantages of 3D optical waveguides by femtosecond laser writing and precise and shallow placement of NV- centers by ion implantation will be combined to form an integrated quantum sensor with record high performance.
The aim of this proposal is to demonstrate the key elements needed to construct a logical qubit in diamond by exploiting the remarkable quantum properties of the nitrogen-vacancy (NV) optical centre. Specifically, the focus of the work was to address the materials and fabrication issues. We have demonstrated (i) that individual NV qubits can be fabricated by ion implantation with long coherence times (>350 microseconds at room temperature), (ii) electrical control of the optical output of each individual centre is achievable via the Stark shift, (iii) coherent population trapping of ensembles and single NV centres allowing for all-optical control of qubit operations and (iv) that waveguides, cavities and photonic band-gap structures can be fabricated in single crystal diamond. We have thus demonstrated a nanofabrication tool-kit for diamond which is sufficiently robust and mature to justify future investment in the design and implementation of a scalable quantum computing architecture for diamond.
Abstract Diamond has attracted great interest as a quantum technology platform thanks to its optically active nitrogen vacancy (NV) center. The NV's ground state spin can be read out optically, exhibiting long spin coherence times of ≈1 ms even at ambient temperatures. In addition, the energy levels of the NV are sensitive to external fields. These properties make NVs attractive as a scalable platform for efficient nanoscale resolution sensing based on electron spins and for quantum information systems. Diamond photonics enhance optical interactions with NVs, beneficial for both quantum sensing and information. Diamond is also compelling for microfluidic applications due to its outstanding biocompatibility, with sensing functionality provided by NVs. However, it remains a significant challenge to fabricate photonics, NVs, and microfluidics in diamond. In this Progress Report, an overview is provided of ion irradiation and femtosecond laser writing, two promising fabrication methods for diamond‐based quantum technological devices. The unique capabilities of both techniques are described, and the most important fabrication results of color center, optical waveguide, and microfluidics in diamond are reported, with an emphasis on integrated devices aiming toward high performance quantum sensors and quantum information systems of tomorrow.