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

Guo, Yanzhao, Nieto Hernández, Elena, Kuriakose, Akhil, Alam, Mohammad Sahnawaz, Coccia, Giulio, Britel, Adam, Kavatamane, Vinaya K., Shahbazi, Sajedeh, Sachero, Selene, Kafizova, Diana, Ramponi, Roberta, McMillan, Alex, Forneris, Jacopo, Picollo, Federico, Gawełczyk, Michał, Wigger, Daniel, Machnikowski, Paweł, Hadden, John P. ORCID: https://orcid.org/0000-0001-5407-6754, Barclay, Paul E., Jedrkiewicz, Ottavia, Kubanek, Alexander, Bennett, Anthony J. ORCID: https://orcid.org/0000-0002-5386-3710, Olivero, Paolo and Eaton, Shane M. 2025. Quantum micro–nanodevices fabricated in diamond by femtosecond laser and ion irradiation. Agio, Mario and Castelletto, Stefania, eds. Nanophotonics with Diamond and Silicon Carbide for Quantum Technologies, Elsevier, pp. 47-75. (10.1016/B978-0-443-13717-4.00004-9)

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Abstract

Diamond has attracted great interest as a quantum technology platform due to its optically active quantum emitters such as the negatively charged nitrogen-vacancy center. The nitrogen vacancy’s ground state spin can be read out optically, with long millisecond spin coherence times at ambient temperatures. In addition, the energy levels of the nitrogen vacancy are sensitive to external fields. These properties make nitrogen vacancies 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 nitrogen vacancies, beneficial for both quantum sensing and information. However, several useful building blocks for diamond quantum devices have been demonstrated, namely, photonics, quantum emitters, and micrographitic wires. In this chapter, 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 quantum emitters, photonics, microfluidics, and microwires in diamond are reported, with an emphasis on integrated devices aiming toward high-performance quantum sensors and quantum information systems.

Item Type:	Book Section
Date Type:	Published Online
Status:	Published
Schools:	Schools > Engineering
Publisher:	Elsevier
ISBN:	9780443137174
Last Modified:	06 Aug 2025 21:19
URI:	https://orca.cardiff.ac.uk/id/eprint/180071

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