Recent Advances in Single Crystal Diamond Device Fabrication for Photonics, Sensing and Nanomechanics

Rani, Dipti; Opaluch, Oliver; Neu, Elke

doi:10.3390/mi12010036

“…However, the large refractive index of diamond (n = 2.4) leads to total internal reflection at the diamondair interface, limiting the detection efficiency to only a few % for color centers in bulk diamond when using a high numerical aperture microscope [234]. To remedy this problem and improve the photon flux, a variety of different micro-and nano-photonic devices have been fabricated on diamond [235].…”

Section: Multimode Optomechanicsmentioning

confidence: 99%

Diamond Integrated Quantum Nanophotonics: Spins, Photons and Phonons

Shandilya

¹

,

Flågan

²

,

Carvalho

³

et al. 2022

J. Lightwave Technol.

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Integrated quantum photonics devices in diamond have tremendous potential for many quantum applications, including long-distance quantum communication, quantum information processing, and quantum sensing. These devices benefit from diamond's combination of exceptional thermal, optical, and mechanical properties. Its wide electronic bandgap makes diamond an ideal host for a variety of optical active spin qubits that are key building blocks for quantum technologies. In landmark experiments, diamond spin qubits have enabled demonstrations of remote entanglement, memory-enhanced quantum communication, and multi-qubit spin registers with fault-tolerant quantum error correction, leading to the realization of multinode quantum networks. These advancements put diamond at the forefront of solid-state material platforms for quantum information processing. Recent developments in diamond nanofabrication techniques provide a promising route to further scaling of these landmark experiments towards real-life quantum technologies. In this paper, we focus on the recent progress in creating integrated diamond quantum photonic devices, with particular emphasis on spin-photon interfaces, cavity optomechanical devices, and spin-phonon transduction. Finally, we discuss prospects and remaining challenges for the use of diamond in scalable quantum technologies.

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“…However, the large refractive index of diamond (n = 2.4) leads to total internal reflection at the diamondair interface, limiting the detection efficiency to only a few % for color centers in bulk diamond when using a high numerical aperture microscope [286]. To remedy this problem and improve the photon flux, a variety of different micro-and nano-photonic devices have been fabricated on diamond [287].…”

Section: Quantum Photonic Devicesmentioning

confidence: 99%

Diamond Integrated Quantum Photonics: A Review

Shandilya,

Flågan,

Carvalho

et al. 2022

Preprint

0

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Integrated quantum photonics devices in diamond have tremendous potential for many quantum applications, including long-distance quantum communication, quantum information processing, and quantum sensing. These devices benefit from diamond's combination of exceptional thermal, optical, and mechanical properties. Its wide electronic bandgap makes diamond an ideal host for a variety of optical active spin qubits that are key building blocks for quantum technologies. In landmark experiments, diamond spin qubits have enabled demonstrations of remote entanglement, memory-enhanced quantum communication, and multi-qubit spin registers with fault-tolerant quantum error correction, leading to the realization of multinode quantum networks. These advancements put diamond at the forefront of solid-state material platforms for quantum information processing. Recent developments in diamond nanofabrication techniques provide a promising route to further scaling of these landmark experiments towards real-life quantum technologies. In this paper, we focus on the recent progress in creating integrated diamond quantum photonic devices, with particular emphasis on spin-photon interfaces, cavity optomechanical devices, and spin-phonon transduction. Finally, we discuss prospects and remaining challenges for the use of diamond in scalable quantum technologies.

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“…As discussed previously, thanks to the development of CVD grown diamonds and implantation techniques, it is possible to finely control the purity, and the number of hosted NV − centers in the diamond. Over the last decades, nano and micro-fabrication of diamond has enabled the realization of increasingly complex diamond structures [100]. Pillars of a controlled aspect-ratio can be nano-fabricated, and even more advanced structures are achievable using reactive ion etching technics.…”

Section: Control Of Diamond Shape and Propertiesmentioning

confidence: 99%

Spin-Mechanics with Nitrogen-Vacancy Centers and Trapped Particles

Pellet-Mary

¹

,

Huillery

²

,

Rondin

³

et al. 2021

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Controlling the motion of macroscopic oscillators in the quantum regime has been the subject of intense research in recent decades. In this direction, opto-mechanical systems, where the motion of micro-objects is strongly coupled with laser light radiation pressure, have had tremendous success. In particular, the motion of levitating objects can be manipulated at the quantum level thanks to their very high isolation from the environment under ultra-low vacuum conditions. To enter the quantum regime, schemes using single long-lived atomic spins, such as the electronic spin of nitrogen-vacancy (NV) centers in diamond, coupled with levitating mechanical oscillators have been proposed. At the single spin level, they offer the formidable prospect of transferring the spins’ inherent quantum nature to the oscillators, with foreseeable far-reaching implications in quantum sensing and tests of quantum mechanics. Adding the spin degrees of freedom to the experimentalists’ toolbox would enable access to a very rich playground at the crossroads between condensed matter and atomic physics. We review recent experimental work in the field of spin-mechanics that employ the interaction between trapped particles and electronic spins in the solid state and discuss the challenges ahead. Our focus is on the theoretical background close to the current experiments, as well as on the experimental limits, that, once overcome, will enable these systems to unleash their full potential.

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Recent Advances in Single Crystal Diamond Device Fabrication for Photonics, Sensing and Nanomechanics

Cited by 13 publications

References 77 publications

Diamond Integrated Quantum Nanophotonics: Spins, Photons and Phonons

Diamond Integrated Quantum Nanophotonics: Spins, Photons and Phonons

Diamond Integrated Quantum Photonics: A Review

Spin-Mechanics with Nitrogen-Vacancy Centers and Trapped Particles

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