Search Results - "ACHARD, Jocelyn"
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Detection of biological signals from a live mammalian muscle using an early stage diamond quantum sensor
Published in Scientific reports (28-01-2021)“…The ability to perform noninvasive and non-contact measurements of electric signals produced by action potentials is essential in biomedicine. A key method to…”
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2
Reduction of Dislocations in Single Crystal Diamond by Lateral Growth over a Macroscopic Hole
Published in Advanced materials (Weinheim) (01-04-2017)“…A low‐dislocation diamond is obtained by homoepitaxial chemical vapor deposition on a standard moderate‐quality substrate hollowed out by a large square hole…”
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3
Photonic nano-structures on (111)-oriented diamond
Published in Applied physics letters (14-04-2014)“…We demonstrate the fabrication of single-crystalline diamond nanopillars on a (111)-oriented chemical vapor deposited diamond substrate. This crystal…”
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4
Ultralong spin coherence time in isotopically engineered diamond
Published in Nature materials (01-05-2009)“…As quantum mechanics ventures into the world of applications and engineering, materials science faces the necessity to design matter to quantum grade purity…”
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5
Initialization and Readout of Nuclear Spins via a Negatively Charged Silicon-Vacancy Center in Diamond
Published in Physical review letters (17-05-2019)“…In this Letter, we demonstrate initialization and readout of nuclear spins via a negatively charged silicon-vacancy (SiV) electron spin qubit. Under…”
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6
Identification of Dislocations in Synthetic Chemically Vapor Deposited Diamond Single Crystals
Published in Crystal growth & design (04-05-2016)“…High purity chemically vapor deposited (CVD) diamond single crystals are now widely available. However, the reduction of dislocations in this material still…”
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7
Hot ion implantation to create dense NV center ensembles in diamond
Published in Applied physics letters (25-03-2024)“…Creating dense and shallow nitrogen-vacancy (NV) ensembles with good spin properties is a prerequisite for developing diamond-based quantum sensors exhibiting…”
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Alternative solutions to caesium in negative-ion sources: a study of negative-ion surface production on diamond in H2/D2 plasmas
Published in New journal of physics (23-02-2017)“…This paper deals with a study of H−/D− negative ion surface production on diamond in low pressure H2/D2 plasmas. A sample placed in the plasma is negatively…”
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Defect and Threading Dislocations in Single Crystal Diamond: A Focus on Boron and Nitrogen Codoping
Published in Physica status solidi. A, Applications and materials science (01-11-2019)“…For the fabrication of vertical power electronic components, the use of a freestanding highly boron‐doped single crystal diamond substrate is mandatory, on top…”
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10
Microscopic-scale magnetic recording of brain neuronal electrical activity using a diamond quantum sensor
Published in Scientific reports (31-07-2023)“…Quantum sensors using solid state qubits have demonstrated outstanding sensitivity, beyond that possible using classical devices. In particular, those based on…”
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Investigation of Nucleation and Growth of Nanocrystalline Diamond Films Deposited at Low Temperature Using In Situ Laser Reflectance Interferometry
Published in Physica status solidi. A, Applications and materials science (01-11-2017)“…The nucleation and growth of nanocrystalline diamond (NCD) films deposited at low temperature on silicon substrates with a distributed antenna array (DAA)…”
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Epitaxy of iridium on SrTiO3/Si (001): A promising scalable substrate for diamond heteroepitaxy
Published in Diamond and related materials (01-06-2016)“…Iridium epitaxy on SrTiO3/Si (001) was investigated using field emission scanning electron microscopy (FE-SEM), spectroscopic ellipsometry, X-ray diffraction…”
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13
Enhanced generation of single optically active spins in diamond by ion implantation
Published in Applied physics letters (19-04-2010)“…The nitrogen-vacancy (NV) centers in diamond are amongst the most promising candidates for quantum information applications. Up to now the creation of such…”
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14
Optimization of a Diamond Nitrogen Vacancy Centre Magnetometer for Sensing of Biological Signals
Published in Frontiers in physics (19-10-2020)“…Sensing of signals from biological processes, such as action potential propagation in nerves, are essential for clinical diagnosis and basic understanding of…”
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15
Growth strategy for controlling dislocation densities and crystal morphologies of single crystal diamond by using pyramidal-shape substrates
Published in Diamond and related materials (01-03-2013)“…The growth of millimetre-thick diamond single crystals by plasma assisted CVD is complicated by the formation of unepitaxial defects, particularly at the edges…”
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16
Effect of argon addition on the growth of thick single crystal diamond by high-power plasma CVD
Published in Physica status solidi. A, Applications and materials science (01-09-2011)“…Diamond films were synthesized with up to 50% argon in the gas phase using high power plasma‐assisted chemical vapour deposition (PACVD). This resulted in a…”
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The control of growth parameters in the synthesis of high-quality single crystalline diamond by CVD
Published in Journal of crystal growth (01-11-2005)“…This is a detailed study of the process parameters that control the synthesis of homoepitaxial single-crystal diamond by chemical vapour deposition (CVD) using…”
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Defect analysis and excitons diffusion in undoped homoepitaxial diamond films after polishing and oxygen plasma etching
Published in Diamond and related materials (01-10-2009)“…Several 65 μm thick epitaxial diamond films prepared on (100) Ib substrates by high power pulsed microwave plasma assisted chemical vapour deposition…”
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19
Dislocation imaging for electronics application crystal selection
Published in Physica status solidi. A, Applications and materials science (01-12-2007)“…High power electronics are today a real challenge for large band gap materials. Devices as simple as switches have to work at ever higher powers and demand…”
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20
3D kinetic Monte-Carlo simulations of diamond growth on (1 0 0) surfaces
Published in Diamond and related materials (01-03-2022)“…A 3D Kinetic Monte-Carlo (KMC) model is implemented and used to simulate the growth of (1 0 0)-oriented diamond films. The model considers four processes:…”
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