Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Jocelyn Achard"'
Autor:
Nikolaj Winther Hansen, James Luke Webb, Luca Troise, Christoffer Olsson, Leo Tomasevic, Ovidiu Brinza, Jocelyn Achard, Robert Staacke, Michael Kieschnick, Jan Meijer, Axel Thielscher, Hartwig Roman Siebner, Kirstine Berg-Sørensen, Jean-François Perrier, Alexander Huck, Ulrik Lund Andersen
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract Quantum sensors using solid state qubits have demonstrated outstanding sensitivity, beyond that possible using classical devices. In particular, those based on colour centres in diamond have demonstrated high sensitivity to magnetic field th
Externí odkaz:
https://doaj.org/article/9dfcb4ac16bf4a0da1d552f7a858ea5c
Autor:
James Luke Webb, Luca Troise, Nikolaj Winther Hansen, Christoffer Olsson, Adam M. Wojciechowski, Jocelyn Achard, Ovidiu Brinza, Robert Staacke, Michael Kieschnick, Jan Meijer, Axel Thielscher, Jean-François Perrier, Kirstine Berg-Sørensen, Alexander Huck, Ulrik Lund Andersen
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Abstract The ability to perform noninvasive and non-contact measurements of electric signals produced by action potentials is essential in biomedicine. A key method to do this is to remotely sense signals by the magnetic field they induce. Existing m
Externí odkaz:
https://doaj.org/article/b61eb32e88824523ba1816647575042e
Autor:
James L. Webb, Luca Troise, Nikolaj W. Hansen, Jocelyn Achard, Ovidiu Brinza, Robert Staacke, Michael Kieschnick, Jan Meijer, Jean-François Perrier, Kirstine Berg-Sørensen, Alexander Huck, Ulrik Lund Andersen
Publikováno v:
Frontiers in Physics, Vol 8 (2020)
Sensing of signals from biological processes, such as action potential propagation in nerves, are essential for clinical diagnosis and basic understanding of physiology. Sensing can be performed electrically by placing sensor probes near or inside a
Externí odkaz:
https://doaj.org/article/da9d2d89b34f4eecb4c7104ab2c23f6b
Autor:
Gilles Cartry, Dmitry Kogut, Kostiantyn Achkasov, Jean-Marc Layet, Thomas Farley, Alix Gicquel, Jocelyn Achard, Ovidiu Brinza, Thomas Bieber, Hocine Khemliche, Philippe Roncin, Alain Simonin
Publikováno v:
New Journal of Physics, Vol 19, Iss 2, p 025010 (2017)
This paper deals with a study of H ^− /D ^− negative ion surface production on diamond in low pressure H _2 /D _2 plasmas. A sample placed in the plasma is negatively biased with respect to plasma potential. Upon positive ion impacts on the sampl
Externí odkaz:
https://doaj.org/article/f870e08afdd640ee92d8c7a372520d70
Autor:
Midrel Wilfried Ngandeu Ngambou, Pauline Perrin, Ionut Balasa, Ovidiu Brinza, Audrey Valentin, Vianney Mille, Fabien Bénédic, Philippe Goldner, Alexandre Tallaire, Jocelyn Achard
The negatively charged nitrogen-vacancy centre (so-called NV-centre) in diamond is one of the most promising systems for applications in quantum technologies because of the possibility to optically manipulate and read out the spin state of this defec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d947a7bcaa827e3a14910f9b75addd1
https://zenodo.org/record/7813585
https://zenodo.org/record/7813585
Autor:
Baptiste Vindolet, Marie-Pierre Adam, Loïc Toraille, Mayeul Chipaux, Antoine Hilberer, Géraud Dupuy, Lukas Razinkovas, Audrius Alkauskas, Gergő Thiering, Adam Gali, Mary De Feudis, Midrel Wilfried Ngandeu Ngambou, Jocelyn Achard, Alexandre Tallaire, Martin Schmidt, Christoph Becher, Jean-François Roch
We investigate the optical properties of silicon-vacancy (SiV) and germanium-vacancy (GeV) color centers in nanodiamonds under hydrostatic pressure up to 180 GPa. The nanodiamonds were synthetized by Si or Ge-doped plasma assisted chemical vapor depo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::398e0b97b9958c486fca8f6582b3ba35
http://arxiv.org/abs/2209.09792
http://arxiv.org/abs/2209.09792
Publikováno v:
Coatings; Volume 12; Issue 10; Pages: 1375
Diamond is a material of choice for the fabrication of optical windows and for protective and anti-reflecting coatings for optical materials. For these kinds of applications, the diamond coating must have a high purity and a low surface roughness to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::688dd72d2b9e877e20be33a933107ec3
Autor:
Priyadharshini Balasubramanian, Christian Osterkamp, Ovidiu Brinza, Maxime Rollo, Isabelle Robert-Philip, Philippe Goldner, Vincent Jacques, Fedor Jelezko, Jocelyn Achard, Alexandre Tallaire
Publikováno v:
Carbon
Carbon, 2022, 194, pp.282-289. ⟨10.1016/j.carbon.2022.04.005⟩
Carbon, 2022, 194, pp.282-289. ⟨10.1016/j.carbon.2022.04.005⟩
International audience; In this work we investigate the properties of negatively charged nitrogen-vacancy (NV À) centres created during single crystal diamond growth by chemical vapour deposition (CVD) on [113]-oriented substrates and with N 2 O as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5404c4243acf3a59cbc8d2c4d842cabd
https://hal.science/hal-03865721
https://hal.science/hal-03865721
Autor:
Midrel Wilfried Ngandeu Ngambou, Clément Pellet-Mary, Ovidiu Brinza, Alessi Antonino, Gabriel Hetet, Alexandre Tallaire, Fabien Bénédic, Jocelyn Achard
Publikováno v:
Diamond and Related Materials
Diamond and Related Materials, 2022, 123, pp.108884. ⟨10.1016/j.diamond.2022.108884⟩
Diamond and Related Materials, 2022, 123, pp.108884. ⟨10.1016/j.diamond.2022.108884⟩
International audience; Nitrogen-vacancy (NV) centres in diamond are point-like defects that have attracted a lot of attention as promising candidates for quantum technologies particularly for sensing and imaging nanoscale magnetic fields. For this a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3be3bf18f744907a6b14e9eaef3c2e65
https://hal.science/hal-03575025/file/Midrel_Ngandeu_ICDCM_2021_paper_version_Hal.pdf
https://hal.science/hal-03575025/file/Midrel_Ngandeu_ICDCM_2021_paper_version_Hal.pdf
Autor:
Luca Troise, James Webb, Nikolaj Winther Hansen, Christoffer Olsson, Teresa Klara Pfau, Leo Tomasevic, Ovidiu Brinza, Jocelyn Achard, Robert Staacke, Michael Kieschnick, Jan Meijer, Axel Thielscher, Hartwig Roman Siebner, Jean-Francois Perrier, Kirstine Berg-Sørensen, Alexander Huck, Ulrik Lund Andersen
Publikováno v:
Optical Sensors and Sensing Congress 2022 (AIS, LACSEA, Sensors, ES).
We report the first magnetic measurements of electrical activity from in vitro mammalian muscle and brain tissue. By using Nitrogen-Vacancy centers in diamond, these measurements can be carried out non-invasively and in an unshielded laboratory.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd636a262f2e85b09ecbe2d68cad6a3b
https://doi.org/10.1364/sensors.2022.sm4c.2
https://doi.org/10.1364/sensors.2022.sm4c.2