Zobrazeno 1 - 10
of 285
pro vyhledávání: '"Hitoshi SUMIYA"'
Autor:
Rémi Blinder, Yuliya Mindarava, Thai Hien Tran, Ali Momenzadeh, Sen Yang, Petr Siyushev, Hitoshi Sumiya, Kenji Tamasaku, Taito Osaka, Norio Morishita, Haruki Takizawa, Shinobu Onoda, Hideyuki Hara, Fedor Jelezko, Jörg Wrachtrup, Junichi Isoya
Publikováno v:
Communications Materials, Vol 5, Iss 1, Pp 1-10 (2024)
Abstract With their optical addressability of individual spins and long coherence time, nitrogen-vacancy (NV) centers in diamond are often called “atom-like solid spin-defects”. As observed with trapped atomic ions, quantum interference mediated
Externí odkaz:
https://doaj.org/article/51f1bc3016f44090b3d4b38ce96de68a
Autor:
Jonas Meinel, MinSik Kwon, Rouven Maier, Durga Dasari, Hitoshi Sumiya, Shinobu Onoda, Junichi Isoya, Vadim Vorobyov, Jörg Wrachtrup
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-7 (2023)
Abstract Nitrogen vacancy (NV) centers are a major platform for the detection of nuclear magnetic resonance (NMR) signals at the nanoscale. To overcome the intrinsic electron spin lifetime limit in spectral resolution, a heterodyne detection approach
Externí odkaz:
https://doaj.org/article/8ee7880f1c8e447789af6d6e13e3da56
Publikováno v:
Mechanical Engineering Journal, Vol 11, Iss 1, Pp 23-00427-23-00427 (2024)
Dry etching with oxygen plasma was performed on a single-point cutting tool composed of nano-polycrystalline diamond to elucidate the shapeable cutting-edge radius (CER). The tool's CER was measured using an atomic force microscope employing a cantil
Externí odkaz:
https://doaj.org/article/55518fff699b43ae9fa9797d7cd2f6a5
Autor:
Jonas Meinel, Vadim Vorobyov, Ping Wang, Boris Yavkin, Mathias Pfender, Hitoshi Sumiya, Shinobu Onoda, Junichi Isoya, Ren-Bao Liu, J. Wrachtrup
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Signals that look the same from their low-order correlations can often be distinguished by looking at higher-order ones. Here, the authors exploit the sensitivity of quantum nonlinear spectroscopy to fourth-order correlations to identify Gaussian noi
Externí odkaz:
https://doaj.org/article/7b08a9e6a2ff42f597fd4bad702a0c9d
Autor:
Chen Zhang, Durga Dasari, Matthias Widmann, Jonas Meinel, Vadim Vorobyov, Polina Kapitanova, Elizaveta Nenasheva, Kazuo Nakamura, Hitoshi Sumiya, Shinobu Onoda, Junichi Isoya, Jörg Wrachtrup
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-10 (2022)
High sensitivity in quantum sensing comes often at the expense of other figures of merit, usually resulting in distortion. Here, the authors propose a protocol with good sensitivity, readout linearity and high frequency resolution, and benchmark it t
Externí odkaz:
https://doaj.org/article/33f7839d86b34a6caf47f04cf582aa2e
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 89, Iss 918, Pp 22-00276-22-00276 (2023)
An experiment was conducted to proove that a single-point cutting tool made of nano-polycrystalline diamond with a cutting edge radius of 0.3 nm can fabricate a cut face without damaged layer by decreasing the depth of cut. A face turning test of oxy
Externí odkaz:
https://doaj.org/article/c7cac74d8e644daeb44bbce204fa00cf
Autor:
Yusuke Kubo, Naoki Ishimatsu, Naoto Kitamura, Naomi Kawamura, Sho Kakizawa, Masaichiro Mizumaki, Ryuichi Nomura, Tetsuo Irifune, Hitoshi Sumiya
Publikováno v:
Frontiers in Materials, Vol 9 (2022)
Reverse Monte Carlo (RMC) calculation was performed to visualize the atomic arrangement in a disordered Fe55Ni45 alloy, which is classified as an intermediate structure between the non-crystalline glass and crystalline structures. The optimized struc
Externí odkaz:
https://doaj.org/article/303a29720784414a8412650f09ded13b
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 88, Iss 912, Pp 22-00159-22-00159 (2022)
A research project was conducted to develop a grinding tool made of nano-polycrystalline diamond adaptable to fabricating a microdimple array (MDA) mold composed of a huge number of microdimples with a diameter of 30 μm, zero flattening, and a surfa
Externí odkaz:
https://doaj.org/article/df768e54a4da49e1af8967c8ffc2e5af
Autor:
Jonas Meinel, Vadim Vorobyov, Boris Yavkin, Durga Dasari, Hitoshi Sumiya, Shinobu Onoda, Junichi Isoya, Jörg Wrachtrup
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
High-resolution microwave detection with NV centers in diamond is currently applicable to signals with frequencies below 10 MHz, thus limiting their range of applications. Here, the authors demonstrate detection of GHz signals with sub-Hz spectral re
Externí odkaz:
https://doaj.org/article/54afd890387d433da1f5e744cec15a23
Autor:
Thomas Wolf, Philipp Neumann, Kazuo Nakamura, Hitoshi Sumiya, Takeshi Ohshima, Junichi Isoya, Jörg Wrachtrup
Publikováno v:
Physical Review X, Vol 13, Iss 2, p 029903 (2023)
Externí odkaz:
https://doaj.org/article/4fd6419a6ae64fd4b5c42612a373353f