This research is supported by MEXT QLEAP (Quantum Leap Flagship Program).

Flagship Project:
Development of innovative sensor systems by highly sophisticated control of solid quantum sensors 
Basic Foundation Research:
Research on quantum sensing devices using quantum entangled photons 
Basic Foundation Research:
Establishment of earthquake early alert methods using highsensitivity gravity gradiometer 
Basic Foundation Research:
Development of photonnumberresolving quantum nanophotonics 
Basic Foundation Research:
Development of quantum atomic magnetometer with dual quantum noise squeezing 
Basic Foundation Research:
Development of Spectroscopic techniques based on cuttingedge quantum optics toward elucidating functions of complex molecular systems 
Basic Foundation Research:
Material science of complex defects for highlysensitive quantum sensors 
Basic Foundation Research:
Development of next generation highperformance inertial quantum sensors
Flagship Project (Development of innovative sensor systems by highly sophisticated control of solid quantum sensors)
Category  Date  Conferences  Authors  Titles  

1  2023/11  2023 MRS Fall Meeting  R. Katsumi, K. Takada, S. Naruse, K. Kawai, D. Sato, T. Hizawa, T. Yatsui  Pickflipandplace hybrid integration of a singlecrystal diamond nanobeam with an ensemble of nitrogenvacancy centers  
2  Keynote/Invited  2023/11  2023 International Workshop of Spin/Quantum Materials and Devices (IWSQMD 2023)  Y. Yamazaki, T. Tanaka, M. Kohda, T. Ohshima  Development of silicon vacancy based quantum sensor for direct measurement inside silicon carbide devices 
3  2023/11  QI2023/6th IFQMS  T. Tsuji, T. Sekiguchi, T. Iwasaki, M. Hatano  Increasing T2* of ensemble NV centers by reduction of stress distribution in CVD diamond film  
4  2023/11  QI2023/6th IFQMS  K. Ikeda, Y. Chen, P. Wang, Y. Miyamoto, T. Taniguchi, S. Onoda, M. Hatano, T. Iwasaki  Exploring Chargestate Dynamics of a TinVacancy Center in Diamond by TimeResolved Measurements  
5  2023/11  QI2023/6th IFQMS  K. Kajiyama, M. Haruyama, Y. Hatano, Y. Kainuma, H. Kato, M. Ogura, T. Makino, H. Noguchi, H. Abe, S. Onoda, T. Ohshima, M. Hatano, T. Iwasaki  Current monitoring for electric vehicle batteries using heteroepitaxial CVD diamond quantum sensors  
6  Keynote/Invited  2023/11  QI2023/6th IFQMS  N. Sekiguchi, M. Fushimi, A. Yoshimura, C. Shinei, M. Miyakawa, T. Taniguchi, T. Teraji, S. Onoda, T. Oshima, M. Hatano, M. Sekino, T. Iwasaki  Diamondbased magnetometer with dc sensitivity below 10 pT Hz^1/2 for magnetoencephalography 
7  2023/11  QI2023/6th IFQMS  Y. Kainuma, Y. Shigenobu, Y. Hatano, T. Shibata, H. Kato, S. Onoda, T. Ohshima, M. Hatano, T. Iwasaki  Highly sensitive compact quantum sensor head with NV center in angleshaped diamond  
8  2023/11  QI2023/6th IFQMS  K. Takeda, T. Tsuji, P. Wang, K. Oba, K. Ikeda, M. Hatano, T. Iwasaki  Charge State Control of TinVacancy Centers in Diamond Using Surface Termination  
9  2023/11  QI2023/6th IFQMS  Z. Li, I. Fujisaki, Y. Araki, Y. Hatano, T. Sekiguchi, T. Iwasak1, M. Hatano  Investigation on Sensitivity Parameters of Diamond Quantum Sensors Controlled by Continuously Excited Ramsey Protocol  
10  2023/11  QI2023/6th IFQMS  K. Oba, P. Wang, T. Taniguchi, M. Hatano, T. Iwasaki  Long spin relaxation time of a leadvacancy center in diamond  
11  2023/11  QI2023/6th IFQMS  A. Yoshimura, N. Sekiguch1, M. Fushim2, A. Kitad1, C. Shine3, M. Miyakaw3, T. Taniguchi, T. Teraji, H. Abe, S. Onoda, T. Ohshima, M. Hatano, M. Sekino, T. Iwasaki  Development of sensitive diamond quantum sensor for detecting the brain magnetic field of a living rat  
12  2023/11  QI2023/6th IFQMS  Y. Araki, I. Fujisaki, Z. Li, Y. Hatano, T. Sekiguchi, T. Iwasaki, M. Hatano  Continuously Excited Ramsey Simulation for High Sensitive Magnetometry  
13  2023/11  QI2023/6th IFQMS  A. Nakatsuka, R. Kitagawa, T. Kohashi, T. Tsuji, S. Nagata, H. Nitta, Y. Takamura, S. Nakagawa, T. Iwasaki, M. Hatano  Imaging AC magnetization response of soft magnetic thin film using diamond quantum sensors  
14  2023/11  QI2023/6th IFQMS  Y. Aoki, T. Sekiguchi, T. Shibata, T. Taniguchi, M. Miyakawa, C. Shinei, S. Onoda, S. Saiki, S. Ishii, T. Teraji, T. Ohshima, M. Hatano, T. Iwasaki  Effects of Optical Excitation on the Ramsey Magnetometry of Ensemble NV Centers in Diamond  
15  2023/11  QI2023/6th IFQMS  R. Kitagawa, T. Kohashi, T. Tsuji, S. Nagata, A. Nakatsuka, H. Nitta, Y. Takamura, S. Nakagawa, T. Iwasaki, M. Hatano  Widefield imaging of the magnetization process in soft magneticthin film using diamond quantum sensors  
16  2023/11  QI2023/6th IFQMS  M. Fujiwara, S. Inoue, S. Masuno, H. Fu, S. Tokita, M. Hashida, N. Mizuochi  Creation of NV centers in diamond over a wide region by singleshot femtosecond laser pulse  
17  2023/11  QI2023/6th IFQMS  R. Kawase, H. Kawashima, H. Kato, N. Tokuda, S. Yamasaki, M.asahiko Ogura, T. Makino, N. Mizuochi  Control of impurity incorporation into CVD diamond toward long coherence time of the NV center by optimizing pressure  
18  2023/11  QI2023/6th IFQMS  E. D. Herbschleb, S. Chigusa, R. Kawase, H. Kawashima, M. Hazumi, K. Nakayama, N. Mizuochi  Robust quantum sensing via the standard deviation  
19  2023/11  QI2023/6th IFQMS  E. D.1 Herbschleb, R. Kawase, H. Kawashima, H. Kato, T. Makino, S. Yamasaki, S. Onoda, K. Kimura, T. Ohshima, N. Mizuochi  Coupling nitrogen vacancy centres for sensitivity improvement  
20  2023/11  QI2023/6th IFQMS  R. Suzuki, T. Mikawa, R. Okaniwa, Y. Matsuzaki, N. Tokuda, J. IshiHayase  Analysis of electron spin double resonance spectra in diamond using Lindblad master equation  
21  2023/11  QI2023/6th IFQMS  T. Mikawa, M. Yuichiro, R. Okaniwa, T. N. Ikeda, N. Tokuda, J. Ishi Hayase  Electronspin double resonance in diamond under a strong RF field  
22  2023/11  QI2023/6th IFQMS  R. Okaniwa, T. Mikawa, Y. Matsuzaki, T. Yamaguchi, R. Suzuki, N. Tokuda, H. Watanabe, N. Mizuochi6,7,8, K. Sasaki9, K. Kobayashi9,10,11 and J. IshiHayase  CWODMRbased frequencytunable magnetometry utilizing RF doubledressed states with nitrogenvacancy centers in diamond  
23  2023/11  QI2023/6th IFQMS  Y. Nishi, Y. Oiso, M. Hatano, T. Amemiya, N. Nishiyama  Loss Reduction of SiN waveguide in green light for Diamond NV excitation  
24  2023/11  QI2023/6th IFQMS  T. Kohashi, M. Koguchi, T. Hashizume  Study of NVC probe fabricated by focused ion beam  
25  2023/11  QI2023/6th IFQMS  A. Kuwahata, Y. Murata, H. Tanaka, Y. Masuyama, K. Arai, R. Katsumi, T. Iwasaki, M. Hatano, R. Igarashi, T. Ohshima, F. Jelezko, T. Yatsui, M. Sekino  Development of diamond NV magnetometer with optical fiber array  
26  2023/11  QI2023/6th IFQMS  K. Takada, R. Katsumi, T. Yatsui  A diamond chiral waveguide structure for nanoscale magnetometry  
27  2023/11  SEST2023  S. Saiki, S. Ishii, H. Abe, S. Onoda, T. Ohshima  Study on NVcenter creation with electron irradiation in Ibtype diamond  
28  Keynote/Invited  2023/10  26th International Conference on Ion Beam Analysis, 18th International Conference on Particle Induced Xray Emission  T. Ohshima  Quantum Sensing using Spin Defects Locally Created in Silicon Carbide Devices by Microbeam 
29  Keynote/Invited  2023/10  Quantum Effect（Exhibition and Conference for Quantum Technology）Startup Forum  T. Sakai  Diamond NV Quantum Sensor Research in QLEAP 
30  Keynote/Invited  2023/10  Advanced Research Workshop on Biotechnology and human enhancement: present research and future perspectives  T. Ohshima  Spin Defects in Silicon Carbide as Quantum Technology 
31  2023/9  2023 International Conference on Silicon Carbide and Related Materials (ICSCRM)  Y. Yamazaki, N. Miyawaki, M. Hanawa, K. Murata, R. Akashi, S. Entani, K. Harii, H. Tsuchida, Y. Matsushita, M. Kohda, T. Ohshima  Effect of doping type and concentration on optical and spin properties of silicon vacancies in SiC  
32  2023/9  The 84th JSAP Autumn Meeting 2023  Y. Hatano, J. Tanigawa, A. Nakazono, T. Sekiguchi, Y.Kainuma, H. Abe, S. Onoda, T. Ohshima, T. Iwasaki, M. Hatano  Verification of Robustness in Electric Vehicle Battery Monitoring with Diamond Quantum Sensor  
33  2023/9  The 84th JSAP Autumn Meeting 2023  A. Yoshimura, N. Sekiguchi, M. Fushimi, A. Kitada, C. Shinei, M. Miyakawa, T. Taniguchi, T. Teraji, S. Onoda, T. Ohshima, M. Sekino, T. Iwasaki, M. Hatano  Developing a sensitive diamond quantum sensor system for detecting the brain magnetic field of a living rat  
34  2023/9  The 84th JSAP Autumn Meeting 2023  R. Suzuki, T. Mikawa, R. Okaniwa, Y. Matsuzaki, N. Tokuda, J. IshiHayase  Analysis of Electron Spin Double Resonance Spectra in Diamond Using Lindblad Master Equation  
35  2023/9  The 84th JSAP Autumn Meeting 2023  R. Okaniwa, Y. Matsuzaki, R. Suzuki, N. Tokuda, J. IshiHayase  Microwave Sensing using RFDressed States with NitrogenVacancy Centers in Diamond  
36  2023/9  The 84th JSAP Autumn Meeting 2023  Y. Kainuma, Y. Hatano, T. Shibata, H. Kato, S. Onoda, T. Ohshima, M. Hatano,, T. Iwasaki  Diamond NV magnetometer sensor head for high sensitivity and miniaturization  
37  2023/9  The 84th JSAP Autumn Meeting 2023  Y. Chen, K. Ikeda, P. Wang, T. Taniguchi, S. Onoda, M. Hatano, T. Iwasaki  Charge state dynamics of a tinvacancy center in diamond  
38  2023/9  The 84th JSAP Autumn Meeting 2023  Kazuki Oba1, Peng Wang1, Takashi Taniguchi2, Mutsuko Hatano1, Takayuki Iwasaki1  Spin Selective Excitation of a PbV Center in Diamond  
39  2023/9  The 84th JSAP Autumn Meeting 2023  T. Tanaka, Y. Yamazaki, D. Hisamoto, T. Ohshima  Measurement time reduction by time division method for simultaneous measurement of magnetic field and temperature by simultaneouslyresonated optically detected magnetic resonance using silicon vacancy based quantum sensor  
40  2023/9  The 84th JSAP Autumn Meeting 2023  K. Okura, K. Hayashi, T. An, J. IshiHayase  Development of an Atomic Force Microscope with Diamond Probe Containing NitrogenVacancy Centers for Magnetic Field Imaging  
41  2023/9  The 84th JSAP Autumn Meeting 2023  Y. Nishi, Y. Oiso, M. Hatano, T. Amemiya, N. Nishiyama  Fabrication of silicon nitride waveguides for greenlight  
42  2023/9  The 84th JSAP Autumn Meeting 2023  Y. Takahashi, Yu. Kinoshita, K. Akahane, J. IshiHayase,  Ultrafast Uniformed Quantum Manipulation using Chirped Pulses in InAs Quantum Dot Ensemble with Resonator  
43  2023/9  The 84th JSAP Autumn Meeting 2023  Y. Araki, I. Fujisaki, Z. Li, Y. Hatano, T. Sekiguchi, T. Iwasaki, M. Hatano  Sensitivity improvement of Diamond Quantum Sensors by Continuously Excited Ramsey Method  
44  2023/9  The 84th JSAP Autumn Meeting 2023  R. Kitagawa, S. Nagata, T. Kohashi, A. Nakatsuka, T. Tsuji, H. Nitta, K. Mizuno, Y. Takamura, T.i Iwasaki, S. Nakagawa, M. Hatano  Imaging of magnetization dynamics of soft magnetic thin film for power electronics by diamond quantum sensors  
45  2023/9  The 84th JSAP Autumn Meeting 2023  S. Naruse, R. Katsumi, T. Hizawa, D. Sato, K. Kawai, K. Takada, T. Yatsui  Design and fabrication of a diamond racetrack resonator with high qualityfactor  
46  2023/9  The 84th JSAP Autumn Meeting 2023  D. Sato, R. Katsumi, T. Hizawa, S. Naruse, K. Takada, K. Kawai, T. Yatsui  Investigation of a diamond NV nanolaser based on a plasmonic cavity using transfer printing  
47  2023/9  ICSCRM 2023 International Conference on Silicon Carbide and Related Materials  N. Morioka, T. Nishikawa, H. Abe, H. Morishita, T. Ohshima, N. Mizuochi  Electrical detection of nuclear spins in silicon carbide using silicon vacancy quantum spins in ambient conditions  
48  Keynote/Invited  2023/9  Symposium Silicon Carbide as QuantumClassical Platform  T. Ohshima  Sensing in SiC devices using silicon vacancy created by particle beam writing technique 
49  2023/9  33rd International Confefence on Diamond and Carbon Materials  F. Otsubo, T. Mikawa, Y. Matsuzaki, N. Tokuda, H. Watanabe, N. Mizuochi, J. IshiHayase  Widefield imaging of AC magnetic field generated by microcircuit with RFdressed states of electron spins in diamond  
50  2023/9  33rd International Confefence on Diamond and Carbon Materials  T. Mikawa, Y. Matsuzaki, T. N. Ikeda, R. Okaniwa, R. Suzuki, N. Tokuda, H. Watanabe, J. IshiHayase  Analysis of RFdressed states of nitrogenvacancy centers in diamond by the Floquet theory  
51  2023/9  33rd International Confefence on Diamond and Carbon Materials  R. Suzuki, H. Tabuchi, T. Mikawa, R. Okaniwa, Y. Matsuzaki, N. Tokuda, J. IshiHayase  Analysis of electron spin double resonance spectra in diamond using Lindblad master equation  
52  Keynote/Invited  2023/9  Quantum 2023  T. Iwasaki  Diamond Quantum Emitters Based on Heavy GroupIV Elements 
53  Keynote/Invited  2023/9  Quantum 2023  T. Ohshima  Quantum Sensing in Silicon Carbide Devices using Locally Formed Silicon Vacancy 
54  2023/9  33rd International Confefence on Diamond and Carbon Materials  R. Okaniwa, T. Mikawa, Y. Matsuzaki, T. Yamaguchi, R. Suzuki, N. Tokuda, H. Watanabe, N. Mizuochi, K. Sasaki, K. Kobayashi, J. IshiHayase  Frequencytunable MHzrange AC magnetometry using RF doubledressed states based on CWODMR measurement  
55  Keynote/Invited  2023/9  The 12th AsiaPacific Laser Symposium (APLS2023)  N. Mizuochi  Manipulation and creation of NV centers in diamond by laser irradiation 
56  Keynote/Invited  2023/9  The 65th FullerenesNanotubesGraphene General Symposium  M. Fujiwara, S. Inoue, S. Masuno, H. Fu, S. Tokita, M. Hashida, N. Mizuochi  Creation of nitrogenvacancy centers in diamond over a wide region by singleshot femtosecond laser pulse 
57  2023/7  2023 Quantum Sensing Gordon Research Conference  N. Sekiguchi, M. Fushimi, A. Yoshimura, C. Shinei, M. Miyakawa, T. Taniguchi, T. Teraji, S. Onoda, T. Oshima, M. Hatano, M. Sekino, T. Iwasaki  Diamond quantum magnetometer with a sensitivity of 13.4 pT Hz^–1/2 toward biomagnetic measurement  
58  Keynote/Invited  2023/7  Q2B 2023 Tokyo  M. Hatano  Potential of diamond quantum sensors 
59  Keynote/Invited  2023/6  IUMRSInternational conference on advanced maerials & 11th International conference on materials for advanced technologies  T. Ohshima  Quantum Sensing using silicon vacancy locally created in SiC devices by particle beam writing 
60  2023/6  SPICE Workshop on Quantum Spinoptics  R. Kitagawa, S. Nagata, R. Matsuk1, K. Arai, K. Mizuno, T. Kohashi, Y. Takamura, T. Iwasaki, S. Nakagawa, M. Hatano  Characterization of electric field control of magnetic domain structure in piezoelectricmagnetostrictive multiferroic hybrid structure using diamond quantum imager  
61  2023/5  INTERMAG 2023  H. Morishita, N. Morioka, T. Nishikawa, H. Yao, S. Onoda, H. Abe, T. Ohshima, .N. Mizuochi  SpinDependent Photocarrier Generation Dynamics in Electrically Detected NitrogenVacancyBased Quantum Sensor 