165 citations · 616 across the 22 of their papers we have counts for
23 papers
Single-particle detection of the Néel transition in LaCrO microcrystals via widefield nitrogen-vacancy center magnetic imaging
Carson O. Patterson, Ethan Q. Williams, Eden Tzanetopoulos +6
Rare-earth orthochromites exhibit rich, chemically tunable magnetic behavior, making them attractive for temperature sensing and temperature-dependent switching applications. Reali…
Efficient creation of shallow NV ensembles by high-angle ion implantation
Kento Sasaki, Hideyuki Watanabe, Tokuyuki Teraji +3
Negatively charged nitrogen-vacancy (NV) centers located a few nanometers below the diamond surface are key quantum defects for nanoscale sensing of external spins. However, th…
Imaging of high-frequency electromagnetic field by multipulse sensing using nitrogen vacancy centers in diamond
Shintaro Nomura, Hideyuki Watanabe, Satoshi Kashiwaya
Near-field enhancement of the microwave field is applied for imaging high frequency radio field using a diamond chip with an -doped isotopically purified diamond layer grown by…
Angle dependence of N nuclear spin dynamics in diamond NV centers
Yusuke Azuma, Shintaro Nomura, Hideyuki Watanabe +1
We report on the dynamics of the Rabi oscillation and the Larmor precession of N nuclear spin using nonselective short microwave pulses for initialization of N nuclea…
Frequency-tunable magnetic field sensing using continuous-wave optically detected magnetic resonance with nitrogen-vacancy centers in diamond
Ryusei Okaniwa, Takumi Mikawa, Yuichiro Matsuzaki +8
The nitrogen-vacancy (NV) center is a promising candidate to realize practical quantum sensors with high sensitivity and high spatial resolution, even at room temperature and atmos…
Suppression of Brillouin oscillation in transparent free-standing diamond thin films in picosecond ultrasound
Hsu Kai Weng, Akira Nagakubo, Hideyuki Watanabe +1
Brillouin oscillation appears in picosecond ultrasonics for a transparent specimen because of backward light scattering by moving strain pulse. Its amplitude is comparable with tho…
Lattice thermal conductivity in isotope diamond asymmetric superlattices
Hsu Kai Weng, Akira Nagakubo, Hideyuki Watanabe +1
We study lattice thermal conductivity of isotope diamond superlattices consisting of 12C and 13C diamond layers at various superlattice periods. It is found that the thermal conduc…
Probing topological spin structures using light-polarization and magnetic microscopy
Till Lenz, Georgios Chatzidrosos, Zhiyuan Wang +12
We present an imaging modality that enables detection of magnetic moments and their resulting stray magnetic fields. We use wide-field magnetic imaging that employs a diamond-based…
Detection and control of single proton spins in a thin layer of diamond grown by chemical vapor deposition
Kento Sasaki, Hideyuki Watanabe, Hitoshi Sumiya +2
We report detection and coherent control of a single proton nuclear spin using an electronic spin of the nitrogen-vacancy (NV) center in diamond as a quantum sensor. In addition to…
Control of all the transitions between ground state manifolds of nitrogen vacancy centers in diamonds by applying external magnetic driving fields
Tatsuma Yamaguchi, Yuichiro Matsuzaki, Soya Saijo +3
Nitrogen vacancy (NV) centers in diamonds is a promising system for quantum information processing and quantum sensing, and the control of the quantum state is essential for practi…
Wide-field dynamic magnetic microscopy using double-double quantum driving of a diamond defect ensemble
Zeeshawn Kazi, Isaac M. Shelby, Hideyuki Watanabe +4
Wide-field magnetometry can be realized by imaging the optically-detected magnetic resonance of diamond nitrogen vacancy (NV) center ensembles. However, NV ensemble inhomogeneities…
Bandwidth analysis of AC magnetic field sensing based on electronic spin double resonance of nitrogen-vacancy centers in diamond
Tatsuma Yamaguchi, Yuichiro Matsuzaki, Shiro Saito +3
Recently we have demonstrated AC magnetic field sensing scheme using a simple continuous-wave optically detected magnetic resonance of nitrogen-vacancy centers in diamond [Appl. Ph…
Demonstration of vector magnetic field sensing by simultaneous control of nitrogen-vacancy centers in diamond using multi-frequency microwave pulses
Ken Yahata, Yuichiro Matsuzaki, Shiro Saito +2
An ensemble of nitrogen-vacancy (NV) centers in diamond is a fascinating candidate to realize a sensitive magnetic field sensor. In particular, since the axes of the NV centers are…
Detection of the phase shift of an alternating-current magnetic field by quantum sensing with multiple-pulse decoupling sequences
Toyofumi Ishikawa, Akio Yoshizawa, Yasunori Mawatari +2
Magnetometry utilizing a spin qubit in a solid state possesses high sensitivity. In particular, a magnetic sensor with a high spatial resolution can be achieved with the electron-s…
Influence of dynamical decoupling sequences with finite-width pulses on quantum sensing for AC magnetometry
Toyofumi Ishikawa, Akio Yoshizwa, Yasunori Mawatari +2
Dynamical decoupling sequences with multiple pulses can be considered to exhibit filter functions for the time evolution of a qubit superposition state. They contribute to the impr…
Coherent control of solid state nuclear spin nano-ensembles
Thomas Unden, Nikolas Tomek, Timo Weggler +11
Detecting and controlling nuclear spin nano-ensembles is crucial for the further development of nuclear magnetic resonance (NMR) spectroscopy and for the emerging solid state quant…
AC Magnetic Field Sensing Using Continuous-Wave Optically Detected Magnetic Resonance of Nitrogen Vacancy Centers in Diamond
Soya Saijo, Yuichiro Matsuzaki, Shiro Saito +4
Nitrogen-vacancy (NV) centers in diamond are considered sensors for detecting magnetic fields. Pulsed optically detected magnetic resonance (ODMR) is typically used to detect AC ma…
Nitrogen-vacancy centers created by N ion implantation through screening SiO layers on diamond
Kazuki Ito, Hiroshi Saito, Hideyuki Watanabe +3
We report on an ion implantation technique utilizing a screening mask made of SiO to control both the depth profile and the dose. By appropriately selecting the thickness of th…
Magnetic field sensitivity and decoherence spectroscopy of an ensemble of narrow-linewidth nitrogen-vacancy centers close to a diamond surface
Kento Sasaki, Ed E. Kleinsasser, Zhouyang Zhu +5
We perform pulsed optically detected electron spin resonance to measure the DC magnetic field sensitivity and electronic spin coherence time T_2 of an ensemble of near-surface, hig…
Broadband, large-area microwave antenna for optically-detected magnetic resonance of nitrogen-vacancy centers in diamond
Kento Sasaki, Yasuaki Monnai, Soya Saijo +5
We report on a microwave planar ring antenna specifically designed for optically-detected magnetic resonance (ODMR) of nitrogen-vacancy (NV) centers in diamond. It has the resonanc…
High density NV sensing surface created via He^(+) ion implantation of (12)^C diamond
Ed E. Kleinsasser, Matthew M. Stanfield, Jannel K. Q. Banks +6
We present a promising method for creating high-density ensembles of nitrogen-vacancy centers with narrow spin-resonances for high-sensitivity magnetic imaging. Practically, narrow…
Isotope engineering of silicon and diamond for quantum computing and sensing applications
Kohei M. Itoh, Hideyuki Watanabe
Some of the stable isotopes of silicon and carbon have zero nuclear spin, whereas many of the other elements that constitute semiconductors consist entirely of stable isotopes that…
Absolute magnetometry based on quantum beats in diamond nitrogen-vacancy centers
Kejie Fang, Victor M. Acosta, Charles Santori +5
We demonstrate an absolute magnetometer immune to temperature fluctuation and strain inhomogeneity, based on quantum beats in the ground state of nitrogen-vacancy centers in diamon…