195 citations · 319 across the 7 of their papers we have counts for
8 papers
Geometric estimation of NV charge-state contributions from a low-dimensional spectral representation
Yuto Yamakawa, Keisuke Oshimi, Keigo Arai
Nitrogen-vacancy (NV) centers in diamond exist in neutral (NV0) and negatively charged (NV-) states, and quantifying their respective photoluminescence (PL) contributions is import…
Engineering Nanodiamonds for Quantum Sensing: Material Constraints at the Nanoscale
Ashutosh Rathi, Keisuke Oshimi, Kento Sasaki +6
Optically addressable solid-state spin defects have emerged as powerful multimodal quantum sensors, with nitrogen-vacancy (NV) centers in bulk diamond providing benchmark quantum c…
Universal scaling of electrochemical information transfer at solid-liquid interfaces
Eikichi Kimura, Ashutosh Rathi, Saki Tsuchiya +6
Electrochemical potentials at solid-liquid interfaces govern diverse chemical and energy conversion processes; however, the extent to which their electrochemical influence extends…
Quantum-grade nanodiamonds for ultrabright spin detection in live cells
Keisuke Oshimi, Hiromu Nakashima, Sara Mandić +7
Optically accessible spin-active nanomaterials are promising as quantum nanosensors for probing biological samples. However, achieving bioimaging-level brightness and high-quality…
Glass-patternable notch-shaped microwave architecture for on-chip spin detection in biological samples
Keisuke Oshimi, Yushi Nishimura, Tsutomu Matsubara +16
We report a notch-shaped coplanar microwave waveguide antenna on a glass plate designed for on-chip detection of optically detected magnetic resonance (ODMR) of fluorescent nanodia…
Wide-field fluorescent nanodiamond spin measurements toward real-time large-area intracellular quantum thermometry
Yushi Nishimura, Keisuke Oshimi, Yumi Umehara +8
In this study, we analyze the operational process of nanodiamond (ND) quantum thermometry based on wide-field detection of optically detected magnetic resonance (ODMR) of nitrogen…
Real-time estimation of the optically detected magnetic resonance shift in diamond quantum thermometry
Masazumi Fujiwara, Alexander Dohms, Ken Suto +6
We investigate the real-time estimation protocols for the frequency shift of optically detected magnetic resonance (ODMR) of nitrogen-vacancy (NV) centers in nanodiamonds (NDs). Ef…
Real-time nanodiamond thermometry probing in-vivo thermogenic responses
Masazumi Fujiwara, Simo Sun, Alexander Dohms +12
Real-time temperature monitoring inside living organisms provides a direct measure of their biological activities, such as homeostatic thermoregulation and energy metabolism. Howev…