Masazumi (Zumi) received his PhD in physics at Osaka City University in 2008. He worked for quantum nanophotonics at Hokkaido Univ. (2009-2014) and Humboldt Univ. Berlin (2013-2015). Since 2015, he has been working for quantum sensing at Kwansei Gakuin Univ. (2015-2016), Osaka City Univ. (2016-2021), and Okayama Univ. (2021-present).  See the detailed bibliography.

Ashutosh Rathi focuses on developing and utilizing advanced photo-magnetic techniques, primarily leveraging quantum defects in (nano)diamond, to explore biological systems. Previously, he worked on quantum sensing and malaria diagnostics at the Indian Institute of Technology Madras and time-resolved optical spectroscopy at the Fritz Haber Institute, Berlin. He earned his PhD in Physics from the National Physical Laboratory of India.

He is based in Prof. Tim Schroeder's group  at Humboldt University of Berlin. Keisuke obtained BComm

in 2019 and MSc in 2021 at Osaka City University and PhD in Chemistry in 2024 at Okayama University. He was awarded to OU-Fellowship, JSPS-fellowship. He loves playing piano pieces by Beethon (Moonlight Sonata 3rd Movt, Waldstein Sonata 3rd Movt).

Sara is interested in analytical biochemistry and currently investigates thermotaxis behavior of C. elegans, and molecular mechanisms behind it, by combining quantum thermometry with different imaging techniques. She received an MSc from Maastricht University, Netherlands in 2022 and a PhD from Okayama University in 2025, where she was supported by the OU Fellowship.

Eriko is working on group administration and experiments related to cultured cells and C.elegans. She knows best about Okayama among us!

Masae is working on group administration.  She is learning many things from them every day!

Mina received her MSc in Nanotechnology Engineering - Nanoelectronics from University of Tabriz in Iran. Her latest achievements was published in Plasmonics journal. She primarily works on application of nanodiamond thermometry to cellular thermal analysis. Her research interest is development of nanophotonic biosensors in cell research. She loves art, especially oil painting and chiaroscuro.

Hiromu is interested in measurement device mechanism and nanodiamonds and is studying microwave antennas and loop gap resonator. He was a transfer student from National Institute of Technology Tsuyama college in 2021.

Kristi Kanya Saikia received her MSc in Applied Chemistry from the Central University of Punjab, India. Her recent research on photocatalytic water splitting was published in ACS Applied Nano Materials. She is currently focusing on pH and voltage modulation of nanodiamonds. Her research interests lie in the development of advanced and versatile pH sensors for diverse applications. Beyond the lab, she enjoys exploring new places and expressing her creativity through doodling.

Fumiya is interested in the analysis of nanomaterials and biology and is studying calcium imaging. He has been a transfer student from National Anan Institute of Technology in 2022.

Kazuki is interested in surface modification of nanodiamonds.
He is learning various chemical synthesis and trying new functional groups.

Kanata is interested in nano-heaters and nano-thermometers and is studying composites of gold nanoparticles and nanodiamonds.

Nahono is interested in development of a new device and biology and is studying stage-top incubator and nanodiamonds.

Yumiko is interested in temperature effect to metabolism. She is studying Ca imaging of C. elegans.

Areesha is focusing on quantum sensor-based microscopic thermal analysis using nanodiamond quantum thermometers. I am particularly interested in exploring nanoscale heat transport and thermal imaging techniques for advanced material characterization.

Yuki is conducting research in which I separate nanodiamonds by size using a centrifuge and introduce them into nematodes.

​Haruki is conducting research on the surface properties of nanodiamonds. And he swims almost every day.