Dr. Kyohei Okubo Profile

Dr. Kyohei Okubo

Assistant Professor at Tokyo Institute of Technology

SPIE Involvement:

Author

Area of Expertise:

Photonics , Near Infrared Spectroscopy/Imaging , Biomedical Devices , Biosensor , Magnetic Nanoparticle

Profile Summary

Kyohei Okubo received his Ph.D. from University of Tsukuba in 2017. He was a JSPS postdoctoral researcher at the University of Tokyo (2017-2018) and then was an assistant professor at Tokyo University of Science (2018-2023). He joined Department of Materials Science and Engineering of Tokyo Institute of Technology as an assistant professor in 2023. His research interests span the fields of biosensor and bioimaging: silicon photonics, plasmonics, biomedical devices, drug-delivery systems, and magnetic nanoparticles.

Publications (5)

Proceedings Article | 30 March 2024 Poster

Non-invasive imaging of exposed nerves in vivo with near-infrared hyperspectral laparoscopic devices

Ryodai Fukushima, Toshihiro Takamatsu, Konosuke Sato, Kyohei Okubo, Masakazu Umezawa, Nobuhiro Takeshita, Hiro Hasegawa, Hideo Yokota, Kohei Soga, Hiroshi Takemura

Proceedings Volume 12928, 129281X (2024) https://doi.org/10.1117/12.3006474

KEYWORDS: Laparoscopy, Imaging devices, Near infrared, In vivo imaging, Surgery, Nervous system, Visible radiation, Tissues, Vibration, Resection

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SPIE Journal Paper | 22 August 2023 Open Access

Evaluating the identification of the extent of gastric cancer by over-1000 nm near-infrared hyperspectral imaging using surgical specimens

Tomohiro Mitsui, Akino Mori, Toshihiro Takamatsu, Tomohiro Kadota, Konosuke Sato, Ryodai Fukushima, Kyohei Okubo, Masakazu Umezawa, Hiroshi Takemura, Hideo Yokota, Takeshi Kuwata, Takahiro Kinoshita, Hiroaki Ikematsu, Tomonori Yano, Shin Maeda, Kohei Soga

JBO, Vol. 28, Issue 08, 086001, (August 2023) https://doi.org/10.1117/12.10.1117/1.JBO.28.8.086001

KEYWORDS: Cancer, Tumors, Tissues, Hyperspectral imaging, Near infrared, Resection, Endoscopy, Natural surfaces, Surgery, Biological samples

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Proceedings Article | 3 April 2023 Paper

Hyperspectral imaging and detection mapping of in vivo biological tissues applying near-infrared laparoscope

R. Fukushima, T. Takamatsu, A. Mori, K. Sato, K. Okubo, M. Umezawa, N. Takeshita, H. Hasegawa, H. Yokota, K. Soga, H. Takemura

Proceedings Volume 12466, 124662K (2023) https://doi.org/10.1117/12.2653684

KEYWORDS: Near infrared, Laparoscopy, Tissues, Nervous system, Arteries, In vivo imaging, Visible radiation, Surgery, Neural networks, Hyperspectral imaging

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SPIE Journal Paper | 5 January 2017

Silicon nitride directional coupler interferometer for surface sensing

Kyohei Okubo, Ken Uchiyamada, Kiyoshi Asakawa, Hiroaki Suzuki

OE, Vol. 56, Issue 01, 017101, (January 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.1.017101

KEYWORDS: Waveguides, Sensors, Refractive index, Directional couplers, Silicon, Interferometers, Water, Cladding, Polymers, Microfluidics

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Proceedings Article | 22 April 2016 Presentation + Paper

Fabrication and characterization of silicon nitride directional coupler interferometer for sensing aptamer hybridization

K. Okubo, K. Uchiyamada, M. Yokokawa, K. Asakawa, H. Suzuki

Proceedings Volume 9725, 972506 (2016) https://doi.org/10.1117/12.2211899

KEYWORDS: Waveguides, Silicon, Directional couplers, Biosensing, Near field optics, Interferometers, Interferometry, Polymeric sensors, Sensors, Refractive index, Near field, Biosensors, Light wave propagation, Beam propagation method

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