Publications

ResearcherID : C-5956-2008 (TY, h-index: 25) , AAZ-8749-2021 (RK, h-index: 11)
Google Scholar : TY (h-index: 34), RK (h-index: 12)

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2025

Alignment-tolerant hybrid integration of a diamond quantum sensor on a silicon nitride photonic waveguide

Takada, Kosuke, Katsumi, Ryota, Kawai, Kenta, Sato, Daichi, Yatsui, Takashi

Alignment-tolerant hybrid integration of a diamond quantum sensor on a silicon nitride photonic waveguide Journal Article

In: Optics Express, vol. 33, iss. 11, pp. 22769-22779, 2025.

Abstract | Links | BibTeX | タグ: Diamond, nanophotonics

Recent progress in hybrid diamond photonics for quantum information processing and sensing

Katsumi, Ryota, Takada, Kosuke, Jelezko, Fedor, Yatsui, Takashi

Recent progress in hybrid diamond photonics for quantum information processing and sensing Journal Article

In: Communications Engineering, vol. 4, pp. 85, 2025.

Abstract | Links | BibTeX | タグ: Diamond, Review

High-sensitivity nanoscale quantum sensors based on a diamond micro-resonator

Katsumi, Ryota, Takada, Kosuke, Kawai, Kenta, Sato, Daichi, Yatsui, Takashi

High-sensitivity nanoscale quantum sensors based on a diamond micro-resonator Journal Article

In: Communications Materials, vol. 6, pp. 49, 2025.

Abstract | Links | BibTeX | タグ: Diamond

2024

Sensitivity improvement of a single-NV diamond magnetometer using a chiral waveguide

Takada, Kosuke, Katsumi, Ryota, Yatsui, Takashi

Sensitivity improvement of a single-NV diamond magnetometer using a chiral waveguide Journal Article

In: Optics Express, vol. 32, iss. 1, pp. 795-802, 2024.

Abstract | Links | BibTeX | タグ: Diamond

2023

Hybrid integration of ensemble nitrogen-vacancy centers in single-crystal diamond based on pick-flip-and-place transfer printing

Katsumi, Ryota, Takada, Kosuke, Naruse, Shun, Kawai, Kenta, Sato, Daichi, Hizawa, Takeshi, Yatsui, Takashi

Hybrid integration of ensemble nitrogen-vacancy centers in single-crystal diamond based on pick-flip-and-place transfer printing Journal Article

In: Applied Physics Letters, vol. 123, iss. 11, pp. 111108, 2023.

Abstract | Links | BibTeX | タグ: Diamond, NV center

2022

Transfer-printing-based integration of silicon nitride grating structure on single-crystal diamond toward sensitive magnetometers

Katsumi, Ryota, Hizawa, Takeshi, Kuwahata, Akihiro, Naruse, Shun, Hatano, Yuji, Iwasaki, Takayuki, Hatano, Mutsuko, Jelezko, Fedor, Onoda, Shinobu, Ohshima, Takeshi, Sekino, Masaki, Yatsui, Takashi

Transfer-printing-based integration of silicon nitride grating structure on single-crystal diamond toward sensitive magnetometers Journal Article

In: Applied Physics Letters, vol. 121, iss. 16, pp. 161103, 2022.

Abstract | Links | BibTeX | タグ: Diamond, magnetometer

Design of an ultra-sensitive and miniaturized diamond NV magnetometer based on a nanocavity structure

Katsumi, Ryota, Sekino, Masaki, Yatsui, Takashi

Design of an ultra-sensitive and miniaturized diamond NV magnetometer based on a nanocavity structure Journal Article

In: Japanese Journal of Applied Physics, vol. 61, no. 8, pp. 082004, 2022.

Abstract | Links | BibTeX | タグ: Diamond

2020

Magnetometer with nitrogen-vacancy center in a bulk diamond for detecting magnetic nanoparticles in biomedical applications

Kuwahata, Akihiro, Kitaizumi, Takahiro, Saichi, Kota, Sato, Takumi, Igarashi, Ryuji, Ohshima, Takeshi, Masuyama, Yuta, Iwasaki, Takayuki, Hatano, Mutsuko, Jelezko, Fedor, Kusakabe, Moriaki, Yatsui, Takashi, Sekino, Masaki

Magnetometer with nitrogen-vacancy center in a bulk diamond for detecting magnetic nanoparticles in biomedical applications Journal Article

In: Scientific Reports, vol. 10, pp. 2483, 2020.

Abstract | Links | BibTeX | タグ: Diamond, NV center

2018

Improving the electron spin properties of nitrogen-vacancy centres in nanodiamonds by near-field etching

Brandenburg, Felix, Nagumo, Ryosuke, Saichi, Kota, Tahara, Kosuke, Iwasaki, Takayuki, Hatano, Mutsuko, Jelezko, Fedor, Igarashi, Ryuji, Yatsui, Takashi

Improving the electron spin properties of nitrogen-vacancy centres in nanodiamonds by near-field etching Journal Article

In: Scientific Reports, vol. 8, pp. 15847, 2018.

Abstract | Links | BibTeX | タグ: Diamond, Nanophotonic fabrication, Near-field etching, NV center

2015

Spectral control of nanodiamond using dressed photon-phonon etching

Nagumo, Ryosuke, Brandenburg, Felix, Ermakova, Anna, Jelezko, Fedor, Yatsui, Takashi

Spectral control of nanodiamond using dressed photon-phonon etching Journal Article

In: Applied Physics A, vol. 121, no. 4, pp. 1335-1339, 2015.

Abstract | Links | BibTeX | タグ: Diamond, Nanophotonic fabrication, Near-field etching, NV center

2014

Polarization-controlled dressed-photon–phonon etching of patterned diamond structures

Yatsui, Takashi, Takeuchi, Daisuke, Koizumi, Satoshi, Sato, Kazuki, Tsuzuki, Kohei, Iwasaki, Takayuki, Hatano, Mutsuko, Makino, Toshiharu, Ogura, Masahiko, Kato, Hiromitsu, Okushi, Hideyo, Yamasaki, Satoshi

Polarization-controlled dressed-photon–phonon etching of patterned diamond structures Journal Article

In: physica status solidi (a), vol. 211, no. 10, pp. 2339-2342, 2014.

Abstract | Links | BibTeX | タグ: Diamond, First, Nanophotonic fabrication, Near-field etching

2012

Yatsui, Takashi, Nomura, Wataru, Naruse, Makoto, Ohtsu, Motoichi

Realization of an atomically flat surface of diamond using dressed photon–phonon etching Journal Article

In: Journal of Physics D: Applied Physics, vol. 45, no. 47, pp. 475302, 2012.

Abstract | Links | BibTeX | タグ: Diamond, First, Nanophotonic fabrication, Near-field etching