Publications
ResearcherID : C-5956-2008 (TY, h-index: 24) , AAZ-8749-2021 (RK, h-index: 11)
Google Scholar : TY (h-index: 33), RK (h-index: 11)
2022
Ryota Katsumi, Takeshi Hizawa, Akihiro Kuwahata, Shun Naruse, Yuji Hatano, Takayuki Iwasaki, Mutsuko Hatano, Fedor Jelezko, Shinobu Onoda, Takeshi Ohshima, Masaki Sekino, Takashi Yatsui
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 | Tags: Diamond, magnetometer
@article{katsumi_grating,
title = {Transfer-printing-based integration of silicon nitride grating structure on single-crystal diamond toward sensitive magnetometers},
author = {Ryota Katsumi and Takeshi Hizawa and Akihiro Kuwahata and Shun Naruse and Yuji Hatano and Takayuki Iwasaki and Mutsuko Hatano and Fedor Jelezko and Shinobu Onoda and Takeshi Ohshima and Masaki Sekino and Takashi Yatsui},
doi = {10.1063/5.0107854},
year = {2022},
date = {2022-10-19},
urldate = {2022-10-19},
journal = {Applied Physics Letters},
volume = {121},
issue = {16},
pages = {161103},
abstract = {Negatively charged nitrogen-vacancy (NV) centers in diamond have emerged as promising candidates for a wide range of quantum applications, especially quantum sensing of magnetic field. Implementation of nanostructure into diamond is powerful for efficient photon collection of NV centers and chip-scale miniaturization of the device, which is crucial for sensitive and practical diamond magnetometers. However, fabrication of the diamond nanostructure involves technical limitations and can degrade the spin coherence of the NV centers. In this study, we demonstrate the hybrid integration of a silicon nitride grating structure on a single-crystal diamond by utilizing transfer printing. This approach allows the implementation of the nanostructure in diamond using a simple pick-and-place assembly, facilitating diamond-based quantum applications without any complicated diamond nanofabrication. We observed the intensity enhancement in the collected NV emissions both theoretically and experimentally using the integrated grating structure. By applying the increased photon intensity, we demonstrate the improved magnetic sensitivity of the fabricated device. The proposed hybrid integration approach will offer a promising route toward a compact and sensitive diamond NV-based magnetometer.},
keywords = {Diamond, magnetometer},
pubstate = {published},
tppubtype = {article}
}
Negatively charged nitrogen-vacancy (NV) centers in diamond have emerged as promising candidates for a wide range of quantum applications, especially quantum sensing of magnetic field. Implementation of nanostructure into diamond is powerful for efficient photon collection of NV centers and chip-scale miniaturization of the device, which is crucial for sensitive and practical diamond magnetometers. However, fabrication of the diamond nanostructure involves technical limitations and can degrade the spin coherence of the NV centers. In this study, we demonstrate the hybrid integration of a silicon nitride grating structure on a single-crystal diamond by utilizing transfer printing. This approach allows the implementation of the nanostructure in diamond using a simple pick-and-place assembly, facilitating diamond-based quantum applications without any complicated diamond nanofabrication. We observed the intensity enhancement in the collected NV emissions both theoretically and experimentally using the integrated grating structure. By applying the increased photon intensity, we demonstrate the improved magnetic sensitivity of the fabricated device. The proposed hybrid integration approach will offer a promising route toward a compact and sensitive diamond NV-based magnetometer.