@article{oai:oist.repo.nii.ac.jp:00000866,
 author = {Ball, Jason R. and Yamashiro, Yu and Sumiya, Hitoshi and Onoda, Shinobu and Ohshima, Takeshi and Isoya, Junichi and Konstantinov, Denis and Kubo, Yuimaru},
 issue = {20},
 journal = {Applied Physics Letters},
 month = {May},
 note = {We designed a loop-gap microwave resonator for applications of spin-based hybrid quantum systems and tested it with impurity spins in diamond. Strong coupling with ensembles of nitrogen-vacancy (NV) centers and substitutional nitrogen (P1) centers was observed. These results show that loop-gap resonators are viable in the prospect of spin-based hybrid quantum systems, especially for an ensemble quantum memory or a quantum transducer.},
 title = {Loop-gap microwave resonator for hybrid quantum systems},
 volume = {112},
 year = {2018}
}