Glass-patternable notch-shaped microwave architecture for on-chip spin detection in biological samples

Lab on a Chip, 2022, advanced publication We report a notch-shaped coplanar microwave waveguide antenna on a glass plate designed for on-chip detection of optically detected magnetic resonance (ODMR) of fluorescent nanodiamonds (NDs). A lithographically patterned thin wire at the center of the notch...

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Bibliographic Details
Main Authors:	Oshimi, Keisuke, Nishimura, Yushi, Matsubara, Tsutomu, Tanaka, Masuaki, Shikoh, Eiji, Zhao, Li, Zou, Yajuan, Komatsu, Naoki, Ikado, Yuta, Takezawa, Yuka, Kage-Nakadai, Eriko, Izutsu, Yumi, Yoshizato, Katsutoshi, Morita, Saho, Tokunaga, Masato, Yukawa, Hiroshi, Baba, Yoshinobu, Teki, Yoshio, Fujiwara, Masazumi
Format:	Journal Article
Language:	English
Published:	06-05-2022
Subjects:	Physics - Applied Physics Physics - Quantum Physics
Online Access:	Get full text
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Summary:	Lab on a Chip, 2022, advanced publication We report a notch-shaped coplanar microwave waveguide antenna on a glass plate designed for on-chip detection of optically detected magnetic resonance (ODMR) of fluorescent nanodiamonds (NDs). A lithographically patterned thin wire at the center of the notch area in the coplanar waveguide realizes a millimeter-scale ODMR detection area (1.5 x 2.0 mm^2) and gigahertz-broadband characteristics with low reflection (about 8%). The ODMR signal intensity in the detection area is quantitatively predictable by numerical simulation. Using this chip device, we demonstrate a uniform ODMR signal intensity over the detection area for cells, tissue, and worms. The present demonstration of a chip-based microwave architecture will enable scalable chip integration of ODMR-based quantum sensing technology into various bioassay platforms.
DOI:	10.48550/arxiv.2205.02970