Abstract
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 × 2.0 mm2) and gigahertz-broadband characteristics with low reflection (∼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.
Original language | English |
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Pages (from-to) | 2519-2530 |
Number of pages | 12 |
Journal | Lab on a Chip |
Volume | 22 |
Issue number | 13 |
DOIs | |
Publication status | Published - Jun 28 2022 |
ASJC Scopus subject areas
- Bioengineering
- Biochemistry
- Chemistry(all)
- Biomedical Engineering