Glass-patternable notch-shaped microwave architecture for on-chip spin detection in biological samples.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 35510631.
- Also identified by DOI 10.1039/d2lc00112h.
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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 mm<sup>2</sup>) 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.
Medical subject headings
- Microwaves
- Nanodiamonds