Presentation
3 March 2022 High-sensitivity nanophotonic sensors with passive trapping of analyte molecules in hot spots
Xianglong Miao, Lingyue Yan, Yun Wu, Peter Q. Liu
Author Affiliations +
Abstract
We demonstrate a proof-of-concept design of a new type of nanophotonic molecular sensors with the functionality of trapping target biomolecules to the device regions of highly enhanced field intensity, and hence facilitating improvement of sensing performance. Our experimental results show that these devices are capable of effectively accumulating precipitated L-Proline after the analyte solution of various concentrations dries on the device surface. Specifically, our devices produce a few percentage reflection (absorption) change in response to picogram level amino acid proline. Our work demonstrates a new strategy for designing optical sensors for detecting and sensing trace amount of analyte such as molecules in solutions.
Conference Presentation
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Xianglong Miao, Lingyue Yan, Yun Wu, and Peter Q. Liu "High-sensitivity nanophotonic sensors with passive trapping of analyte molecules in hot spots", Proc. SPIE PC11976, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIX, PC1197606 (3 March 2022); https://doi.org/10.1117/12.2609216
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KEYWORDS
Molecules

Sensors

Nanophotonics

Optical sensors

Infrared spectroscopy

Molecular photonics

Resonators

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