Biosensing with the singular phase of an ultrathin metal-dielectric nanophotonic cavity
Optical sensors generally rely on abrupt phase changes to detect the presence of an analyte, but oftentimes they require complex nanostructures. Here, Sreekanth et al. use a simple asymmetric thin-film multilayer stack to demonstrate a point of darkness and phase singularity to develop a sensitive b...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2018-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-018-02860-6 |