Universal sensitivity of propagating surface plasmon resonance in nanostructure arrays

Peipei Jia, Jun Yang
2015 Optics Express  
Creative Commons Licensing OSA is aware that some authors, as a condition of their funding, must publish their work under a Creative Commons license. We therefore offer a CC BY license for authors who indicate that their work is funded by agencies that we have confirmed have this requirement. Authors must enter their funder(s) during the manuscript submission process. At that point, if appropriate, the CC BY license option will be available to select for an additional fee. Any subsequent reuse
more » ... y subsequent reuse or distribution of content licensed under CC BY must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Abstract: A universal, geometry-independent sensitivity is derived by using a black box model of surface plasmon excitation for two-dimensional nanostructures. It is shown that the resonant wavelength of surface plasmons and dielectric property of interfacial materials dominate the sensitivity. Sensitivity data of nanostructure arrays, widely collected from independent research groups, comply well with our results. This analysis provides a conceptual and intuitive insight into the plasmonic sensing, covering various excitation arrangements under the same umbrella. The universal sensitivity offers a quantitative tool to evaluate and predict the performance of plasmonic sensors.
doi:10.1364/oe.23.018658 pmid:26191924 fatcat:wayfbyipdvaefdgq454pcckmee