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. 2017 Mar 20;7:44798. doi: 10.1038/srep44798

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Copyright © 2017, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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(a) PSM transmission spectra of for various incident angles. (b) Curve 1 represents the PSM transmission spectrum of vertical incidence (θ = 0°); curve 2 represents the occurrence in the PSM device of a biological reaction that caused the refractive index to increase to Δn = 0.01, identical to a PSM transmission spectrum with vertical incidence (θ = 0°); curve 3 represents the PSM transmission spectrum after a certain rotary angle of incident light.