Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2016 Apr 19;7:11331. doi: 10.1038/ncomms11331

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2016, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.

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/

PMC Copyright notice

(a,b) Schematic view of conventional plasmonic sensing. (a) The plasmonic resonance of the metallic nanoparticle as a function of λ. Inset shows a conventional plasmonic sensing system where a metallic nanoparticle (here a sphere) interacts with light and generates a detectable absorption peak due to plasmon resonance. (b) A zoomed-in region near the peak λ showing how it shifts in wavelength as the refractive index of the surrounding medium changes n₁<n₂. (c–f) Schematic view of polarization-dependent chiral plasmonic sensing. (c) The CD spectrum of a plasmonic enantiomer as a function of λ. Inset scheme illustrates the interaction of a left-handed nanohelix with circularly polarized light. Three bottom panels indicate the resonance shifts at (d) λ_m, (e) λ_M and (f) λ₀ where the refractive indices of the surrounding media are varied between n₁ and n₂.