Atomically flat symmetric elliptical nanohole arrays in a gold film for ultrasensitive refractive index sensing
Abstract
Past works on refractive index sensing using nanohole arrays in metal films typically achieved a resolution of around 10−4 to 10−5 refractive index units (RIU), up to 10−6 with complicated detection setups. This is an order of magnitude worse than commercial Kretschmann-based surface-plasmon resonance (
- This article is part of the themed collection: Focus on Canada