Sensing characteristics of the gold-silver alloy waveguided metallic photonic crystals
Abstract
The waveguided metallic photonic crystal biosensor based on gold-silver alloy material is expected to achieve better sensing sensitivity than the same structure of pure gold. By using the gold-silver alloy nanoparticles as "building block", we successfully assemble one-dimensional waveguided metallic photonic crystals through a solution processible method. This is a simple and low cost method to fabricate one or two dimensional metallic crystals in large area. The sensitivity of the biosensor based on the gold-silver alloy waveguided metallic photonic crystal is 2.5 times that of the same structure made by pure gold. The gold-silver alloy nanoparticles assembled waveguided metallic photonic crystals exhibits potential application in biosensing due to its low-cost and simple testing methods.
- Publication:
-
9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Micro- and Nano-Optics, Catenary Optics, and Subwavelength Electromagnetics
- Pub Date:
- January 2019
- DOI:
- 10.1117/12.2505917
- Bibcode:
- 2019SPIE10840E..07M