Sensing characteristics of the gold-silver alloy waveguided metallic photonic crystals

Yunyun Mu; Hongmei Liu; Hang Li; Jia Han; Cuiying Huang; Meng Wang; Tianrui Zhai; Xinping Zhang

doi:10.1117/12.2505917

24 January 2019 Sensing characteristics of the gold-silver alloy waveguided metallic photonic crystals

Yunyun Mu, Hongmei Liu, Hang Li, Jia Han, Cuiying Huang, Meng Wang, Tianrui Zhai, Xinping Zhang

Proceedings Volume 10840, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Micro- and Nano-Optics, Catenary Optics, and Subwavelength Electromagnetics; 1084007 (2019) https://doi.org/10.1117/12.2505917
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

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.

Citation Download Citation

Yunyun Mu, Hongmei Liu, Hang Li, Jia Han, Cuiying Huang, Meng Wang, Tianrui Zhai, and Xinping Zhang "Sensing characteristics of the gold-silver alloy waveguided metallic photonic crystals", Proc. SPIE 10840, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Micro- and Nano-Optics, Catenary Optics, and Subwavelength Electromagnetics, 1084007 (24 January 2019); https://doi.org/10.1117/12.2505917

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