Size dependence of Au NP-enhanced surface plasmon resonance based on differential phase measurement

• Main Authors: Zeng, Shuwen, Yu, Xia, Law, Wing-Cheung, Zhang, Yating, Hu, Rui, Dinh, Xuan-Quyen, Ho, Ho-Pui, Yong, Ken-Tye
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering::Materials::Nanostructured materials
• Online Access: https://hdl.handle.net/10356/102279; http://hdl.handle.net/10220/18859
• Institution: Nanyang Technological University

The impact of spherical gold nanoparticles (Au NPs) with diameters of 40–80 nm for the enhancement of surface plasmon resonance (SPR) sensing signals is presented. Numerical analysis is given to simulate the perturbation of evanescent field in the presence of Au NPs. The results indicate that Au NPs...