Square and hexagonal plasmonic nanohole arrays

Square and hexagonal plasmonic nanohole arrays

Yasa Ekşioğlu Özok

Dept. of Electrical and Electronics Engineering,

Istanbul Kemerburgaz University

Abstract: Nanohole arrays in metal films allow extraordinary optical transmission (EOT) which is highly advantageous for biosensing applications. In this talk, I will present numerical comparison of the refractive index sensitivities of the two lattice geometries. The hexagonal array supports larger figure-of-merit values due to its sharper EOT response. The presence of a thin dielectric film that mimics a biomolecular layer causes larger spectral shifts within the EOT resonance for the hexagonal array. We found that hexagonal lattice is highly promising for applications demanding strong light transmission.

 

Yer : MSGSÜ Bomonti Binası, Fizik Bölümü
Tarih : 7 Nisan 2016 Perşembe, 15:00