Simulation of Periodic 6-Point Shuriken Nano-Structures to Use in SPR Sensors

Surface plasmon resonance or SPR, was first observed on the verge of thetwentieth century. In late 60s and early 70s, simple methods to implement andexcite surface plasmons were introduced. Since then, numerous applicationshave been proposed to utilize SPR, from biosensors to optical switches. Thisis due to the sensitivity of SPR to fine changes in the conditions of theenvironment (for example temperature or concentration), and its ability towork in real time. It is imperative to design and propose structures withdifferent SPR properties to enable the possibility of tailoring devices to meetthe needs of science and technology. The purpose of this study is to investigatenano sensors with a periodic 6-point shuriken structure to excite localizedsurface plasmons (LSPR). It is shown in this study that the aforementionedsensor can have a sensitivity of up to 600 nm/RIU, using Kretschmannconfiguration and silver nano particles.