Abstract
A gold-plated D-formed photonic crystal fiber (PCF) has been facilitated for ultrahigh sensitive applications using surface plasmon resonance (SPR) approach. Gold layer has been chosen as the plasmonic material to avoid oxidizing trouble which is located at the smooth surface of PCF to ensure formation simplicity. The proposed D-SPR PCF is competent enough to sense the presence of biological change in the sample because of showing vigorous SPR effect imposed on core and plasmonic mode. Based on finite element approach, the property of PCF has been carried out in refractive index's (RI) range of 1.40 to 1.45 where the highest wavelength sensitivity (WS) clocks at 18,800 nm/RIU along with satisfactory amplitude sensitivity (AS) of 3152.7 RIU-1. The study of effect by changing manufacturing parameters of the proposed PCF is also worked out. Analyzing all the outcomes, it is hoped that the proposed model will be compatible enough to contribute its performance in bio-engineering approaches.