Studies on Chalcogenide materials based plasmonic biochemical sensors in near infrared with optical fiber prism and two dimensional 2D materials

Abstract

Sensors play an important role for their applications in different areas and have been extensively developed during the past few decades. More recently, a new era in sensor technology has been ushered in by the development of plasmonic sensors, permitting the exploitation of surface plasmon resonance (SPR) phenomenon in the field of chemical and biological sensing applications. However, advances in constituent s technology and better performance have enabled plasmonic sensing methods to mature from laboratory systems into commercial products. Thesis presents the results of theoretical studies on SPR based sensors in near infrared (NIR) region. SPR sensors are based on the monitoring of refractive index changes of sensing layer in the vicinity of a metal layer. More precisely, thesis is focussed on the application of chalcogenide glasses (ChG) and two-dimensional (2D) materials for SPR sensing in NIR region. The analysis is done for the detection of analytes such as alcohols, cancerous liver tissue sample and mixture of alcohols. newline