Overview of plasmonic sensors and their design methods

We review recent advances in the plasmonic sensors associated with chemical and biological sensor system and introduce their structural design method for enhancement of sensing performance such as detection limits, sensitivity, and dynamic range, relative to the commercial systems. In addition, the effect of structural parameters of surface plasmon resonance based sensors with transmission or reflection-type configuration is discussed. We also discuss the optimal condition of the sensors with nano-structures as well as flat metallic layer structures for practical sensing and provide the methods for improving sensing capability.

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