Optimization of plasmonic sensors in visible and infrared regime

In this invited paper, we glance at the history of plasmonic sensors and provide the optimization study of representative plasmonic sensors such as surface plasmon resonance (SPR) sensors, localized SPR sensors, and fiber grating SPR sensors. The key variables of specific plasmonic sensors are numerically examined and compared. Furthermore, we discuss the recent developments and prospect on various plasmonic sensors.