Surface Plasmon Resonance (SPR) Sensor Based on Optimal Pre- and Post-Selection
IEEE Photonics Journal(2019)
Abstract
A surface plasmon resonance (SPR) refractive index sensing technique based on the optimal pre-and post-selection (PPS) is put forward. The intensity contrast ratio (ICR) is introduced to estimate the precision of this sensing technique. Compared with the traditional sensing techniques, our method shows that the ICR can be improved by about two orders of magnitude with optimal pre-and post-selected...
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Key words
Sensors,Refractive index,Plasmons,Laser theory,Metals,Measurement by laser beam
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