Coating configuration dependency of fiber optic silver coated U-bent plasmonic sensor surfaces in concentration sensing measurements
V. C. Priyamvada , C. Ajina , P. Radhakrishnan
Optoelectronics Letters ›› : 465 -469.
Coating configuration dependency of fiber optic silver coated U-bent plasmonic sensor surfaces in concentration sensing measurements
The sensitivity of the plasmonic sensor surfaces can be enhanced significantly if the sensor region is bent to U shape. Here, an experimental verification is done to evaluate the performance variations of the U-bent plasmonic silver coated sensor surfaces with different coating orientations inside the vacuum coating chamber. The performances of uncoated, partially coated as well as fully coated optical fiber U-bent surfaces are analyzed. The results show that the coating configuration of the U-bent surfaces can affect the sensing property. A fully silver coated sensor region outperforms the other two types of sensor surfaces with better sensing capability.
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