| http://www.w3.org/ns/prov#value | - In order to improve the sensitivity of fiber-optic SPR sensor, most existing theoretical analysis and experimental methods are tried to change the shape of sensing region (e.g., retro-reflecting or tip tapered) [28], or change some parameters such as numerical aperture (NA), ratio of sensing region length to fiber core diameter, total bimetallic thickness, maximum absorption wavelength, and half m
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