...Baoling Wang; Nannan Luan Purpose This paper aims to simplify the fabrication and broaden the applications of hollow fiber-based surface plasmon resonance ( SPR ) sensors for low refractive index ( RI ) detection. Design/methodology/approach The authors propose an external coating design...

... with variations in analyte refractive index. Findings The incorporation of Cu nanoparticles narrows the full-width at half-maximum ( FWHM ) of the resonance peak, leading to sharper spectral responses. The analysis shows a redshift in the resonant wavelength with increasing analyte refractive index, resulting...

...° and 135° are shown in Figure 5(a)-(c) . Figure 5 Wavelength-light intensity of the sensor for different polishing angles The spectrum of the POF-SPR sensor is measured in air and in solutions of different refractive indexes, and the spectrum is normalized. The sensor obtains the SPR...

...Jiang Qi Purpose The purpose of this paper is to compare the sensing characteristics of uniform fiber Bragg grating (FBG) and tilted fiber Bragg grating (TFBG) by presenting a detailed research review. Temperature, axial strain, bending, vibration and refractive index measurands of FBG and TFBG...