Abstract
A refractive index (RI) sensor based on the surface plasmon resonance effect is proposed using a truncated cladding negative curvature fiber (TC-NCF). The influences of the TC-NCF structure parameters on the sensing performances are investigated and compared with the traditional NCF. The simulation results show that the proposed TC-NCF RI sensor has an ultra-wide detection range from 1.16 to 1.43. The maximum wavelength sensitivity reaches 12400 nm/RIU, and the corresponding R 2 of the polynomial fitting equation is 0.9999. The maximum and minimum resolutions are 2.56 × 10−5 and 8.06 × 10−6, respectively. In addition, the maximum amplitude sensitivity can reach -379.1 RIU−1 when the RI is chosen as 1.43. The proposed TC-NCF RI sensor could be useful in biochemical medicine, environmental monitoring, and food safety.
Original language | English |
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Article number | 034208 |
Pages (from-to) | 1-9 |
Number of pages | 9 |
Journal | Chinese Physics B |
Volume | 32 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 Mar 2023 |