Hua Lin, Xian Zhang, Xiaosong Zhu, Yiwei Shi. Refractive Index Sensor Based on Hollow Optical Fiber with Metal-Dielectric-Metal Multilayered Films Structure[J]. Acta Optica Sinica, 2018, 38(6): 0606006
- Acta Optica Sinica
- Vol. 38, Issue 6, 0606006 (2018)
Fig. 1. Structural diagram of MIM hollow optical fiber
Fig. 2. Transmission spectra of sensor under different inner Ag layer thicknesses
Fig. 3. Transmission spectra of sensor versus outer Ag layer thickness under different liquids to be measured. (a) Refractive index of 1.52; (b) refractive index of 1.37
Fig. 4. Effect of medium layer thickness on sensor performances. (a) Normalized spectra; (b) sensitivity
Fig. 5. Parallel electric field distributions at resonance for different dielectric films with a high refractive index. (a) Thick AgI; (b) thin AgI; (c) COP; (d) SiO2
Fig. 6. Performance comparison among sensors with three kinds of dielectric films with a high refractive index. (a) Normalized spectra; (b) resonance wavelength; (c) sensitivity; (d) FOM
Fig. 7. Parallel electric field distributions at resonance for different dielectric films with a low refractive index. (a) AgI; (b) COP; (c) SiO2
Fig. 8. Performance analysis of sensor with a low refractive index. (a) Normalized spectra; (b) resonance wavelength; (c) sensitivity; (d) FOM
Fig. 9. Performance comparison for sensors in all refractive index range. (a) Sensitivity; (b) FOM
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