Zhao Xudong, Xu Yinsheng, Zhang Xianghua, Zhao Xiujian. Research Advancements in Optical Fiber Evanescent Wave Biochemical Sensing[J]. Laser & Optoelectronics Progress, 2021, 58(3): 3000051
- Laser & Optoelectronics Progress
- Vol. 58, Issue 3, 3000051 (2021)
Fig. 1. Fiber structure type: tapered fiber, U-shaped fiber, microstructure fiber, D-shaped fiber
Fig. 2. Optical fiber evanescent wave sensing
![Red shift of interference spectrum for a functionalized tapered optical fiber sensor used to detect Dengue E protein. (a) Without PMMA surface functionalization[15]; (b) with PMMA surface functionalization[16]](/Images/icon/loading.gif){kind=icon}
Fig. 3. Red shift of interference spectrum for a functionalized tapered optical fiber sensor used to detect Dengue E protein. (a) Without PMMA surface functionalization[15]; (b) with PMMA surface functionalization[16]
Fig. 4. Nucleic acid functionalized fiber optic probes[22]. (a) Schematic illustration of the sandwich-type assembly based Ade detection strategy; (b)calibration curve of Ade
Fig. 5. Schematic diagram of experimental setup used to characterize fabricated sensor[30]
Fig. 6. Fe2O3 nanotube coating micro-fiber interferometer[32]. (a) Diagrammatic sketch of gas sensing principle for the Fe2O3 coated MFI; (b) sectional view for the multi-core fiber
Fig. 7. MIR molecular fingerprint region[38]
Fig. 8. Evanescent wave biochemical sensing of chalcogenide fibers. (a) FEWS spectra of fed (solid line) and starved (dashed line) mice liver[41]; (b) human lung cell infrared spectra recorded with the TAS glass fiber[37]
Fig. 9. DIAFIR company’s product in France: TAS fiber evanescent wave sensor[42]
Fig. 10. Polymer-coated fiber sensor[44]. (a)General measurement principle of EWS of the polymer-coated fiber sensor；(b)IR absorption spectra of six concentrations of the p-xylene aqueous solution recorded by coated and uncoated ChG-TF
Fig. 11. SEM picture[14]. (a) Holes with different pulse energy; (b) hole with 24 mW pulse energy; (c) hole-array channels; (d) linear channels; (e) measured spectral responses at different CH4 concentrations; (f) absorption peak intensity as a function of CH4 concentration
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Table 1. Research summary of silica fiber biochemical sensing
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Table 2. Research summary of MIR biochemical optical fiber sensor
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