Infrared and Laser Engineering, Volume. 52, Issue 8, 20230394(2023)
Grapefruit-type three-core fiber sensor for trace water based on silver-silk protein-silver structure
Figures & Tables(14)
Fig. 3. When the thickness of silk protein is (a) 60 nm, (b) 90 nm, the loss peak varying curves with the height of air cores
Fig. 4. When the thickness of silk protein is (a) 60 nm, (b) 90 nm, the loss peak changing curves with the height of silver grating
Fig. 5. When the thickness of silk protein is (a) 60 nm, (c) 90 nm, the loss peak changing curves with the number of the silver gratings; (b) Local magnification at the peak of Fig.5(a)
Fig. 6. When the thickness of silk protein is (a) 60 nm, (b) 90 nm, the loss peak variesying curves with the spacing of the silver gratings
Table 1. Comparison of sensor parameters of different silk protein thicknesses
View tableView in ArticleTable 1. Comparison of sensor parameters of different silk protein thicknesses
Thickness of silk protein/nm Resonance wavelength/nm Peak value of loss/dB·m−1 FWHM/ nm 40 371 60216 68.4 60 388 114040 40.5 90 419 280430 27.6 100 430 361840 24.6
Table 2. When the thickness of silk protein is 60 nm and 90 nm, comparison of sensor parameters under different silver grating heights
View tableView in ArticleTable 2. When the thickness of silk protein is 60 nm and 90 nm, comparison of sensor parameters under different silver grating heights
h1/nm Resonance wavelength/nm Peak value of loss/dB·m−1 FWHM/nm 60 nm 90 nm 60 nm 90 nm 60 nm 90 nm 0 383.3 - 87217 - 45.8 - 7 390.2 422.5 106380 243900 41.3 29.8 8 391.5 423.9 109490 242560 41.4 31.2 9 392.6 425.5 112770 236010 41.6 38.3 10 394 428.1 116330 233190 41.6 39.7
Table 3. When the thickness of silk protein is 60 nm and 90 nm, comparison of sensor parameters under different amount of silver grating
View tableView in ArticleTable 3. When the thickness of silk protein is 60 nm and 90 nm, comparison of sensor parameters under different amount of silver grating
n Resonance wavelength/nm Peak value of loss/dB·m−1 FWHM/ nm 60 nm 90 nm 60 nm 90 nm 60 nm 90 nm 28 394.0 428.1 116330 233190 41.6 39.7 38 394.9 431 124200 243630 40.1 40 48 395.6 432.4 127910 247600 39.4 40.2 58 395.9 433.3 129650 247660 39.1 40.4
Table 4. When the thickness of silk protein is 60 nm and 90 nm, comparison of sensor parameters under different silver grating spacing
View tableView in ArticleTable 4. When the thickness of silk protein is 60 nm and 90 nm, comparison of sensor parameters under different silver grating spacing
d1/nm Resonance wavelength/nm Peak value of loss/dB·m−1 FWHM/ nm 60 nm 90 nm 60 nm 90 nm 60 nm 90 nm 20 395.9 429 129650 247660 39.1 40.4 30 398.4 432 142730 300300 36.2 29.7 40 400.6 434 151790 343760 35.5 24.1 50 402.1 436.2 159180 382740 34.6 21.9
Table 5. When the thickness of silk protein is 60 nm and 90 nm, comparison of sensor parameters of different underlayer silver film thicknesses
View tableView in ArticleTable 5. When the thickness of silk protein is 60 nm and 90 nm, comparison of sensor parameters of different underlayer silver film thicknesses
A1/nm Resonance wavelength/nm Peak value of loss/dB·m−1 FWHM/ nm 60 nm 90 nm 60 nm 90 nm 60 nm 90 nm 25 402.1 436.2 159180 382740 34.7 21.9 27 404.5 439.2 141000 316640 35 23.4 29 406.9 442.3 124240 263810 35.2 25.3 31 408.4 444.9 109270 221340 35.8 26.5
Table 6. Detection sensitivity of sensors of different designs
View tableView in ArticleTable 6. Detection sensitivity of sensors of different designs
Sensor Time Sensitivity Ref. D-shaped fiber covered with molecularly imprinted polymer 2018 1.25 nm/ppb [ 32 ]Fiber together with gold functionalized by biological receptors 2018 0.10 nm/ppb [ 33 ]Coated fibres based on Fabry-Perot interference 2020 178 nm/ppb [ 34 ]D-shaped fiber covered with Ag-Silk Fibroin-Ag structure 2023 1.39 nm/ppt -
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Yongpeng Xie, Shuo Liu, Linwan Zhao, Qun Zu. Grapefruit-type three-core fiber sensor for trace water based on silver-silk protein-silver structure[J]. Infrared and Laser Engineering, 2023, 52(8): 20230394
Paper Information
Category: Photoelectric measurement
Received: Jul. 2, 2023
Accepted: Jul. 24, 2023
Published Online: Oct. 19, 2023
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