Min Liu, Dejiu Feng, Wenlin Feng. Properties of Hydrogen Sulfide Gas Sensor Based on No-Core-Multimode-No-Core Fiber Structure[J]. Acta Optica Sinica, 2019, 39(10): 1006007
- Acta Optica Sinica
- Vol. 39, Issue 10, 1006007 (2019)
Fig. 1. Structural diagram of NMN
Fig. 2. Field distribution of light propagation in NCF
Fig. 3. Transmission spectra of NMN structures with NCF lengths of 15, 30, and 45 mm
Fig. 4. Transmission spectra of NMN structures with different MMF lengths. (a) 10 mm; (b) 30 mm; (c) 50 mm
Fig. 5. Schematic of sensing mechanism
Fig. 6. Wavelength as a function of concentration of H2S. Inset shows spectral responses of sensor under various concentrations of H2S
Fig. 7. Gas selectivity of H2S sensor
Fig. 8. Response-recovery curve of H2S sensor
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