Qilong Tan, Xia Zhang, Hu Kang, Zhiqing Peng, Xiaowei Li, Mochou Yang, Guoying Feng. Surface plasmon resonance refractive index sensor based on microstructured fiber with air-hole[J]. High Power Laser and Particle Beams, 2022, 34(5): 059001
- High Power Laser and Particle Beams
- Vol. 34, Issue 5, 059001 (2022)
Fig. 1. (a) Schematic diagram of the sensing structure, (b) splicing diagram of air holes introduced between PCFs, (c) optical microscope image of the collapsed area and air holes between two PCFs, (d) surface microscopic image of the grapefruit-shaped PCF end
Fig. 2. Structure and preparation process of the sensor
Fig. 3. Schematic diagram of the sensing system
Fig. 4. Effect of different sputtering time on the sensor
Fig. 5. SPR transmission spectra of the sensor and relationship between wavelength shift and refractive index
Fig. 6. Comparison of spectral resonance peak depths of four sensors with different sensing structures
Fig. 7. Sensor response to temperature and linear fitting
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