Photonic crystal fiber and surface plasma resonance biosensor filled with gold threads
一种光子晶体光纤、表面等离子体的技术,应用在包层光纤、光波导光导、光导等方向,能够解决灵敏度低、光纤传感器交叉敏感等问题,达到高精度传感的效果
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[0023] See attached figure 1 , the photonic crystal fiber surface plasmon resonance biosensor filled with gold wires of the present invention includes a core 3 and a cladding, the cladding has a lower refractive index than the core 3; the core 3 is the background material of the optical fiber, quartz glass 2. The inner air hole of the photonic crystal fiber is filled with the biological liquid 5 to be tested, and gold wires 4 are filled in the two air holes of the cladding. The diameter of the air hole filled with the biological fluid sample to be tested is d c , the gold wire is d m , the diameter of the remaining air holes is d, and the air hole interval is Λ. The imaginary part value of the effective refractive index of the sensor core at different wavelengths is obtained by simulation, and then the transmission loss is calculated, and the wavelength of the surface plasmon resonance peak and the sensitivity of the sensor are obtained through the loss spectrum. The wavele...
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